Magnitude 4.0 SEA OF OKHOTSK
Monday, July 30, 2007 at 00:06:40 UTC
Earthquake Density Maps
Earthquake Density
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Average number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater
Deep Earthquakes: Depth 300 km and greater
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
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Average number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater
All Depths
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Global Earthquake Density Maps
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
