USGS Centroid Moment Solution


12/11/15 09:20:22.66

Epicenter:  18.386 -100.398
MW 6.1

12/11/15 09:20:40.59
Centroid:  18.546  -99.862
Depth  53         No. of sta: 26
Moment Tensor;   Scale 10**18 Nm
  Mrr=-2.08       Mtt= 1.59
  Mpp= 0.49       Mrt=-0.54
  Mrp=-0.01       Mtp=-0.59
 Principal axes:
  T  Val=  1.91  Plg= 7  Azm=203
  N        0.25       5      112
  P       -2.16      81      346

Best Double Couple:Mo=2.0*10**18
 NP1:Strike=108 Dip=52 Slip= -97
 NP2:       299     38       -81

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