USGS Body-Wave Moment Tensor Solution


13/04/20 13:12:50.78

Epicenter:  50.120  157.313
MW 6.0

Depth  22         No. of sta:131
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.95       Mtt=-0.30
  Mpp=-0.64       Mrt= 0.58
  Mrp= 0.81       Mtp=-0.31
 Principal axes:
  T  Val=  1.40  Plg=66  Azm=308
  N       -0.12       2      214
  P       -1.28      24      123

Best Double Couple:Mo=1.3*10**18
 NP1:Strike= 34 Dip=69 Slip=  92
 NP2:       208     21        84

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