USGS Body-Wave Moment Tensor Solution

OFFSHORE CHIAPAS, MEXICO

12/12/30 12:21:24.96

Epicenter:  14.502  -92.858
MW 5.3

USGS MOMENT TENSOR SOLUTION
Depth  26         No. of sta: 44
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.89       Mtt=-0.55
  Mpp=-0.34       Mrt= 0.59
  Mrp=-0.14       Mtp= 0.37
 Principal axes:
  T  Val=  1.10  Plg=71  Azm=  1
  N       -0.10      10      120
  P       -1.00      17      213

Best Double Couple:Mo=1.1*10**17
 NP1:Strike=317 Dip=29 Slip= 110
 NP2:       115     62        79

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