Hazus-MH: Earthquake Event Report Region Name: PHF6_8_sl_no_cb Earthquake Scenario: PHF6_8_sl_no_cb Print Date: February 16, 2017 Disclaimer: This version of Hazus utilizes 2010 Census Data. Totals only reflect data for those census tracts/blocks included in the user s study region. The estimates of social and economic impacts contained in this report were produced using Hazus loss estimation methodology software which is based on current scientific and engineering knowledge. There are uncertainties inherent in any loss estimation technique. Therefore, there may be significant differences between the modeled results contained in this report and the actual social and economic losses following a specific earthquake. These results can be improved by using enhanced inventory, geotechnical, and observed ground motion data.
Table of Contents Section Page # General Description of the Region 3 Building and Lifeline Inventory 4 Building Inventory Critical Facility Inventory Transportation and Utility Lifeline Inventory Earthquake Scenario Parameters 6 Direct Earthquake Damage 7 Buildings Damage Critical Facilities Damage Transportation and Utility Lifeline Damage Induced Earthquake Damage 11 Debris Generation Social Impact 12 Shelter Requirements Casualties Economic Loss 13 Building Losses Transportation and Utility Lifeline Losses Long-term Indirect Economic Impacts Appendix A: County Listing for the Region Appendix B: Regional Population and Building Value Data
General Description of the Region Hazus is a regional earthquake loss estimation model that was developed by the Federal Emergency Management Agency and the National Institute of Building Sciences. The primary purpose of Hazus is to provide a methodology and software application to develop earthquake losses at a regional scale. These loss estimates would be used primarily by local, state and regional officials to plan and stimulate efforts to reduce risks from earthquakes and to prepare for emergency response and recovery. The earthquake loss estimates provided in this report was based on a region that includes 1 county(ies) from the following state(s): Oregon Note: Appendix A contains a complete listing of the counties contained in the region. The geographical size of the region is 465.48 square miles and contains 171 census tracts. There are over 304 thousand households in the region which has a total population of 735,334 people (2010 Census Bureau data). The distribution of population by State and County is provided in Appendix B. There are an estimated 248 thousand buildings in the region with a total building replacement value (excluding contents) of 86,281 (millions of dollars). Approximately 90.00 % of the buildings (and 73.00% of the building value) are associated with residential housing. The replacement value of the transportation and utility lifeline systems is estimated to be 21,993 and 1,587 dollars), respectively. (millions of
Building and Lifeline Inventory Building Inventory Hazus estimates that there are 248 thousand buildings in the region which have an aggregate total replacement value of 86,281 (millions of dollars). Appendix B provides a general distribution of the building value by State and County. In terms of building construction types found in the region, wood frame construction makes up 86% of the building inventory. The remaining percentage is distributed between the other general building types. Critical Facility Inventory Hazus breaks critical facilities into two (2) groups: essential facilities and high potential loss facilities (HPL). Essential facilities include hospitals, medical clinics, schools, fire stations, police stations and emergency operations facilities. High potential loss facilities include dams, levees, military installations, nuclear power plants and hazardous material sites. For essential facilities, there are 10 hospitals in the region with a total bed capacity of 2,172 beds. There are 255 schools, 4 fire stations, 15 police stations and 0 emergency operation facilities. With respect to high potential loss facilities (HPL), there are 0 dams identified within the region. Of these, 0 of the dams are classified as high hazard. The inventory also includes 252 hazardous material sites, 0 military installations and 0 nuclear power plants. Transportation and Utility Lifeline Inventory Within Hazus, the lifeline inventory is divided between transportation and utility lifeline systems. There are seven (7) transportation systems that include highways, railways, light rail, bus, ports, ferry and airports. There are six (6) utility systems that include potable water, wastewater, natural gas, crude & refined oil, electric power and communications. The lifeline inventory data are provided in Tables 1 and 2. The total value of the lifeline inventory is over 23,580.00 (millions of dollars). This inventory includes over 459 kilometers of highways, 397 bridges, 58,309 kilometers of pipes.
Table 1: Transportation System Lifeline Inventory System Component # Locations/ Replacement value # Segments (millions of dollars) Highway Bridges 397 17,896.90 Segments 381 3,102.80 Tunnels 7 16.20 Subtotal 21,015.90 Railways Bridges 8 4.90 Facilities 26 69.20 Segments 197 243.10 Tunnels 0 0.00 Subtotal 317.20 Light Rail Bridges 3 1.30 Facilities 88 234.30 Segments 101 59.20 Tunnels 0 0.00 Subtotal 294.80 Bus Facilities 2 2.50 Subtotal 2.50 Ferry Facilities 0 0.00 Subtotal 0.00 Port Facilities 95 189.70 Subtotal 189.70 Airport Facilities 2 21.30 Runways 4 151.90 Subtotal 173.20 Total 21,993.20
Table 2: Utility System Lifeline Inventory # Locations / Replacement value System Component (millions of dollars) Segments Potable Water Distribution Lines NA 583.10 Facilities 1 37.60 Pipelines 0 0.00 Subtotal 620.70 Waste Water Distribution Lines NA 349.90 Facilities 4 301.00 Pipelines 0 0.00 Subtotal 650.90 Natural Gas Distribution Lines NA 233.20 Facilities 1 1.20 Pipelines 0 0.00 Subtotal 234.50 Oil Systems Facilities 4 0.50 Pipelines 0 0.00 Subtotal 0.50 Electrical Power Facilities 10 1,243.00 Subtotal 1,243.00 Communication Facilities 38 4.30 Subtotal 4.30 Total 2,753.80
