HAZUS-Multi Hazard Eathquake Model

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The Hazus-Multi Hazard (Hazus-MH) earthquake model estimates damage and loss to buildings, lifelines and essential facilities from scenario and probabilistic earthquakes, including:

  • Ground shaking and ground failure
  • Estimates of casualties
  • Displaced households and shelter requirements
  • Damage and loss of use of essential facilities
  • Estimated cost of repairing damaged buildings
  • Quantity of debris
  • Damage to buildings
  • Direct costs associated with loss of function (e.g., loss of business revenue)

Earthquake Model Performance

  • Hazus-MH is a regional loss estimation tool. Results are most accurate when aggregated on a county or regional scale
  • Modeled results depend on accurate inventories. The more complete the inventories, the more accurate the results
  • Because of their complexity, it is more difficult to estimate losses to lifelines (utility and transportation) than buildings

Use of Earthquake Loss Estimates

Hazus-MH displays the analysis both through GIS maps and tables. This forecasting capability enables users to carry out a wide range of analyses.

  • Emergency managers can use Hazus-MH to develop scenarios to drive exercises and support emergency operations plans
  • State Hazard Mitigation Officials can use information on costs and benefits of specific mitigation measures and to use analysis for risk assessments for state and local hazard mitigation plans
  • Shelter managers can use estimates of displaced households and shelter requirements to scale mass care mission requirements
  • Utility company representatives can use information on the locations and duration of potential utility outages in setting restoration priorities and committing necessary personnel and other resources

New Features in Hazus-MH 2.1

  • Menu options in the user interface of the three models in Hazus-MH (Earthquake, Flood & Hurricane) have been adjusted to provide greater consistency.
  • Occupancy Mapping Schemes have been updated for the Earthquake Model.
  • The Earthquake Ground Motion Model has been updated to use the latest USGS Next Generation Attenuation (NGA) functions.
  • The Earthquake Model now includes a feature to analyze study regions greater than the 8 GB limit of SQL Server Express.

Hazus-MH Earthquake Model Applications

Since the Hazus-MH earthquake model was first used in 1995, there has been a wide range of applications by federal, state, local and private sectors users.

Last Updated: 
07/24/2014 - 16:00
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