USGS/SLU Regional Moment Solution

13/02/13 00:10:13.90

Epicenter:  38.032 -118.038
MW 5.1

USGS/SLU REGIONAL MOMENT TENSOR
Depth  10         No. of sta:101
Moment Tensor;   Scale 10**16 Nm
  Mrr= 0.06       Mtt=-1.58
  Mpp= 1.51       Mrt= 1.25
  Mrp=-1.51       Mtp= 4.70
 Principal axes:
  T  Val=  4.96  Plg= 6  Azm=125
  N        0.65      70       17
  P       -5.61      19      217

Best Double Couple:Mo=5.3*10**16
 NP1:Strike=352 Dip=81 Slip=-162
 NP2:       259     73        -9

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