USGS Centroid Moment Solution


12/10/30 02:49:01.47

Epicenter:  52.323 -131.918
MW 6.2

12/10/30 02:49:26.40
Centroid:  52.272 -131.955
Depth  10         No. of sta: 55
Moment Tensor;   Scale 10**18 Nm
  Mrr=-2.34       Mtt= 1.53
  Mpp= 0.81       Mrt= 0.03
  Mrp= 0.54       Mtp=-1.09
 Principal axes:
  T  Val=  2.34  Plg= 4  Azm=217
  N        0.10      10      307
  P       -2.44      79      108

Best Double Couple:Mo=2.4*10**18
 NP1:Strike=136 Dip=49 Slip= -76
 NP2:       296     42      -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