Earthquake Location
Magnitude 4.7 SOUTHWEST OF SUMATRA, INDONESIA
Sunday, October 23, 2011 at 05:17:43 UTC
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green
Map of INDIAN OCEAN
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
