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Earthquake Hazards Program
USGS Energy and Broadband Solution

KEP. MENTAWAI REGION, INDONESIA

08/02/25 08:36:35 UTC
Epicenter 2.37S 100.02E

  Me   6.9
Broadband Source Parameters:
 BROADBAND DEPTH:        25.0 km
 RADIATED ENERGY
  No. of sta: 10  Focal mech.  M
  Energy       5.8+1.8*10**14 Nm
 COMMENT:  Complex earthquake
  observed on broadband
  displacement seismograms, with
  at least one larger event
  occurring about 4 s after the
  onset.  Depth from synthetics
  of broadband displacement
  seismgorams based on larger
  event.

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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