USGS Body-Wave Moment Tensor Solution


13/04/06 04:42:36.44

Epicenter:  -3.524  138.464
MW 7.0

Depth  70         No. of sta: 52
Moment Tensor;   Scale 10**19 Nm
  Mrr=-2.69       Mtt=-0.81
  Mpp= 3.49       Mrt= 1.18
  Mrp= 0.07       Mtp= 0.67
 Principal axes:
  T  Val=  3.61  Plg= 2  Azm=279
  N       -0.34      26       10
  P       -3.26      64      184

Best Double Couple:Mo=3.5*10**19
 NP1:Strike=212 Dip=53 Slip= -56
 NP2:       345     48      -126

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