Earthquake Density Maps
Magnitude 3.3 NEAR COAST OF SOUTH AUSTRALIA
Tuesday, October 18, 2011 at 15:52:25 UTC
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Average number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater
Shallow Earthquakes: Depth 0-70 km
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
