USGS/SLU Regional Moment Solution

13/01/21 20:00:16.32

Epicenter:  62.700 -149.519
MW 4.1

USGS/SLU REGIONAL MOMENT TENSOR
Depth  81         No. of sta: 29
Moment Tensor;   Scale 10**15 Nm
  Mrr= 0.24       Mtt= 0.85
  Mpp=-1.09       Mrt= 0.55
  Mrp= 0.17       Mtp= 1.28
 Principal axes:
  T  Val=  1.70  Plg=21  Azm=334
  N        0.03      69      146
  P       -1.73       3      243

Best Double Couple:Mo=1.7*10**15
 NP1:Strike=111 Dip=77 Slip=  17
 NP2:        17     73       167

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