USGS Energy and Broadband Solution

COSTA RICA
12/09/05 14:42:08 UTC
Epicenter: 10.08N 85.30W

  Me   7.0                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        35.0 km
 BROADBAND FAULT PLANE SOLUTION: 
 NP1:Strike=110 Dip=65 Slip=  90
 NP2:       290     25        90
 Principal Axes:
  T              Plg=70  Azm= 20
  P                  20      200
 RADIATED ENERGY                                                      
  No. of sta: 20  Focal mech.  F                                      
  Energy       6.5+0.9*10**14 Nm                                      
 COMMENT:  Complex earthquake   
  observed on broadband         
  displacement records, with    
  one large event  occurring    
  about 4 seconds after         
  the onset.  Depths 35 and 31  
  kms, respectively, from       
  synthetics of broadband       
  displacement seismograms.     

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