USGS Body-Wave Moment Tensor Solution


12/11/16 18:12:39.93

Epicenter:  49.273  155.478
MW 6.4

Depth  35         No. of sta: 88
Moment Tensor;   Scale 10**18 Nm
  Mrr= 4.37       Mtt=-1.98
  Mpp=-2.39       Mrt= 1.30
  Mrp= 1.91       Mtp=-1.45
 Principal axes:
  T  Val=  4.99  Plg=75  Azm=301
  N       -0.73       2       39
  P       -4.26      15      130

Best Double Couple:Mo=4.7*10**18
 NP1:Strike= 38 Dip=60 Slip=  87
 NP2:       223     30        94

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