USGS Body-Wave Moment Tensor Solution


12/09/29 07:11:13.16

Epicenter:  16.355  -98.388
MW 5.5

Depth   4         No. of sta: 29
Moment Tensor;   Scale 10**17 Nm
  Mrr= 1.03       Mtt=-0.87
  Mpp=-0.17       Mrt= 1.56
  Mrp=-0.51       Mtp= 0.45
 Principal axes:
  T  Val=  1.93  Plg=61  Azm= 13
  N        0.04       4      110
  P       -1.97      28      203

Best Double Couple:Mo=2.0*10**17
 NP1:Strike=304 Dip=17 Slip= 104
 NP2:       109     74        86

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