Earthquake Scenario Hazus uses the following set of information to define the earthquake parameters used for the earthquake loss estimate provided in this report. Scenario Name Type of Earthquake PHF6_8_sl_no_cb Source Fault Name Portland Hills fault Historical Epicenter ID # 819 Probabilistic Return Period NA Longitude of Epicenter -122.70 Latitude of Epicenter 45.52 Earthquake Magnitude 6.80 Depth (Km) 0.00 Rupture Length (Km) 26.55 Rupture Orientation (degrees) 0.00 Attenuation Function West US, Extensional 2008 - Reverse
Building Damage Building Damage Hazus estimates that about 100,719 buildings will be at least moderately damaged. This is over 41.00 % of the buildings in the region. There are an estimated 16,594 buildings that will be damaged beyond repair. The definition of the damage states is provided in Volume 1: Chapter 5 of the Hazus technical manual. Table 3 below summarizes the expected damage by general occupancy for the buildings in the region. Table 4 below summarizes the expected damage by general building type. Table 3: Expected Building Damage by Occupancy None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Agriculture 117 0.16 98 0.13 120 0.20 98 0.42 133 0.80 Commercial 1,195 1.60 1,449 1.99 3,622 5.97 4,432 18.86 7,334 44.19 Education 75 0.10 77 0.11 124 0.20 130 0.55 185 1.11 Government 26 0.03 22 0.03 57 0.09 105 0.45 396 2.39 Industrial 332 0.44 349 0.48 878 1.45 1,106 4.71 1,818 10.95 Other Residential 5,018 6.71 5,263 7.22 6,037 9.96 4,018 17.10 3,557 21.44 Religion 183 0.24 212 0.29 337 0.56 372 1.58 581 3.50 Single Family 67,897 90.72 65,464 89.76 49,454 81.57 13,236 56.33 2,591 15.61 Total 74,843 72,934 60,629 23,496 16,595 Table 4: Expected Building Damage by Building Type (All Design Levels) None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Wood 72,225 96.50 70153 96.19 53,963 89.01 14,935 63.56 3,145 18.95 Steel 322 0.43 260 0.36 861 1.42 1,523 6.48 2,916 17.57 Concrete 388 0.52 404 0.55 1,082 1.78 1,466 6.24 2,288 13.79 Precast 282 0.38 224 0.31 759 1.25 1,204 5.12 2,305 13.89 RM 51 0.07 31 0.04 104 0.17 158 0.67 247 1.49 URM 837 1.12 979 1.34 1,904 3.14 2,136 9.09 3,886 23.41 MH 739 0.99 883 1.21 1,956 3.23 2,074 8.83 1,809 10.90 72,934 Total 74,843 60,629 23,496 16,595 *Note: RM URM MH Reinforced Masonry Unreinforced Masonry Manufactured Housing
Essential Facility Damage Before the earthquake, the region had 2,172 hospital beds available for use. On the day of the earthquake, the model estimates that only 221 hospital beds (10.00%) are available for use by patients already in the hospital and those injured by the earthquake. After one week, 28.00% of the beds will be back in service. By 30 days, 64.00% will be operational. Table 5: Expected Damage to Essential Facilities # Facilities Classification Total At Least Moderate Complete With Functionality Damage > 50% Damage > 50% > 50% on day 1 Hospitals 10 9 0 0 Schools 255 47 0 65 EOCs 0 0 0 0 PoliceStations 15 8 0 2 FireStations 4 1 0 2
Transportation and Utility Lifeline Damage Table 6 provides damage estimates for the transportation system. Table 6: Expected Damage to the Transportation Systems System Component Number of Locations Locations/ With at Least With Complete With Functionality > 50 % Segments Mod. Damage Damage After Day 1 After Day 7 Highway Segments 381 0 0 381 381 Bridges 397 133 45 262 301 Tunnels 7 0 0 7 7 Railways Segments 197 0 0 197 197 Bridges 8 0 0 8 8 Tunnels 0 0 0 0 0 Facilities 26 25 0 3 26 Light Rail Segments 101 0 0 101 101 Bridges 3 0 0 3 3 Tunnels 0 0 0 0 0 Facilities 88 71 0 28 88 Bus Facilities 2 2 0 1 2 Ferry Facilities 0 0 0 0 0 Port Facilities 95 89 0 13 95 Airport Facilities 2 1 0 2 2 Runways 4 0 0 4 4 Note: Roadway segments, railroad tracks and light rail tracks are assumed to be damaged by ground failure only. If ground failure maps are not provided, damage estimates to these components will not be computed. Tables 7-9 provide information on the damage to the utility lifeline systems. Table 7 provides damage to the utility system facilities. Table 8 provides estimates on the number of leaks and breaks by the pipelines of the utility systems. For electric power and potable water, Hazus performs a simplified system performance analysis. Table 9 provides a summary of the system performance information.
Table 7 : Expected Utility System Facility Damage # of Locations System Total # With at Least With Complete with Functionality > 50 % Moderate Damage Damage After Day 1 After Day 7 Potable Water 1 0 0 1 1 Waste Water 4 1 0 2 4 Natural Gas 1 0 0 1 1 Oil Systems 4 4 0 0 2 Electrical Power 10 7 0 1 10 Communication 38 34 0 6 38 Table 8 : Expected Utility System Pipeline Damage (Site Specific) System Total Pipelines Number of Number of Length (kms) Leaks Breaks Potable Water 29,155 9821 2455 Waste Water 17,493 7038 1760 Natural Gas 11,662 2019 505 Oil 0 0 0 Table 9: Expected Potable Water and Electric Power System Performance Total # of Number of Households without Service Households At Day 1 At Day 3 At Day 7 At Day 30 At Day 90 Potable Water 126,450 123,555 117,632 80,419 304 304,540 Electric Power 121,026 75,971 32,078 6,429 166
Induced Earthquake Damage Debris Generation Hazus estimates the amount of debris that will be generated by the earthquake. The model breaks the debris into two general categories: a) Brick/Wood and b) Reinforced Concrete/Steel. This distinction is made because of the different types of material handling equipment required to handle the debris. The model estimates that a total of 9.29 million tons of debris will be generated. Of the total amount, Brick/Wood comprises 29.00% of the total, with the remainder being Reinforced Concrete/Steel. If the debris tonnage is converted to an estimated number of truckloads, it will require 371,400 truckloads (@25 tons/truck) to remove the debris generated by the earthquake.
