USGS Energy and Broadband Solution

OFFSHORE VALPARAISO, CHILE
12/04/17 03:50:16 UTC
Epicenter: 32.70S 71.48W

  Me   6.2                                                             
Broadband Source Parameters:
 BROADBAND DEPTH:        29.0 km
 BROADBAND FAULT PLANE SOLUTION: 
 NP1:Strike=175 Dip=65 Slip=  90
 NP2:       355     25        90
 Principal Axes:
  T              Plg=70  Azm= 85
  P                  20      265
 RADIATED ENERGY                                                      
  No. of sta: 18  Focal mech.  F                                      
  Energy       4.5+0.8*10**13 Nm                                      
 COMMENT:   Complex earthquake, 
  with two events about         
  2 seconds apart, observed on  
  broadband displacement        
  seismograms.  Depth from      
  synthetics of broadband       
  displacement records based on 
  first event.                  

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