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Earthquake Hazards Program
USGS Energy and Broadband Solution

SAMOA ISLANDS REGION

09/09/29 17:48:19 UTC
Epicenter 15.56S 172.30W

  Me   8.1
Broadband Source Parameters:
 BROADBAND DEPTH:        18.0 km
 RADIATED ENERGY
  No. of sta:  6  Focal mech.  C
  Energy       2.8+0.6*10**16 Nm

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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