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USGS Energy and Broadband Solution

SAMOA ISLANDS REGION

06/09/28 06:22:11 UTC
Epicenter 16.55S 172.05W

  Me   6.7                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        28.0 km
 BROADBAND FAULT PLANE SOLUTION: 
 NP1:Strike=180 Dip=60 Slip= -90
 NP2:         0     30       -90
 Principal Axes:
  T              Plg=15  Azm=270
  P                  75       90
 RADIATED ENERGY                                                      
  No. of sta: 15  Focal mech.  F                                      
  Energy       2.9+0.7*10**14 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