USGS Centroid Moment Solution

VANUATU

 11/03/17 02:47:59.59
 VANUATU                         
 Epicenter: -17.339  167.743
 MW 6.3

 USGS CENTROID MOMENT TENSOR
 11/03/17 02:48:20.59
 Centroid:  -16.825  167.337
 Depth  30         No. of sta: 81
 Moment Tensor;   Scale 10**18 Nm
   Mrr= 2.51       Mtt=-0.11
   Mpp=-2.41       Mrt= 0.59
   Mrp=-1.63       Mtp= 0.33
  Principal axes:
   T  Val=  3.07  Plg=72  Azm= 61
   N       -0.09       5      168
   P       -2.99      17      260

 Best Double Couple:Mo=3.0*10**18
  NP1:Strike=358 Dip=28 Slip= 101
  NP2:       165     62        84
                                      
                                      

Moment Tensor Solution
The figure above shows a visual representation of the style of faulting (focal mechanism) derived from the estimated moment tensor. Shaded areas show quadrants of the focal sphere in which the P-wave first-motions are away form the source, and unshaded areas show quadrants in which the P-wave first-motions are toward the source. The dots represent the axis of maximum compressional strain (in black, called the "P-axis") and the axis of maximum extensional strain (in white, called the "T-axis") resulting from the earthquake.

Moment Tensor Solution