USGS Energy and Broadband Solution

OFF W COAST OF NORTHERN SUMATRA
12/04/11 08:38:37 UTC
Epicenter: 2.31N 93.06E

  Me   8.7                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        20.0 km
 RADIATED ENERGY                                                      
  No. of sta: 13  Focal mech.  C                                      
  Energy       2.7+0.6*10**17 Nm                                      
 COMMENT:  Depth from synthetics
  of broadband displacement     
  seismograms.

Explanation of Parameters
Latest USGS Energy Solutions
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For more information, contact George Choy, choy@usgs.gov