USGS Centroid Moment Solution


11/09/18 12:40:51.55

Epicenter:  27.740   88.113
MW 6.9

11/09/18 12:41:18.09
Centroid:  28.050   88.163
Depth  35         No. of sta: 66
Moment Tensor;   Scale 10**19 Nm
  Mrr=-0.45       Mtt=-2.36
  Mpp= 2.81       Mrt= 0.32
  Mrp=-0.45       Mtp=-0.51
 Principal axes:
  T  Val=  2.93  Plg= 8  Azm= 84
  N       -0.48      78      309
  P       -2.45       8      175

Best Double Couple:Mo=2.7*10**19
 NP1:Strike=220 Dip=78 Slip=   0
 NP2:       130     90       168

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