HAZUS-MH MR3 FAQs: Earthquake Model Analysis Parameters
What are the underlying assumptions in HAZUS for assigning the different default seismic design level for the regions in the U.S.?
The assignment of a seismic design level is strictly based on the National Earthquake Hazards Reduction Program (NEHRP) classification of U.S. counties. If a county has a:
-
NEHRP classification of 1, 2, 3 or 4, the seismic design level is assumed to be "low."
-
NEHRP class of 5 or 6, the seismic design level is assumed to be "moderate."
-
NEHRP class equal to 7, then the seismic design level is assumed to be "high."
In addition, building quality parameters have been combined with seismic design levels to produce a complete design level as indicated below:
-
High - Code
-
Moderate - Code
-
Low - Code
-
Pre - Code
-
Special High - Code
-
Special Moderate - Code
-
Special Low - Code
For additional information, the HAZUS Earthquake Technical Manual, as well as other HAZUS Manuals and guidance materials are available for download from the HAZUS Resources.
Need Additional Help?
Email: HAZUSGenHelp@nibs.org for general questions about HAZUS
HAZUSQuakeHelp@pbsj.com for Earthquake Model questions
Last Modified: Tuesday, 06-Nov-2007 17:05:09 EST
Email Updates