USGS Body-Wave Moment Tensor Solution


13/03/29 05:01:10.08

Epicenter:  43.470   86.865
MW 5.2

Depth  20         No. of sta: 36
Moment Tensor;   Scale 10**16 Nm
  Mrr=-1.48       Mtt=-1.75
  Mpp= 3.23       Mrt=-4.89
  Mrp=-1.18       Mtp= 5.79
 Principal axes:
  T  Val=  8.51  Plg=22  Azm=129
  N       -0.76      49      247
  P       -7.76      32       24

Best Double Couple:Mo=8.2*10**16
 NP1:Strike=170 Dip=50 Slip=-171
 NP2:        75     83       -40

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