Historic Seismicity

Magnitude 6.8 TONGA

Tuesday, November 24, 2009 at 12:47:16 UTC

Historic Seismicity World Location
Magnitude / Depth Legend
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green


Seismicity in 2009
Magnitude / Depth Legend
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green


Magnitude 7 and Greater Earthquakes
Magnitude / Depth Legend
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