USGS Body-Wave Moment Tensor Solution


12/11/27 02:59:05.99

Epicenter:  -2.946  129.209
MW 5.5

Depth  19         No. of sta: 25
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.72       Mtt=-1.97
  Mpp= 1.25       Mrt=-0.60
  Mrp= 1.21       Mtp= 0.92
 Principal axes:
  T  Val=  2.25  Plg=37  Azm=276
  N        0.23      49      129
  P       -2.48      17       19

Best Double Couple:Mo=2.4*10**17
 NP1:Strike=324 Dip=78 Slip= 140
 NP2:        64     51        16

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