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KEP. MENTAWAI REGION, INDONESIA

08/02/25 18:06:05 UTC
Epicenter 2.36S 99.92E

  Me   6.4
Broadband Source Parameters:
 BROADBAND DEPTH:        25.0 km
 RADIATED ENERGY
  No. of sta:  8  Focal mech.  M
  Energy       8.4+2.4*10**13 Nm
 COMMENT:  Complex earthquake
  observed on broadband
  displacement seismograms.  A
  large event is followed by a
  smaller one about 3 seconds
  later.  Depth from synthetics
  of broadband displacement
  seismograms based on first
  large 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