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SOUTHERN SUMATRA, INDONESIA

07/09/12 11:10:24 UTC
Epicenter 4.37S 101.56E

  Me   8.0                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        34.0 km
 RADIATED ENERGY                                                      
  No. of sta: 10  Focal mech.  C                                      
  Energy       2.6+0.6*10**16 Nm                                      
 COMMENT:   Complex earthquake  
  observed on broadband         
  displacement seismograms.  A  
  small event is followed by at 
  least one larger event about  
  10 seconds later.  Depth      
  based on first large event.   

Explanation of Parameters
Latest USGS Energy Solutions
Source Parameter Search

For more information, contact George Choy, choy@usgs.gov

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver