FEMA’s Methodology for Estimating Potential Losses from Disasters

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

For more information about the Hazus program, please visit the Hazus home page. From there, you can learn how to:

Hazus Modernization

As part of an effort to continue modernizing Hazus, we are excited to announce the release of Hazus-MH 3.1. This release is a full-versioned software release that implements 6 enhancements and addresses 21 defects. Some of the major changes include:

  • Installation process was improved to separate Hazus-MH application download from SQL download, preventing SQL errors that users have encountered while installing previous Hazus versions
  • Average Annualized Loss (AAL) analysis is now available for full suite of return periods for User Defined Facilities (UDF). After running General Building Stock (GBS) UDF analysis, users can now go to Analysis -> Average Annualized Loss and select option for UDF. A report is generated under Results -> Summary Reports -> Buildings tab
  • SLOSH basins with updated vertical datum were obtained from the National Oceanic and Atmospheric Administration (NOAA) and incorporated with the Hazus Surge to reduce analysis failures. SLOSH basins also no longer fail for counties where the Federal Information Processing Standard (FIPS) code begins with "0"

Download Hazus

Domestic and international users may select the "Hazus-MH Application" link below to download the software. As an alternative, you may opt to manage the download and select the items you wish to obtain. Internet Explorer and Mozilla Firefox web browsers are recommended to perform the download. Google Chrome is not supported. Hazus-MH 3.1 must be installed with ArcGIS 10.2.2.

Since this release is a major version update for the Hazus software, users of any older Hazus versions will need to uninstall Hazus on their computers prior to installation.

NOTE: The instructions for uninstalling your old version of Hazus and installing Hazus-MH 3.1 have changed. Please read the Getting Started Guide in the HAZUS_APP folder from the MSC download for details. Users must check if their license information is visible by opening ArcGIS Administrator after uninstalling Hazus-MH 3.0 from their computer. A blank screen in ArcGIS Administrator denotes a corrupt license. In this situation, a user must go to Windows Control Panel -> Uninstall Programs and click on Uninstall/Change for ArcGIS, then select the 'Repair' radio button and follow the on-screen procedures.

Users wishing to preserve their study regions and transfer them to Hazus 3.1 may do so, but only if they have been operating on the most recent version of Hazus (3.0). They will be able to follow the steps outlined in the Getting Started Guide available with the download to extract their study regions in Hazus-MH 3.0 and then upload them into 3.1 once it is downloaded.

If you require assistance downloading the software, please email the FEMA Map Information eXchange (FMIX) at FEMAMapSpecialist@riskmapcds.com.

The entire US state dataset and individual state datasets, which have now been updated to reflect Census 2010 data, are available for download below. Note the datasets are not available for delivery outside of the US.

State Direct Download Managed Download
Alabama DL:Direct Download Hazus Alabama dataset
Alaska DL:Direct Download Hazus Alaska dataset
Arizona DL:Direct Download Hazus Arizona dataset
Arkansas DL:Direct Download Hazus Arkansas dataset
California DL:Direct Download Hazus California dataset
Colorado DL:Direct Download Hazus Colorado dataset
Connecticut DL:Direct Download Hazus Connecticut dataset
Delaware DL:Direct Download Hazus Delaware dataset
District of Columbia DL:Direct Download Hazus District of Columbia dataset
Florida DL:Direct Download Hazus Florida dataset
Georgia DL:Direct Download Hazus Georgia dataset
Hawaii DL:Direct Download Hazus Hawaii dataset
Idaho DL:Direct Download Hazus Idaho dataset
Illinois DL:Direct Download Hazus Illinois dataset
Indiana DL:Direct Download Hazus Indiana dataset
Iowa DL:Direct Download Hazus Iowa dataset
Kansas DL:Direct Download Hazus Kansas dataset
Kentucky DL:Direct Download Hazus Kentucky dataset
Louisiana DL:Direct Download Hazus Louisiana dataset
Maine DL:Direct Download Hazus Maine dataset
Maryland DL:Direct Download Hazus Maryland dataset
Massachusetts DL:Direct Download Hazus Massachusetts dataset
Michigan DL:Direct Download Hazus Michigan dataset
Minnesota DL:Direct Download Hazus Minnesota dataset
Mississippi DL:Direct Download Hazus Mississippi dataset
Missouri DL:Direct Download Hazus Missouri dataset
Montana DL:Direct Download Hazus Montana dataset
Nebraska DL:Direct Download Hazus Nebraska dataset
Nevada DL:Direct Download Hazus Nevada dataset
New Hampshire DL:Direct Download Hazus New Hampshire dataset
New Jersey DL:Direct Download Hazus New Jersey dataset
New Mexico DL:Direct Download Hazus New Mexico dataset
New York DL:Direct Download Hazus New York dataset
North Carolina DL:Direct Download Hazus North Carolina dataset
North Dakota DL:Direct Download Hazus North Dakota dataset
Ohio DL:Direct Download Hazus Ohio dataset
Oklahoma DL:Direct Download Hazus Oklahoma dataset
Oregon DL:Direct Download Hazus Oregon dataset
Pennsylvania DL:Direct Download Hazus Pennsylvania dataset
Rhode Island DL:Direct Download Hazus Rhode Island dataset
South Carolina DL:Direct Download Hazus South Carolina dataset
South Dakota DL:Direct Download Hazus South Dakota dataset
Tennessee DL:Direct Download Hazus Tennessee dataset
Texas DL:Direct Download Hazus Texas dataset
Utah DL:Direct Download Hazus Utah dataset
Vermont DL:Direct Download Hazus Vermont dataset
Virginia DL:Direct Download Hazus Virginia dataset
Washington DL:Direct Download Hazus Washington dataset
West Virginia DL:Direct Download Hazus West Virginia dataset
Wisconsin DL:Direct Download Hazus Wisconsin dataset
Wyoming DL:Direct Download Hazus Wyoming dataset
All States Part 1 (AL to MO) DL:Direct Download Hazus All States Part 1 (AL to MO) dataset
All States Part 2 (MT to WY) DL:Direct Download Hazus All States Part 2 (MT to WY) dataset
Puerto Rico DL:Direct Download Hazus Puerto Rico dataset

Puerto Rico data was developed by a third party and is not supported by FEMA or the Hazus Program at this time. The data is available only for use with version 2.1 of the Hazus software, which requires version 10.0 of ArcGIS. This version of the dataset is also based on 2000 Census Data, and no additional documentation is available. If you need assistance in obtaining a copy of Hazus 2.1, please contact theHazus Help Desk at hazus-outreach@riskmapcds.com

Additional Resources