USGS Centroid Moment Solution


12/11/16 18:12:39.97

Epicenter:  49.269  155.472
MW 6.5

12/11/16 18:12:55.70
Centroid:  49.077  155.599
Depth  45         No. of sta: 91
Moment Tensor;   Scale 10**18 Nm
  Mrr= 6.65       Mtt=-2.20
  Mpp=-4.45       Mrt= 1.36
  Mrp= 2.78       Mtp=-2.70
 Principal axes:
  T  Val=  7.36  Plg=77  Azm=291
  N       -0.42       3       32
  P       -6.94      13      123

Best Double Couple:Mo=7.2*10**18
 NP1:Strike= 31 Dip=58 Slip=  87
 NP2:       217     32        95

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