USGS Body-Wave Moment Tensor Solution


12/12/17 00:28:55.82

Epicenter:  49.749  155.952
MW 5.6

Depth  41         No. of sta: 88
Moment Tensor;   Scale 10**17 Nm
  Mrr= 3.05       Mtt=-1.52
  Mpp=-1.53       Mrt= 0.60
  Mrp= 0.95       Mtp=-1.36
 Principal axes:
  T  Val=  3.26  Plg=79  Azm=293
  N       -0.18       4       43
  P       -3.08      10      134

Best Double Couple:Mo=3.2*10**17
 NP1:Strike= 41 Dip=55 Slip=  85
 NP2:       229     35        97

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