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, hurricanes, and tsunamis. 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 earthquakes, hurricanes, floods, and tsunamis. 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 4.2 SP01 Release
Service Pack 01 for Hazus 4.2 was released on May 29, 2018. Download it here.
Specific enhancements include:
- Integration of the Hazus Export Tool
- The ability to incorporate USGS Vs30 Site Soil Characterization to the Earthquake module
- A new view of buildings damaged by count to the Hurricane module
- A new user-friendly interface for incorporating online DEM data in the Flood module
- New capability to include user-defined facilities in the Hurricane module
- Updates of all State databases based on 2018 valuations
- New documentation for design upgrades, including case studies of recent performance and methodology changes
Additionally, defect resolutions addressed include:
- Fixes to shelter parameters (Earthquake and Hurricane), and displaced households (Hurricane)
- Waste water facilities mapping fix (Hurricane)
- Severe losses no longer exceed exposure in coastal analysis (Flood)
- Now able to assign damage functions to essential facilities (Flood)
- When combining Earthquake and Tsunami, damage no longer underestimated for moderate seismic events
- Fixes to the assignment of mapping schemes and building types to Essential Facilities (Hurricane)
The Florida Essential Facilities have been updated with data provided by the Florida Division of Emergency Management's (FDEM) GIS Unit that maintains a state-wide essential facility inventory including all reviewed and submitted facilities by each of the 67 Counties in the State. Metadata are available here: http://geodata.floridadisaster.org
Hazus 4.2 SP01 has the same hardware and software requirements as Hazus 4.2.
Service Pack 01 for Hazus 4.2 was distributed via the Hazus Auto-Update Patching tool.
There is no need for users uninstall Hazus 4.2. If your secure network or firewall prevents the automatic download of the service pack, you can download below.
If you have questions regarding the service pack, please contact the Outreach Team at email@example.com. For technical assistance or installation issues, please contact the Hazus Help Desk at firstname.lastname@example.org.
Domestic and international users may select the "Hazus Application" link below to download the latest version of 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 4.2 and above must be installed with ArcGIS 10.5.1.
NOTE: For new, FULL Hazus installations, you must uninstall any existing versions of Hazus and all Microsoft SQL components from your computer before downloading and ensure that you have ArcGIS 10.5.1 on your computer. As a result of the datum update, any existing State databases must be replaced with the new State data below.
Users wishing to preserve their study regions and transfer them to Hazus 4.2 and above may do so, but only if they are operating on the most recent version of Hazus (4.0). 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 4.0 and then upload them into 4.2 once it is downloaded. For questions or issues, feel free to contact the Hazus Help Desk at email@example.com.
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.
- RECAPTCHA must be correctly entered to complete download.