Social Impact Shelter Requirement Hazus estimates the number of households that are expected to be displaced from their homes due to the earthquake and the number of displaced people that will require accommodations in temporary public shelters. The model estimates 36,097 households to be displaced due to the earthquake. Of these, 19,644 people (out of a total population of 735,334) will seek temporary shelter in public shelters. Casualties Hazus estimates the number of people that will be injured and killed by the earthquake. The casualties are broken down into four (4) severity levels that describe the extent of the injuries. The levels are described as follows; Severity Level 1: Injuries will require medical attention but hospitalization is not needed. Severity Level 2: Injuries will require hospitalization but are not considered life-threatening Severity Level 3: Injuries will require hospitalization and can become life threatening if not promptly treated. Severity Level 4: Victims are killed by the earthquake. The casualty estimates are provided for three (3) times of day: 2:00 AM, 2:00 PM and 5:00 PM. These times represent the periods of the day that different sectors of the community are at their peak occupancy loads. The 2:00 AM estimate considers that the residential occupancy load is maximum, the 2:00 PM estimate considers that the educational, commercial and industrial sector loads are maximum and 5:00 PM represents peak commute time. Table 10 provides a summary of the casualties estimated for this earthquake
Table 10: Casualty Estimates Level 1 Level 2 Level 3 Level 4 2 AM Commercial 200 63 10 21 Commuting 0 0 1 0 Educational 0 0 0 0 Hotels 0 0 0 0 Industrial 194 60 10 20 Other-Residential 2,953 852 125 245 Single Family 1,233 218 17 32 Total 4,581 1,194 164 317 2 PM Commercial 11,045 3,461 579 1,140 Commuting 3 4 7 1 Educational 2,801 880 149 291 Hotels 0 0 0 0 Industrial 1,433 446 73 143 Other-Residential 538 156 23 44 Single Family 223 40 4 6 Total 16,044 4,988 836 1,626 5 PM Commercial 7,623 2,388 401 780 Commuting 56 75 127 24 Educational 502 160 27 53 Hotels 0 0 0 0 Industrial 896 279 46 89 Other-Residential 1,149 334 50 95 Single Family 487 88 8 13 Total 10,714 3,324 659 1,056
Economic Loss The total economic loss estimated for the earthquake is 36,260.67 (millions of dollars), which includes building and lifeline related losses based on the region's available inventory. The following three sections provide more detailed information about these losses. Building-Related Losses The building losses are broken into two categories: direct building losses and business interruption losses. The direct building losses are the estimated costs to repair or replace the damage caused to the building and its contents. The business interruption losses are the losses associated with inability to operate a business because of the damage sustained during the earthquake. Business interruption losses also include the temporary living expenses for those people displaced from their homes because of the earthquake. The total building-related losses were 32,781.24 (millions of dollars); 16 % of the estimated losses were related to the business interruption of the region. By far, the largest loss was sustained by the residential occupancies which made up over 36 % of the total loss. Table 11 below provides a summary of the losses associated with the building damage. Table 11: Building-Related Economic Loss Estimates (Millions of dollars) Category Area Single Other Family Residential Commercial Industrial Others Total Income Losses Wage 0.00 68.60 1,138.83 41.63 79.30 1,328.35 Capital-Related 0.00 29.00 1,069.13 26.18 16.76 1,141.07 Rental 106.73 339.91 538.65 14.66 54.27 1,054.21 Relocation 400.64 211.58 806.44 57.54 302.77 1,778.98 Subtotal 507.37 649.09 3,553.06 140.01 453.10 5,302.62 Capital Stock Losses Structural 824.53 693.34 1,969.31 363.07 397.22 4,247.47 Non_Structural 3,639.05 3,719.86 6,320.07 1,464.79 1,423.15 16,566.92 Content 1,066.71 828.66 2,929.71 949.72 651.33 6,426.13 Inventory 0.00 0.00 73.53 162.31 2.27 238.11 Subtotal 5,530.28 5,241.86 11,292.62 2,939.89 2,473.97 27,478.62 Total 6,037.66 5,890.95 14,845.68 3,079.89 2,927.07 32,781.24
Transportation and Utility Lifeline Losses For the transportation and utility lifeline systems, Hazus computes the direct repair cost for each component only. There are no losses computed by Hazus for business interruption due to lifeline outages. Tables 12 & 13 provide a detailed breakdown in the expected lifeline losses. Hazus estimates the long-term economic impacts to the region for 15 years after the earthquake. The model quantifies this information in terms of income and employment changes within the region. Table 14 presents the results of the region for the given earthquake. Table 12: Transportation System Economic Losses (Millions of dollars) System Component Inventory Value Economic Loss Loss Ratio (%) Highway Segments 3,102.75 $0.00 0.00 Bridges 17,896.94 $2708.17 15.13 Tunnels 16.21 $1.25 7.71 Subtotal 21015.90 2,709.40 Railways Segments 243.07 $0.00 0.00 Bridges 4.88 $0.13 2.68 Tunnels 0.00 $0.00 0.00 Facilities 69.24 $35.41 51.14 Subtotal 317.20 35.50 Light Rail Segments 59.19 $0.00 0.00 Bridges 1.28 $0.05 4.07 Tunnels 0.00 $0.00 0.00 Facilities 234.34 $108.81 46.43 Subtotal 294.80 108.90 Bus Facilities 2.46 $1.17 47.44 Subtotal 2.50 1.20 Ferry Facilities 0.00 $0.00 0.00 Subtotal 0.00 0.00 Port Facilities 189.72 $94.83 49.99 Subtotal 189.70 94.80 Airport Facilities 21.30 $5.58 26.20 Runways 151.86 $0.00 0.00 Subtotal 173.20 5.60 Total 21993.20 2,955.40
Table 13: Utility System Economic Losses (Millions of dollars) System Component Inventory Value Economic Loss Loss Ratio (%) Potable Water Pipelines 0.00 $0.00 0.00 Facilities 37.60 $4.59 12.20 Distribution Lines 583.10 $44.19 7.58 Subtotal 620.72 $48.78 Waste Water Pipelines 0.00 $0.00 0.00 Facilities 301.00 $37.25 12.37 Distribution Lines 349.90 $31.67 9.05 Subtotal 650.89 $68.92 Natural Gas Pipelines 0.00 $0.00 0.00 Facilities 1.20 $0.07 5.65 Distribution Lines 233.20 $9.08 3.89 Subtotal 234.47 $9.15 Oil Systems Pipelines 0.00 $0.00 0.00 Facilities 0.50 $0.15 34.14 Subtotal 0.45 $0.15 Electrical Power Facilities 1,243.00 $395.56 31.82 Subtotal 1,243.00 $395.56 Communication Facilities 4.30 $1.44 33.61 Subtotal 4.29 $1.44 Total 2,753.82 $524.01 Table 14. Indirect Economic Impact with outside aid (Employment as # of people and Income in millions of $) LOSS Total %
Appendix A: County Listing for the Region Multnomah,OR
Appendix B: Regional Population and Building Value Data State County Name Population Oregon Building Value (millions of dollars) Residential Non-Residential Total Multnomah 735,334 62,709 23,571 86,281 Total State 735,334 62,709 23,571 86,281 Total Region 735,334 62,709 23,571 86,281
Hazus-MH: Earthquake Event Report Region Name: PHF6_8_sl_dry_cb Earthquake Scenario: PHF6_8_soils_dry_lssus_cb Print Date: February 17, 2017 Disclaimer: This version of Hazus utilizes 2010 Census Data. Totals only reflect data for those census tracts/blocks included in the user s study region. The estimates of social and economic impacts contained in this report were produced using Hazus loss estimation methodology software which is based on current scientific and engineering knowledge. There are uncertainties inherent in any loss estimation technique. Therefore, there may be significant differences between the modeled results contained in this report and the actual social and economic losses following a specific earthquake. These results can be improved by using enhanced inventory, geotechnical, and observed ground motion data.
