USGS Body-Wave Moment Tensor Solution


13/01/03 00:02:14.21

Epicenter:  -1.560  127.395
MW 5.6

Depth  16         No. of sta: 14
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.14       Mtt=-0.69
  Mpp= 0.55       Mrt= 0.32
  Mrp= 0.77       Mtp= 2.85
 Principal axes:
  T  Val=  3.07  Plg=15  Azm=308
  N       -0.07      74      145
  P       -3.00       4       39

Best Double Couple:Mo=3.0*10**17
 NP1:Strike=353 Dip=82 Slip= 166
 NP2:        85     76         8

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