USGS Body-Wave Moment Tensor Solution


12/10/07 03:14:23.44

Epicenter:  18.551  120.959
MW 5.6

Depth  37         No. of sta: 35
Moment Tensor;   Scale 10**17 Nm
  Mrr= 2.87       Mtt= 0.60
  Mpp=-3.47       Mrt=-0.34
  Mrp=-0.81       Mtp=-0.41
 Principal axes:
  T  Val=  3.01  Plg=80  Azm=136
  N        0.61       6        7
  P       -3.62       7      276

Best Double Couple:Mo=3.4*10**17
 NP1:Strike=359 Dip=38 Slip=  80
 NP2:       192     53        98

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