USGS Body-Wave Moment Tensor Solution

13/01/13 17:50:16.60

Epicenter:  26.093 -110.062
MW 6.1

USGS MOMENT TENSOR SOLUTION
Depth   9         No. of sta:  8
Moment Tensor;   Scale 10**18 Nm
  Mrr= 1.81       Mtt=-0.98
  Mpp=-0.83       Mrt=-0.00
  Mrp=-0.03       Mtp=-0.03
 Principal axes:
  T  Val=  1.81  Plg=90  Azm= 97
  N       -0.82       1      258
  P       -0.98       0      348

Best Double Couple:Mo=1.6*10**18
 NP1:Strike=257 Dip=45 Slip=  89
 NP2:        78     45        91

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