Table of Contents Section Page # General Description of the Region 3 Building and Lifeline Inventory 4 Building Inventory Critical Facility Inventory Transportation and Utility Lifeline Inventory Earthquake Scenario Parameters 6 Direct Earthquake Damage 7 Buildings Damage Critical Facilities Damage Transportation and Utility Lifeline Damage Induced Earthquake Damage 11 Debris Generation Social Impact 12 Shelter Requirements Casualties Economic Loss 13 Building Losses Transportation and Utility Lifeline Losses Long-term Indirect Economic Impacts Appendix A: County Listing for the Region Appendix B: Regional Population and Building Value Data
General Description of the Region Hazus is a regional earthquake loss estimation model that was developed by the Federal Emergency Management Agency and the National Institute of Building Sciences. The primary purpose of Hazus is to provide a methodology and software application to develop earthquake losses at a regional scale. These loss estimates would be used primarily by local, state and regional officials to plan and stimulate efforts to reduce risks from earthquakes and to prepare for emergency response and recovery. The earthquake loss estimates provided in this report was based on a region that includes 1 county(ies) from the following state(s): Oregon Note: Appendix A contains a complete listing of the counties contained in the region. The geographical size of the region is 465.48 square miles and contains 171 census tracts. There are over 304 thousand households in the region which has a total population of 735,334 people (2010 Census Bureau data). The distribution of population by State and County is provided in Appendix B. There are an estimated 248 thousand buildings in the region with a total building replacement value (excluding contents) of 86,281 (millions of dollars). Approximately 90.00 % of the buildings (and 73.00% of the building value) are associated with residential housing. The replacement value of the transportation and utility lifeline systems is estimated to be 21,993 and 1,587 dollars), respectively. (millions of
Building and Lifeline Inventory Building Inventory Hazus estimates that there are 248 thousand buildings in the region which have an aggregate total replacement value of 86,281 (millions of dollars). Appendix B provides a general distribution of the building value by State and County. In terms of building construction types found in the region, wood frame construction makes up 86% of the building inventory. The remaining percentage is distributed between the other general building types. Critical Facility Inventory Hazus breaks critical facilities into two (2) groups: essential facilities and high potential loss facilities (HPL). Essential facilities include hospitals, medical clinics, schools, fire stations, police stations and emergency operations facilities. High potential loss facilities include dams, levees, military installations, nuclear power plants and hazardous material sites. For essential facilities, there are 10 hospitals in the region with a total bed capacity of 2,172 beds. There are 255 schools, 4 fire stations, 15 police stations and 0 emergency operation facilities. With respect to high potential loss facilities (HPL), there are 0 dams identified within the region. Of these, 0 of the dams are classified as high hazard. The inventory also includes 252 hazardous material sites, 0 military installations and 0 nuclear power plants. Transportation and Utility Lifeline Inventory Within Hazus, the lifeline inventory is divided between transportation and utility lifeline systems. There are seven (7) transportation systems that include highways, railways, light rail, bus, ports, ferry and airports. There are six (6) utility systems that include potable water, wastewater, natural gas, crude & refined oil, electric power and communications. The lifeline inventory data are provided in Tables 1 and 2. The total value of the lifeline inventory is over 23,580.00 (millions of dollars). This inventory includes over 459 kilometers of highways, 397 bridges, 58,309 kilometers of pipes.
Table 1: Transportation System Lifeline Inventory System Component # Locations/ Replacement value # Segments (millions of dollars) Highway Bridges 397 17,896.90 Segments 381 3,102.80 Tunnels 7 16.20 Subtotal 21,015.90 Railways Bridges 8 4.90 Facilities 26 69.20 Segments 197 243.10 Tunnels 0 0.00 Subtotal 317.20 Light Rail Bridges 3 1.30 Facilities 88 234.30 Segments 101 59.20 Tunnels 0 0.00 Subtotal 294.80 Bus Facilities 2 2.50 Subtotal 2.50 Ferry Facilities 0 0.00 Subtotal 0.00 Port Facilities 95 189.70 Subtotal 189.70 Airport Facilities 2 21.30 Runways 4 151.90 Subtotal 173.20 Total 21,993.20
Table 2: Utility System Lifeline Inventory # Locations / Replacement value System Component (millions of dollars) Segments Potable Water Distribution Lines NA 583.10 Facilities 1 37.60 Pipelines 0 0.00 Subtotal 620.70 Waste Water Distribution Lines NA 349.90 Facilities 4 301.00 Pipelines 0 0.00 Subtotal 650.90 Natural Gas Distribution Lines NA 233.20 Facilities 1 1.20 Pipelines 0 0.00 Subtotal 234.50 Oil Systems Facilities 4 0.50 Pipelines 0 0.00 Subtotal 0.50 Electrical Power Facilities 10 1,243.00 Subtotal 1,243.00 Communication Facilities 38 4.30 Subtotal 4.30 Total 2,753.80
Earthquake Scenario Hazus uses the following set of information to define the earthquake parameters used for the earthquake loss estimate provided in this report. Scenario Name Type of Earthquake PHF6_8_soils_dry_lssus_cb Source Fault Name Portland Hills fault Historical Epicenter ID # 819 Probabilistic Return Period NA Longitude of Epicenter -122.70 Latitude of Epicenter 45.53 Earthquake Magnitude 6.80 Depth (Km) 0.00 Rupture Length (Km) 26.55 Rupture Orientation (degrees) 0.00 Attenuation Function West US, Extensional 2008 - Reverse
