USGS Centroid Moment Solution


12/10/20 23:00:32.55

Epicenter: -13.565  166.600
MW 6.2

12/10/20 23:00:55.90
Centroid: -13.330  166.304
Depth  45         No. of sta: 18
Moment Tensor;   Scale 10**18 Nm
  Mrr= 1.77       Mtt= 0.20
  Mpp=-1.97       Mrt=-0.74
  Mrp= 0.72       Mtp=-1.19
 Principal axes:
  T  Val=  2.37  Plg=59  Azm=211
  N        0.17      30       19
  P       -2.53       5      112

Best Double Couple:Mo=2.5*10**18
 NP1:Strike=357 Dip=57 Slip=  53
 NP2:       231     48       133

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