USGS Energy and Broadband Solution

QUEEN CHARLOTTE ISLANDS REGION
12/10/28 03:04:10 UTC
Epicenter: 52.77N 131.93W

 Energy Magnitude         Me 7.6                                       
Broadband Source Parameters:
 BROADBAND DEPTH:        20.0 km
 RADIATED ENERGY:                                                     
  No. of sta: 29  Focal mech.  F                                      
  Energy       5.5+0.9*10**15 Nm                                      
 COMMENT:  Complex earthquake   
  observed on broadband         
  displacement seismograms.  A  
  small event is followed by at 
  least one larger event        
  about 13 seconds later. Depth 
  from synthetics of broadband  
  displacement seismograms      
  based on larger event.        
  Apparent Stress       0.29 MPa

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