Building Damage Building Damage Hazus estimates that about 100,944 buildings will be at least moderately damaged. This is over 41.00 % of the buildings in the region. There are an estimated 16,689 buildings that will be damaged beyond repair. The definition of the damage states is provided in Volume 1: Chapter 5 of the Hazus technical manual. Table 3 below summarizes the expected damage by general occupancy for the buildings in the region. Table 4 below summarizes the expected damage by general building type. Table 3: Expected Building Damage by Occupancy None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Agriculture 117 0.16 98 0.13 119 0.20 99 0.42 133 0.80 Commercial 1,195 1.60 1,447 1.99 3,611 5.97 4,437 18.67 7,342 43.99 Education 75 0.10 76 0.11 124 0.20 130 0.55 185 1.11 Government 26 0.03 22 0.03 56 0.09 105 0.44 397 2.38 Industrial 332 0.44 349 0.48 876 1.45 1,107 4.66 1,820 10.90 Other Residential 5,013 6.70 5,248 7.21 6,023 9.96 4,042 17.01 3,567 21.37 Religion 182 0.24 211 0.29 336 0.56 374 1.57 582 3.49 Single Family 67,842 90.72 65,321 89.76 49,342 81.57 13,474 56.69 2,664 15.96 Total 74,780 72,771 60,487 23,767 16,690 Table 4: Expected Building Damage by Building Type (All Design Levels) None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Wood 72,162 96.50 69993 96.18 53,833 89.00 15,202 63.96 3,229 19.35 Steel 322 0.43 260 0.36 860 1.42 1,522 6.41 2,918 17.48 Concrete 388 0.52 403 0.55 1,080 1.78 1,467 6.17 2,290 13.72 Precast 282 0.38 223 0.31 757 1.25 1,205 5.07 2,306 13.82 RM 51 0.07 31 0.04 104 0.17 158 0.67 247 1.48 URM 837 1.12 977 1.34 1,899 3.14 2,139 9.00 3,889 23.30 MH 738 0.99 883 1.21 1,954 3.23 2,074 8.73 1,811 10.85 72,771 Total 74,780 60,487 23,767 16,690 *Note: RM URM MH Reinforced Masonry Unreinforced Masonry Manufactured Housing
Essential Facility Damage Before the earthquake, the region had 2,172 hospital beds available for use. On the day of the earthquake, the model estimates that only 218 hospital beds (10.00%) are available for use by patients already in the hospital and those injured by the earthquake. After one week, 28.00% of the beds will be back in service. By 30 days, 63.00% will be operational. Table 5: Expected Damage to Essential Facilities # Facilities Classification Total At Least Moderate Complete With Functionality Damage > 50% Damage > 50% > 50% on day 1 Hospitals 10 9 0 0 Schools 255 47 0 65 EOCs 0 0 0 0 PoliceStations 15 8 0 2 FireStations 4 1 0 2
Transportation and Utility Lifeline Damage Table 6 provides damage estimates for the transportation system. Table 6: Expected Damage to the Transportation Systems System Component Number of Locations Locations/ With at Least With Complete With Functionality > 50 % Segments Mod. Damage Damage After Day 1 After Day 7 Highway Segments 381 0 0 381 381 Bridges 397 133 45 262 301 Tunnels 7 2 0 7 7 Railways Segments 197 0 0 197 197 Bridges 8 0 0 8 8 Tunnels 0 0 0 0 0 Facilities 26 25 0 3 26 Light Rail Segments 101 0 0 101 101 Bridges 3 0 0 3 3 Tunnels 0 0 0 0 0 Facilities 88 71 0 28 88 Bus Facilities 2 2 0 1 2 Ferry Facilities 0 0 0 0 0 Port Facilities 95 89 0 13 95 Airport Facilities 2 1 0 2 2 Runways 4 0 0 4 4 Note: Roadway segments, railroad tracks and light rail tracks are assumed to be damaged by ground failure only. If ground failure maps are not provided, damage estimates to these components will not be computed. Tables 7-9 provide information on the damage to the utility lifeline systems. Table 7 provides damage to the utility system facilities. Table 8 provides estimates on the number of leaks and breaks by the pipelines of the utility systems. For electric power and potable water, Hazus performs a simplified system performance analysis. Table 9 provides a summary of the system performance information.
Table 7 : Expected Utility System Facility Damage # of Locations System Total # With at Least With Complete with Functionality > 50 % Moderate Damage Damage After Day 1 After Day 7 Potable Water 1 0 0 1 1 Waste Water 4 1 0 2 4 Natural Gas 1 0 0 1 1 Oil Systems 4 4 0 0 2 Electrical Power 10 7 0 1 10 Communication 38 34 0 6 38 Table 8 : Expected Utility System Pipeline Damage (Site Specific) System Total Pipelines Number of Number of Length (kms) Leaks Breaks Potable Water 29,155 9821 2455 Waste Water 17,493 7038 1760 Natural Gas 11,662 2019 505 Oil 0 0 0 Table 9: Expected Potable Water and Electric Power System Performance Total # of Number of Households without Service Households At Day 1 At Day 3 At Day 7 At Day 30 At Day 90 Potable Water 126,454 123,558 117,635 80,423 304 304,540 Electric Power 121,053 76,037 32,176 6,495 166
Induced Earthquake Damage Debris Generation Hazus estimates the amount of debris that will be generated by the earthquake. The model breaks the debris into two general categories: a) Brick/Wood and b) Reinforced Concrete/Steel. This distinction is made because of the different types of material handling equipment required to handle the debris. The model estimates that a total of 9.31 million tons of debris will be generated. Of the total amount, Brick/Wood comprises 29.00% of the total, with the remainder being Reinforced Concrete/Steel. If the debris tonnage is converted to an estimated number of truckloads, it will require 372,400 truckloads (@25 tons/truck) to remove the debris generated by the earthquake.
