HAZUS-MH Software Patches

NEW! HAZUS-MH MR3 Patch 2

The HAZUS-MH MR3 Patch 2 makes significant adjustments and incorporates improvements in the Flood, Earthquake and Hurricane models, and the HAZUS-MH Shell. Note: operation of Patch 2 requires installation of Service Pack 5 (ArcGIS 9.2 should already have been installed as part of the HAZUS-MH MR3 installation).

Highlights include:

Flood Model, MR3 Patch 2:

Additional information on Patch 2 can also be found in the FAQ section

Hurricane Model, MR3 Patch 2:

Earthquake Model, MR3 Patch 2:

Note: The Earthquake Model might be overestimating liquefaction related losses, especially for moderate-sized (Mwe 6.0 and smaller) earthquake scenarios. A fix is planned for Patch 3, which is expected to be released in Fall 2008. Please contact Tech Support with any questions.

HAZUS Shell, MR3 Patch 2:

Read the Detailed Release Notes for MR3 Patch 2

Download MR3 Patch 2

Additional information on HAZUS-MH MR3 Patch 2 can also be found in the HAZUS FAQ section.

Back To Top

HAZUS MR3 Patch 1

The HAZUS-MH MR3 Patch 1 makes adjustments and incorporates improvements in the Flood and Earthquake models as outlined below. The setup link will guide the user through the process.

Flood Model

Earthquake Model


HAZUS Shell


Download HAZUS-MH MR3 Patch

Back To Top

HAZUS-MH MR2 Patch 2

The HAZUS-MH MR2 Patch 2 resolves an extensive list of Flood Model bugs that have been identified by HAZUS users and the model developers. The improvements affect  inventory, hazard characterization, hydrology and hydraulics, coastal analysis, the analysis used for generating results, results documentation, thematic mapping and the Flood Information Tool (FIT). Please follow instructions detailed in the readme.txt file.

The below files are available for download from the FEMA Library:

Back To Top

HAZUS-MH MR2 Patch 1

HAZUS-MH MR2 Patch 1 provides helpful corrections to HAZUS and the Flood and Earthquake Models in response to user input. For the Flood Model, Patch 1 will improve the reliability of the hydrology and hydraulics functions in the riverine analysis by reducing the number of "problem reaches", correcting errors in discharge determinations, and resolving some cases of hanging within the underlying ArcGIS software. For the Earthquake Model, Patch 1 provides for the consistent importing of study regions from MR1 into MR2, and facilitates the creation of new building types based on existing masonry building types.

In addition, Patch 1 ensures that the Site Specific import dialog will transition correctly to the screen for selecting the Source Data Set for the flood, earthquake, and hurricane hazards and enables Site Specific inventory deletion for study regions imported from MR1 and MR2.

The below compressed file is available for download.

Back To Top

HAZUS-MH MR1 requires ESRI ArcGIS 9.0 SP1 to run

Prior to February 28, 2005, copies of HAZUS-MH MR1 shipped to requestors from the FEMA Distribution Center included an Evaluation Edition of ArcGIS 9.0 and a CD containing the ESRI Service Pack 1. ESRI recently determined that these Evaluation Editions would not function with the Service Pack 1.

To resolve this problem, ESRI has provided a new Evaluation Edition of ArcGIS 9.0 that allows the installation of the SP1 CD needed to run HAZUS-MH MR1. Users can request the new Evaluation Edition and the SP1 CD by selecting this option on the HAZUS-MH MR1 order form and submitting the order to the FEMA Distribution Center.

Beginning February 28, 2005, the FEMA Distribution Center will no longer automatically include the Evaluation Edition of ArcGIS 9.0 and SP1 CD with each order filled. Instead, requestors who wish to evaluate the ArcGIS software needed to run HAZUS-MH MR1 should specifically request the new Evaluation Edition of ArcGIS 9.0 and SP1 CD by selecting that option on the HAZUS-MH MR1 order form.

For more information about obtaining ArcGIS 9.0 software and how to order it, please go to the "Attention HAZUS Users" section of the ESRI web site.

Back To Top

Last Modified: Monday, 04-Aug-2008 10:51:48 EDT