Seismic Hazard Map
Magnitude 4.8 SAMOA ISLANDS REGION
Wednesday, May 11, 2011 at 01:07:33 UTC
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
