USGS Energy and Broadband Solution

COLOMBIA
12/09/30 16:31:35 UTC
Epicenter: 1.92N 76.36W

 Energy Magnitude         Me 6.8                                       
Broadband Source Parameters:
 BROADBAND DEPTH:       170.0 km
 BROADBAND FAULT PLANE SOLUTION: 
 NP1:Strike=230 Dip=30 Slip=-105
 NP2:        67     61       -82
 Principal Axes:
  T              Plg=16  Azm=151
  P                  73      358
 RADIATED ENERGY:                                                     
  No. of sta: 19  Focal mech.  F                                      
  Energy       3.7+0.8*10**14 Nm                                      
 COMMENT:  Complex earthquake   
  observed on broadband         
  displacement seismograms,     
  with at least 2 large         
  subevents occurring about     
  4 and 8 seconds after         
  the onset. Depth from         
  synthetics of broadband       
  displacement seismograms      
  based on first event.         
  Apparent Stress      0.31 MPa.

Explanation of Parameters
Latest USGS Energy Solutions
Source Parameter Search

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