USGS Body-Wave Moment Tensor Solution


13/04/16 10:44:20.60

Epicenter:  28.080   62.051
MW 7.7

Depth  82         No. of sta: 71
Moment Tensor;   Scale 10**20 Nm
  Mrr=-3.31       Mtt= 3.29
  Mpp= 0.02       Mrt= 1.32
  Mrp= 1.32       Mtp= 1.53
 Principal axes:
  T  Val=  4.29  Plg=13  Azm=336
  N       -0.43      12      244
  P       -3.85      72      113

Best Double Couple:Mo=4.1*10**20
 NP1:Strike=236 Dip=59 Slip=-104
 NP2:        82     34       -68

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