USGS Centroid Moment Solution


11/10/21 17:57:16.81

Epicenter: -29.003 -176.188
MW 7.4

11/10/21 17:57:41.29
Centroid: -28.563 -175.844
Depth  47         No. of sta: 205
Moment Tensor;   Scale 10**20 Nm
  Mrr= 1.44       Mtt=-0.27
  Mpp=-1.17       Mrt= 0.20
  Mrp= 0.22       Mtp=-0.66
 Principal axes:
  T  Val=  1.47  Plg=84  Azm=325
  N        0.08       3      208
  P       -1.55       6      118

Best Double Couple:Mo=1.5*10**20
 NP1:Strike= 31 Dip=51 Slip=  94
 NP2:       205     40        86

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