Seismic Hazard Map
Magnitude 4.3 OFF THE COAST OF NORTHERN CALIFORNIA
Wednesday, February 20, 2013 at 13:16:09 UTC
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Global Seismic Hazard Assessment Program -GSHAP
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
