Seismic Hazard Map
Magnitude 4.8 TONGA
Monday, January 10, 2011 at 10:21:44 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