2008 National Seismic Hazard Maps - Source Parameters

The 2014 Source Parameters are now available.

Interactive Fault Map

Valid search results are available for fault sources located in the states listed below.

Enter Name Fragment to Match Names Enter ID Fragment Above to Match Fault IDs

Fault Parallel Slip Rate (mm/yr) between and
  min value 0.01 max value 34.00

Or Use Spatial Query below to select faults within X miles/kms from designated lat/long

Spatial Query


Faults range from latitudes of 30.47 to 48.92 and longitudes of -88.93 to -125.64

Entered latitudes will be evaluated as positive and longitudes as negative values