USGS Body-Wave Moment Tensor Solution


12/10/14 04:58:07.60

Epicenter:  -7.192  156.073
MW 5.8

Depth  37         No. of sta: 30
Moment Tensor;   Scale 10**17 Nm
  Mrr= 6.34       Mtt=-4.72
  Mpp=-1.62       Mrt=-0.77
  Mrp= 0.45       Mtp= 3.13
 Principal axes:
  T  Val=  6.40  Plg=86  Azm=209
  N        0.32       0      302
  P       -6.72       4       32

Best Double Couple:Mo=6.6*10**17
 NP1:Strike=302 Dip=49 Slip=  90
 NP2:       122     41        90

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