USGS Centroid Moment Solution


13/02/14 13:13:52.86

Epicenter:  67.582  142.564
MW 6.7

13/02/14 13:14:11.20
Centroid:  67.372  142.282
Depth  16         No. of sta:121
Moment Tensor;   Scale 10**19 Nm
  Mrr= 1.10       Mtt=-0.66
  Mpp=-0.44       Mrt= 0.90
  Mrp= 0.56       Mtp= 0.65
 Principal axes:
  T  Val=  1.76  Plg=58  Azm=320
  N       -0.48      30      116
  P       -1.28      11      212

Best Double Couple:Mo=1.5*10**19
 NP1:Strike= 98 Dip=63 Slip=  56
 NP2:       334     43       137

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