Link to USGS home page.
Earthquake Hazards Program

Seismic Hazard Map

Magnitude 7.9 TONGA
Wednesday, May 03, 2006 at 15:26:40 UTC

Seismic Hazard Map World Location
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


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