Us Seismic Design Maps

Author(s) structural engineers association of california, california office of statewide health planning and development. Periodic revisions of these maps incorporate the results of new research. The five seismic zones, each of which covered broad regions of the u.s., were based on the historic occurrence of damaging earthquakes, or the lack thereof;

Earthquakes like the 1994 northridge quake have managed to teach new lessons and prompted changes from formerly learned lessons. Buildings, bridges, highways, and utilities built to. Geological survey?s maps of earthquake shaking hazards provide information essential to creating and updating the seismic design provisions of building codes and insurance rates used in the united states.

Then, the usgs calculates values of seismic design parameters based on usgs hazard values and in accordance with design code procedures.

Last updated august 3, 2020 Louis chicago jonesboro kansas city wichita norman denver ogden rexburg san jose san diego washington d.c. The application computes earthquake ground motion design parameters compatible with the international building code and other seismic design provisions. Periodic revisions of these maps incorporate the results of new research.