USGS/SLU Regional Moment Solution

13/02/01 21:03:50.00

Epicenter:  65.515 -144.520
MW 3.9

USGS/SLU REGIONAL MOMENT TENSOR
Depth  15         No. of sta: 41
Moment Tensor;   Scale 10**15 Nm
  Mrr= 0.12       Mtt=-0.72
  Mpp= 0.60       Mrt= 0.31
  Mrp= 0.63       Mtp=-0.41
 Principal axes:
  T  Val=  1.05  Plg=32  Azm=263
  N       -0.00      47       37
  P       -1.05      24      156

Best Double Couple:Mo=1.1*10**15
 NP1:Strike=297 Dip=48 Slip= 173
 NP2:        31     85        42

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