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USGS Energy and Broadband Solution

NEAR S. COAST OF HONSHU, JAPAN

04/09/05 14:57:18 UTC
Epicenter 33.15N 137.04E

BROADBAND SOURCE PARAMETERS
 Energy Magnitude:
  Me                         7.4
 Radiated Energy:
  Es               2.8*10**15 Nm
  No. of sta: 12  Focal mech.  M                                      
Comment:  Complex earthquake observed on broadband displacmement seismograms.  
A small event is followed by at least one larger event about 14 seconds later.

Explanation of Parameters
Latest USGS Energy Solutions
Source Parameter Search

For more information, contact George Choy, choy@usgs.gov