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Earthquake Hazards Program
USGS Energy and Broadband Solution

SAMOA ISLANDS REGION

09/08/30 14:51:33 UTC
Epicenter 15.16S 172.62W

  Me   6.4                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        11.0 km
 RADIATED ENERGY                                                      
  No. of sta: 15  Focal mech.  M                                      
  Energy       8.4+2.1*10**13 Nm                                      
 COMMENT:  Depth from synthetics
  of broadband displacement     
  seismograms.                  

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


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