FEMA Flood Map Service Center: Hazus
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:
- Stay connected with the Hazus Community by joining your local Hazus User Group
- Sign up for Hazus Training from FEMA's Emergency Management Institute
- Find technical support at the Hazus Help Desk
Hazus 4.0 Release
On March 20, 2017, the Hazus Team deployed the Hazus Tsunami Module as part of the Hazus 4.0 release. This release is a full-versioned software release with a number of key highlights, including:
- Territory Analysis: This release represents the first time that analysis will be available for U.S. territories (Guam, American Samoa, Commonwealth of Northern Mariana Islands, and U.S. Virgin Islands).
- New Point Format: The Hazus General Building Stock (GBS) for the Tsunami release will use a new National Structure Inventory (NSI) point format (details in User Release Notes available with download).
- Case Studies: The Tsunami Module will require user-provided data, so the Hazus Team has provided five case study datasets for users, which will be available on the MSC download site.
- Two Types of Damage Analysis: Users will be able to run both near-source (Earthquake + Tsunami) and distant-source (Tsunami only) damage analysis.
A patch is now available for the Hazus 4.0 Hurricane Wind model, fixing two defects: underestimation of losses for manufactured housing, and overestimation of losses for large and medium hospital facilities. Click HERE to download the patch. To install the patch, follow these steps:
- Download the patch and unzip to your local machine in the C:\ProgramFiles(x86)\Hazus-MH folder
- Navigate to the folder where the patch was unzipped. The extracted files will be in a folder called "HuPatch_v2." Please note, some extractors will create a second subfolder with the same name, and the patch files will be located there.
- Open the folder HuPatch_v2 which contains the patch files.
- Double-click on the executable file called HuPatch40SP1 to launch the patch. A message will display when the patch installation has successfully completed.
Please note: If Hazus is not installed in C:\ProgramFiles(x86)\Hazus-MH, or is only a partial install, a message will display that Hazus cannot be found on the machine. If this occurs, please contact the Hazus Help Desk for assistance in deploying the patch.
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 3.2 must be installed with ArcGIS 10.4.
NOTE: You must uninstall any existing versions of Hazus and all Microsoft SQL components from your computer before downloading and ensure that you have ArcGIS 10.4 on your computer. When installing ArcGIS 10.4, a patch must be applied for Hazus 4.0 to properly display ArcGIS attribute tables from the ArcMap Table of Contents. Additional details are available in the User Release Notes as part of the Hazus Installation package. The patch is available at: http://support.esri.com/download/7427. Please read the Getting Started Guide in the HAZUS_APP folder from the MSC download for further details..
Users wishing to preserve their study regions and transfer them to Hazus 4.0 may do so, but only if they are operating on the most recent version of Hazus (3.2). 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 3.2 and then upload them into 4.0 once it is downloaded. For questions or issues, feel free to contact the Hazus Help Desk at firstname.lastname@example.org.
For the Tsunami Module, users must supply their own data for analysis. To assist in preparing this data, the Hazus Team has provided five case study datasets for users, which are available at the bottom of this page for download through a zip file. Users can model their own datasets after these samples.
If you require assistance downloading the software, please email the FEMA Map Information eXchange (FMIX) at FEMAMapSpecialist@riskmapcds.com.