USGS Body-Wave Moment Tensor Solution


12/09/27 23:53:49.24

Epicenter:  -8.824  157.539
MW 5.9

Depth   4         No. of sta: 42
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.11       Mtt=-0.03
  Mpp=-0.08       Mrt= 0.60
  Mrp=-0.86       Mtp= 0.11
 Principal axes:
  T  Val=  1.02  Plg=49  Azm= 56
  N        0.06       1      325
  P       -1.08      41      234

Best Double Couple:Mo=1.1*10**18
 NP1:Strike=315 Dip= 4 Slip=  80
 NP2:       145     86        91

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