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Hazus

Hazus is a nationally applicable standardized methodology that contains models for estimating potential losses from earthquakes, floods, tsunamis and hurricanes.

This page provides news and resources to help you use Hazus to support risk-informed decision making efforts.

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Download Hazus Today

Users can download the Hazus software for free from the FEMA Flood Map Service Center.

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User and Technical Manuals

The Hazus User Manuals support model functionality, while the Hazus Technical Manuals provide detailed information about how the models work and how to generate loss estimates. See all manuals.

Connect with the Hazus Team

Have any interesting Hazus research or success stories to share? Want to get involved with the Hazus program by attending the Hazus Quarterly Webinar?

Email the Hazus Outreach Team with questions, comments, or to be added to the monthly call invitation.

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Sign up to receive email updates regarding the Hazus program, training opportunities and conferences.

Hazus: FEMA's Methodology For Estimating Potential Losses From Disasters

Hazus uses Geographic Information Systems (GIS) technology to estimate physical, economic, and social impacts of disasters. It graphically illustrates the limits of identified high-risk locations due to earthquake, hurricane, flood and tsunami. Users can then visualize the spatial relationships between populations and other more permanently fixed geographic assets or resources for the specific hazard being modeled, a crucial function in the pre-disaster planning process.

Hazus is used for mitigation and recovery, as well as preparedness and response. Government planners, GIS specialists, and emergency managers use Hazus to determine losses and the most beneficial mitigation approaches to take to minimize them. Hazus can be used in the assessment step in the mitigation planning process, which is the foundation for a community's long-term strategy to reduce disaster losses and break the cycle of disaster damage, reconstruction, and repeated damage. Being ready will aid in recovery after a natural disaster.

Potential loss estimates analyzed in Hazus include:

  • Physical damage to residential and commercial buildings, schools, critical facilities, and infrastructure
  • Economic loss, including lost jobs, business interruptions, repair, and reconstruction costs
  • Social impacts, including estimates of shelter requirements, displaced households, and population exposed to scenario floods, earthquakes, and hurricanes, and tsunamis

As the number of Hazus users continues to increase, so do the types of uses. Increasingly, Hazus is being used by states and communities in support of risk assessments that perform economic loss scenarios for certain natural hazards and rapid needs assessments during hurricane response. Other communities are using Hazus to increase hazard awareness.

Technical Assistance

Technical assistance is available by emailing the Hazus Help Desk.