Social Impact Shelter Requirement Hazus estimates the number of households that are expected to be displaced from their homes due to the earthquake and the number of displaced people that will require accommodations in temporary public shelters. The model estimates 36,646 households to be displaced due to the earthquake. Of these, 19,909 people (out of a total population of 735,334) will seek temporary shelter in public shelters. Casualties Hazus estimates the number of people that will be injured and killed by the earthquake. The casualties are broken down into four (4) severity levels that describe the extent of the injuries. The levels are described as follows; Severity Level 1: Injuries will require medical attention but hospitalization is not needed. Severity Level 2: Injuries will require hospitalization but are not considered life-threatening Severity Level 3: Injuries will require hospitalization and can become life threatening if not promptly treated. Severity Level 4: Victims are killed by the earthquake. The casualty estimates are provided for three (3) times of day: 2:00 AM, 2:00 PM and 5:00 PM. These times represent the periods of the day that different sectors of the community are at their peak occupancy loads. The 2:00 AM estimate considers that the residential occupancy load is maximum, the 2:00 PM estimate considers that the educational, commercial and industrial sector loads are maximum and 5:00 PM represents peak commute time. Table 10 provides a summary of the casualties estimated for this earthquake
Table 10: Casualty Estimates Level 1 Level 2 Level 3 Level 4 2 AM Commercial 200 63 11 21 Commuting 0 0 1 0 Educational 0 0 0 0 Hotels 0 0 0 0 Industrial 194 60 10 20 Other-Residential 2,968 855 126 245 Single Family 1,249 221 17 32 Total 4,612 1,200 164 318 2 PM Commercial 11,052 3,463 580 1,141 Commuting 3 4 7 1 Educational 2,803 881 149 291 Hotels 0 0 0 0 Industrial 1,434 446 73 143 Other-Residential 542 157 23 44 Single Family 226 41 4 6 Total 16,060 4,992 836 1,627 5 PM Commercial 7,628 2,389 402 781 Commuting 56 75 126 24 Educational 503 160 27 53 Hotels 0 0 0 0 Industrial 896 279 46 89 Other-Residential 1,155 335 50 95 Single Family 493 89 8 13 Total 10,732 3,328 659 1,056
Economic Loss The total economic loss estimated for the earthquake is 36,436.98 (millions of dollars), which includes building and lifeline related losses based on the region's available inventory. The following three sections provide more detailed information about these losses. Building-Related Losses The building losses are broken into two categories: direct building losses and business interruption losses. The direct building losses are the estimated costs to repair or replace the damage caused to the building and its contents. The business interruption losses are the losses associated with inability to operate a business because of the damage sustained during the earthquake. Business interruption losses also include the temporary living expenses for those people displaced from their homes because of the earthquake. The total building-related losses were 32,956.79 (millions of dollars); 16 % of the estimated losses were related to the business interruption of the region. By far, the largest loss was sustained by the residential occupancies which made up over 37 % of the total loss. Table 11 below provides a summary of the losses associated with the building damage. Table 11: Building-Related Economic Loss Estimates (Millions of dollars) Category Area Single Other Family Residential Commercial Industrial Others Total Income Losses Wage 0.00 69.03 1,140.02 41.67 79.48 1,330.19 Capital-Related 0.00 29.18 1,070.36 26.20 16.79 1,142.54 Rental 107.91 343.56 539.31 14.68 54.37 1,059.83 Relocation 404.50 213.62 807.35 57.59 303.33 1,786.39 Subtotal 512.41 655.40 3,557.04 140.13 453.97 5,318.95 Capital Stock Losses Structural 838.00 700.34 1,972.12 363.47 398.02 4,271.95 Non_Structural 3,675.92 3,754.82 6,336.50 1,469.24 1,427.54 16,664.03 Content 1,076.29 837.28 2,941.49 953.44 654.25 6,462.74 Inventory 0.00 0.00 73.83 163.00 2.28 239.12 Subtotal 5,590.21 5,292.44 11,323.94 2,949.16 2,482.09 27,637.84 Total 6,102.62 5,947.84 14,880.98 3,089.29 2,936.06 32,956.79
Transportation and Utility Lifeline Losses For the transportation and utility lifeline systems, Hazus computes the direct repair cost for each component only. There are no losses computed by Hazus for business interruption due to lifeline outages. Tables 12 & 13 provide a detailed breakdown in the expected lifeline losses. Hazus estimates the long-term economic impacts to the region for 15 years after the earthquake. The model quantifies this information in terms of income and employment changes within the region. Table 14 presents the results of the region for the given earthquake. Table 12: Transportation System Economic Losses (Millions of dollars) System Component Inventory Value Economic Loss Loss Ratio (%) Highway Segments 3,102.75 $0.00 0.00 Bridges 17,896.94 $2708.17 15.13 Tunnels 16.21 $1.48 9.11 Subtotal 21015.90 2,709.60 Railways Segments 243.07 $0.00 0.00 Bridges 4.88 $0.13 2.68 Tunnels 0.00 $0.00 0.00 Facilities 69.24 $35.51 51.28 Subtotal 317.20 35.60 Light Rail Segments 59.19 $0.00 0.00 Bridges 1.28 $0.05 4.07 Tunnels 0.00 $0.00 0.00 Facilities 234.34 $108.93 46.48 Subtotal 294.80 109.00 Bus Facilities 2.46 $1.17 47.45 Subtotal 2.50 1.20 Ferry Facilities 0.00 $0.00 0.00 Subtotal 0.00 0.00 Port Facilities 189.72 $95.14 50.15 Subtotal 189.70 95.10 Airport Facilities 21.30 $5.58 26.20 Runways 151.86 $0.00 0.00 Subtotal 173.20 5.60 Total 21993.20 2,956.20
Table 13: Utility System Economic Losses (Millions of dollars) System Component Inventory Value Economic Loss Loss Ratio (%) Potable Water Pipelines 0.00 $0.00 0.00 Facilities 37.60 $4.59 12.20 Distribution Lines 583.10 $44.19 7.58 Subtotal 620.72 $48.79 Waste Water Pipelines 0.00 $0.00 0.00 Facilities 301.00 $37.27 12.38 Distribution Lines 349.90 $31.67 9.05 Subtotal 650.89 $68.94 Natural Gas Pipelines 0.00 $0.00 0.00 Facilities 1.20 $0.07 5.65 Distribution Lines 233.20 $9.08 3.89 Subtotal 234.47 $9.15 Oil Systems Pipelines 0.00 $0.00 0.00 Facilities 0.50 $0.15 34.23 Subtotal 0.45 $0.15 Electrical Power Facilities 1,243.00 $395.56 31.82 Subtotal 1,243.00 $395.56 Communication Facilities 4.30 $1.44 33.61 Subtotal 4.29 $1.44 Total 2,753.82 $524.03 Table 14. Indirect Economic Impact with outside aid (Employment as # of people and Income in millions of $) LOSS Total %
Appendix A: County Listing for the Region Multnomah,OR
Appendix B: Regional Population and Building Value Data State County Name Population Oregon Building Value (millions of dollars) Residential Non-Residential Total Multnomah 735,334 62,709 23,571 86,281 Total State 735,334 62,709 23,571 86,281 Total Region 735,334 62,709 23,571 86,281
Hazus-MH: Earthquake Event Report Region Name: PHF6_8_sl_wet_cb2 Earthquake Scenario: PHF6_8_sl_wet_cb_run2 Print Date: February 17, 2017 Disclaimer: This version of Hazus utilizes 2010 Census Data. Totals only reflect data for those census tracts/blocks included in the user s study region. The estimates of social and economic impacts contained in this report were produced using Hazus loss estimation methodology software which is based on current scientific and engineering knowledge. There are uncertainties inherent in any loss estimation technique. Therefore, there may be significant differences between the modeled results contained in this report and the actual social and economic losses following a specific earthquake. These results can be improved by using enhanced inventory, geotechnical, and observed ground motion data.
