USGS Energy and Broadband Solution

COOK STRAIT, NEW ZEALAND
13/07/21 05:09:31 UTC
Epicenter: 41.71S 174.44E

 Energy Magnitude         Me 6.9                                       
Broadband Source Parameters:
 BROADBAND DEPTH:        17.0 km
 BROADBAND FAULT PLANE SOLUTION: 
 NP1:Strike=315 Dip=75 Slip=  35
 NP2:       215     56       162
 Principal Axes:
  T              Plg=35  Azm=180
  P                  12       81
 RADIATED ENERGY:                                                     
  No. of sta: 10  Focal mech.  F                                      
  Energy       4.3+1.2*10**14 Nm                                      
 COMMENT:  Depth from synthetics
  of broadband displacement     
  seismograms.                  
  Apparent Stress       1.62 MPa

Explanation of Parameters
Latest USGS Energy Solutions
Source Parameter Search

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