USGS Energy and Broadband Solution

SAMOA ISLANDS REGION
09/08/30 14:51:32 UTC
Epicenter: 15.22S 172.57W 

  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