USGS Body-Wave Moment Tensor Solution


12/11/17 02:51:24.11

Epicenter: -15.026  167.426
MW 5.7

Depth 116         No. of sta: 34
Moment Tensor;   Scale 10**17 Nm
  Mrr= 3.98       Mtt= 0.71
  Mpp=-4.69       Mrt=-0.50
  Mrp= 1.34       Mtp=-0.38
 Principal axes:
  T  Val=  4.27  Plg=78  Azm=225
  N        0.64       9        2
  P       -4.91       8       93

Best Double Couple:Mo=4.6*10**17
 NP1:Strike=355 Dip=54 Slip=  79
 NP2:       194     37       105

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 from 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