USGS Body-Wave Moment Tensor Solution


12/09/08 10:51:43.01

Epicenter:  -3.190  135.084
MW 6.0

Depth  23         No. of sta: 55
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.51       Mtt=-0.94
  Mpp= 0.43       Mrt=-0.23
  Mrp=-0.63       Mtp=-0.40
 Principal axes:
  T  Val=  1.10  Plg=46  Azm= 86
  N        0.04      41      237
  P       -1.15      15      340

Best Double Couple:Mo=1.1*10**18
 NP1:Strike=111 Dip=47 Slip= 153
 NP2:       220     71        46

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