USGS Body-Wave Moment Tensor Solution


12/11/15 09:20:22.65

Epicenter:  18.389 -100.404
MW 6.1

Depth  53         No. of sta: 23
Moment Tensor;   Scale 10**18 Nm
  Mrr=-1.73       Mtt= 0.98
  Mpp= 0.75       Mrt=-0.28
  Mrp=-0.00       Mtp=-0.79
 Principal axes:
  T  Val=  1.68  Plg= 4  Azm=221
  N        0.09       6      130
  P       -1.76      83      342

Best Double Couple:Mo=1.7*10**18
 NP1:Strike=317 Dip=42 Slip= -81
 NP2:       125     49       -98

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