USGS/SLU Regional Moment Solution

13/01/20 22:03:04.16

Epicenter:  63.289 -151.359
MW 4.1

USGS/SLU REGIONAL MOMENT TENSOR
Depth  16         No. of sta: 46
Moment Tensor;   Scale 10**15 Nm
  Mrr= 0.20       Mtt=-1.35
  Mpp= 1.15       Mrt= 0.03
  Mrp= 0.63       Mtp=-1.18
 Principal axes:
  T  Val=  1.82  Plg=20  Azm=250
  N        0.03      69       47
  P       -1.85       8      157

Best Double Couple:Mo=1.8*10**15
 NP1:Strike= 25 Dip=82 Slip=  20
 NP2:       292     71       171

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