USGS Body-Wave Moment Tensor Solution


13/05/12 00:07:01.71

Epicenter:  26.772   57.766
MW 5.5

Depth  16         No. of sta: 18
Moment Tensor;   Scale 10**17 Nm
  Mrr=-0.02       Mtt=-0.95
  Mpp= 0.97       Mrt= 0.47
  Mrp= 0.02       Mtp= 1.88
 Principal axes:
  T  Val=  2.16  Plg= 7  Azm=302
  N        0.02      77       66
  P       -2.18      10      211

Best Double Couple:Mo=2.2*10**17
 NP1:Strike=256 Dip=88 Slip= -12
 NP2:       347     78      -178

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