USGS Body-Wave Moment Tensor Solution


12/12/14 04:04:08.82

Epicenter:  13.970  -91.705
MW 5.2

Depth  18         No. of sta: 26
Moment Tensor;   Scale 10**16 Nm
  Mrr= 7.10       Mtt=-6.02
  Mpp=-1.08       Mrt= 2.05
  Mrp=-1.95       Mtp= 2.14
 Principal axes:
  T  Val=  7.72  Plg=77  Azm= 58
  N       -0.42       7      293
  P       -7.30      10      202

Best Double Couple:Mo=7.5*10**16
 NP1:Strike=283 Dip=35 Slip=  77
 NP2:       119     56        99

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