Table of Contents Section Page # General Description of the Region 3 Building and Lifeline Inventory 4 Building Inventory Critical Facility Inventory Transportation and Utility Lifeline Inventory Earthquake Scenario Parameters 6 Direct Earthquake Damage 7 Buildings Damage Critical Facilities Damage Transportation and Utility Lifeline Damage Induced Earthquake Damage 11 Debris Generation Social Impact 12 Shelter Requirements Casualties Economic Loss 13 Building Losses Transportation and Utility Lifeline Losses Long-term Indirect Economic Impacts Appendix A: County Listing for the Region Appendix B: Regional Population and Building Value Data
General Description of the Region Hazus is a regional earthquake loss estimation model that was developed by the Federal Emergency Management Agency and the National Institute of Building Sciences. The primary purpose of Hazus is to provide a methodology and software application to develop earthquake losses at a regional scale. These loss estimates would be used primarily by local, state and regional officials to plan and stimulate efforts to reduce risks from earthquakes and to prepare for emergency response and recovery. The earthquake loss estimates provided in this report was based on a region that includes 1 county(ies) from the following state(s): Oregon Note: Appendix A contains a complete listing of the counties contained in the region. The geographical size of the region is 465.48 square miles and contains 171 census tracts. There are over 304 thousand households in the region which has a total population of 735,334 people (2010 Census Bureau data). The distribution of population by State and County is provided in Appendix B. There are an estimated 248 thousand buildings in the region with a total building replacement value (excluding contents) of 86,281 (millions of dollars). Approximately 90.00 % of the buildings (and 73.00% of the building value) are associated with residential housing. The replacement value of the transportation and utility lifeline systems is estimated to be 21,993 and 1,587 dollars), respectively. (millions of
Building and Lifeline Inventory Building Inventory Hazus estimates that there are 248 thousand buildings in the region which have an aggregate total replacement value of 86,281 (millions of dollars). Appendix B provides a general distribution of the building value by State and County. In terms of building construction types found in the region, wood frame construction makes up 86% of the building inventory. The remaining percentage is distributed between the other general building types. Critical Facility Inventory Hazus breaks critical facilities into two (2) groups: essential facilities and high potential loss facilities (HPL). Essential facilities include hospitals, medical clinics, schools, fire stations, police stations and emergency operations facilities. High potential loss facilities include dams, levees, military installations, nuclear power plants and hazardous material sites. For essential facilities, there are 10 hospitals in the region with a total bed capacity of 2,172 beds. There are 255 schools, 4 fire stations, 15 police stations and 0 emergency operation facilities. With respect to high potential loss facilities (HPL), there are 0 dams identified within the region. Of these, 0 of the dams are classified as high hazard. The inventory also includes 252 hazardous material sites, 0 military installations and 0 nuclear power plants. Transportation and Utility Lifeline Inventory Within Hazus, the lifeline inventory is divided between transportation and utility lifeline systems. There are seven (7) transportation systems that include highways, railways, light rail, bus, ports, ferry and airports. There are six (6) utility systems that include potable water, wastewater, natural gas, crude & refined oil, electric power and communications. The lifeline inventory data are provided in Tables 1 and 2. The total value of the lifeline inventory is over 23,580.00 (millions of dollars). This inventory includes over 459 kilometers of highways, 397 bridges, 58,309 kilometers of pipes.
Table 1: Transportation System Lifeline Inventory System Component # Locations/ Replacement value # Segments (millions of dollars) Highway Bridges 397 17,896.90 Segments 381 3,102.80 Tunnels 7 16.20 Subtotal 21,015.90 Railways Bridges 8 4.90 Facilities 26 69.20 Segments 197 243.10 Tunnels 0 0.00 Subtotal 317.20 Light Rail Bridges 3 1.30 Facilities 88 234.30 Segments 101 59.20 Tunnels 0 0.00 Subtotal 294.80 Bus Facilities 2 2.50 Subtotal 2.50 Ferry Facilities 0 0.00 Subtotal 0.00 Port Facilities 95 189.70 Subtotal 189.70 Airport Facilities 2 21.30 Runways 4 151.90 Subtotal 173.20 Total 21,993.20
Table 2: Utility System Lifeline Inventory # Locations / Replacement value System Component (millions of dollars) Segments Potable Water Distribution Lines NA 583.10 Facilities 1 37.60 Pipelines 0 0.00 Subtotal 620.70 Waste Water Distribution Lines NA 349.90 Facilities 4 301.00 Pipelines 0 0.00 Subtotal 650.90 Natural Gas Distribution Lines NA 233.20 Facilities 1 1.20 Pipelines 0 0.00 Subtotal 234.50 Oil Systems Facilities 4 0.50 Pipelines 0 0.00 Subtotal 0.50 Electrical Power Facilities 10 1,243.00 Subtotal 1,243.00 Communication Facilities 38 4.30 Subtotal 4.30 Total 2,753.80
Earthquake Scenario Hazus uses the following set of information to define the earthquake parameters used for the earthquake loss estimate provided in this report. Scenario Name Type of Earthquake PHF6_8_sl_wet_cb_run2 Source Fault Name Portland Hills fault Historical Epicenter ID # 819 Probabilistic Return Period NA Longitude of Epicenter -122.70 Latitude of Epicenter 45.52 Earthquake Magnitude 6.80 Depth (Km) 0.00 Rupture Length (Km) 26.55 Rupture Orientation (degrees) 0.00 Attenuation Function West US, Extensional 2008 - Reverse
Building Damage Building Damage Hazus estimates that about 105,711 buildings will be at least moderately damaged. This is over 43.00 % of the buildings in the region. There are an estimated 18,280 buildings that will be damaged beyond repair. The definition of the damage states is provided in Volume 1: Chapter 5 of the Hazus technical manual. Table 3 below summarizes the expected damage by general occupancy for the buildings in the region. Table 4 below summarizes the expected damage by general building type. Table 3: Expected Building Damage by Occupancy None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Agriculture 114 0.16 93 0.13 115 0.20 108 0.37 137 0.75 Commercial 1,179 1.61 1,410 2.02 3,492 5.97 4,530 15.67 7,421 40.59 Education 73 0.10 73 0.10 119 0.20 137 0.47 188 1.03 Government 26 0.03 21 0.03 54 0.09 106 0.37 400 2.19 Industrial 328 0.45 341 0.49 851 1.45 1,125 3.89 1,837 10.05 Other Residential 4,921 6.74 5,061 7.26 5,861 10.01 4,367 15.11 3,683 20.14 Religion 178 0.24 202 0.29 325 0.56 390 1.35 591 3.23 Single Family 66,220 90.66 62,546 89.68 47,706 81.52 18,146 62.77 4,025 22.02 Total 73,038 69,746 58,522 28,909 18,281 Table 4: Expected Building Damage by Building Type (All Design Levels) None Slight Moderate Extensive Complete Count (%) Count (%) Count (%) Count (%) Count (%) Wood 70,443 96.45 67017 96.09 52,018 88.89 20,233 69.99 4,710 25.76 Steel 319 0.44 256 0.37 842 1.44 1,529 5.29 2,937 16.07 Concrete 383 0.52 395 0.57 1,050 1.79 1,488 5.15 2,312 12.65 Precast 278 0.38 219 0.31 737 1.26 1,218 4.21 2,321 12.70 RM 50 0.07 30 0.04 101 0.17 161 0.56 249 1.36 URM 828 1.13 954 1.37 1,842 3.15 2,191 7.58 3,927 21.48 MH 737 1.01 876 1.26 1,933 3.30 2,089 7.23 1,825 9.98 69,746 Total 73,038 58,522 28,909 18,281 *Note: RM URM MH Reinforced Masonry Unreinforced Masonry Manufactured Housing
Essential Facility Damage Before the earthquake, the region had 2,172 hospital beds available for use. On the day of the earthquake, the model estimates that only 205 hospital beds (9.00%) are available for use by patients already in the hospital and those injured by the earthquake. After one week, 26.00% of the beds will be back in service. By 30 days, 59.00% will be operational. Table 5: Expected Damage to Essential Facilities # Facilities Classification Total At Least Moderate Complete With Functionality Damage > 50% Damage > 50% > 50% on day 1 Hospitals 10 9 0 0 Schools 255 65 0 64 EOCs 0 0 0 0 PoliceStations 15 8 0 2 FireStations 4 1 0 2
Transportation and Utility Lifeline Damage Table 6 provides damage estimates for the transportation system. Table 6: Expected Damage to the Transportation Systems System Component Number of Locations Locations/ With at Least With Complete With Functionality > 50 % Segments Mod. Damage Damage After Day 1 After Day 7 Highway Segments 381 0 0 381 381 Bridges 397 133 45 262 301 Tunnels 7 2 0 7 7 Railways Segments 197 0 0 197 197 Bridges 8 0 0 8 8 Tunnels 0 0 0 0 0 Facilities 26 25 0 3 26 Light Rail Segments 101 0 0 101 101 Bridges 3 0 0 3 3 Tunnels 0 0 0 0 0 Facilities 88 71 0 28 88 Bus Facilities 2 2 0 1 2 Ferry Facilities 0 0 0 0 0 Port Facilities 95 89 0 11 93 Airport Facilities 2 1 0 2 2 Runways 4 0 0 4 4 Note: Roadway segments, railroad tracks and light rail tracks are assumed to be damaged by ground failure only. If ground failure maps are not provided, damage estimates to these components will not be computed. Tables 7-9 provide information on the damage to the utility lifeline systems. Table 7 provides damage to the utility system facilities. Table 8 provides estimates on the number of leaks and breaks by the pipelines of the utility systems. For electric power and potable water, Hazus performs a simplified system performance analysis. Table 9 provides a summary of the system performance information.
Table 7 : Expected Utility System Facility Damage # of Locations System Total # With at Least With Complete with Functionality > 50 % Moderate Damage Damage After Day 1 After Day 7 Potable Water 1 0 0 1 1 Waste Water 4 1 0 2 4 Natural Gas 1 0 0 1 1 Oil Systems 4 4 0 0 2 Electrical Power 10 7 0 1 10 Communication 38 34 0 6 38 Table 8 : Expected Utility System Pipeline Damage (Site Specific) System Total Pipelines Number of Number of Length (kms) Leaks Breaks Potable Water 29,155 9821 2455 Waste Water 17,493 7038 1760 Natural Gas 11,662 2019 505 Oil 0 0 0 Table 9: Expected Potable Water and Electric Power System Performance Total # of Number of Households without Service Households At Day 1 At Day 3 At Day 7 At Day 30 At Day 90 Potable Water 126,452 123,556 117,633 80,421 304 304,540 Electric Power 121,683 77,492 34,448 7,979 166
Induced Earthquake Damage Debris Generation Hazus estimates the amount of debris that will be generated by the earthquake. The model breaks the debris into two general categories: a) Brick/Wood and b) Reinforced Concrete/Steel. This distinction is made because of the different types of material handling equipment required to handle the debris. The model estimates that a total of 9.59 million tons of debris will be generated. Of the total amount, Brick/Wood comprises 30.00% of the total, with the remainder being Reinforced Concrete/Steel. If the debris tonnage is converted to an estimated number of truckloads, it will require 383,680 truckloads (@25 tons/truck) to remove the debris generated by the earthquake.
Social Impact Shelter Requirement Hazus estimates the number of households that are expected to be displaced from their homes due to the earthquake and the number of displaced people that will require accommodations in temporary public shelters. The model estimates 41,652 households to be displaced due to the earthquake. Of these, 22,405 people (out of a total population of 735,334) will seek temporary shelter in public shelters. Casualties Hazus estimates the number of people that will be injured and killed by the earthquake. The casualties are broken down into four (4) severity levels that describe the extent of the injuries. The levels are described as follows; Severity Level 1: Injuries will require medical attention but hospitalization is not needed. Severity Level 2: Injuries will require hospitalization but are not considered life-threatening Severity Level 3: Injuries will require hospitalization and can become life threatening if not promptly treated. Severity Level 4: Victims are killed by the earthquake. The casualty estimates are provided for three (3) times of day: 2:00 AM, 2:00 PM and 5:00 PM. These times represent the periods of the day that different sectors of the community are at their peak occupancy loads. The 2:00 AM estimate considers that the residential occupancy load is maximum, the 2:00 PM estimate considers that the educational, commercial and industrial sector loads are maximum and 5:00 PM represents peak commute time. Table 10 provides a summary of the casualties estimated for this earthquake