USGS/SLU Regional Moment Solution


13/04/16 06:56:30.25

Epicenter:  35.692  -97.066
MW 4.4

Depth   4         No. of sta: 33
Moment Tensor;   Scale 10**15 Nm
  Mrr=-0.98       Mtt= 4.89
  Mpp=-3.91       Mrt=-1.35
  Mrp= 3.10       Mtp=-1.34
 Principal axes:
  T  Val=  5.64  Plg=17  Azm=194
  N        0.24      53      308
  P       -5.89      32       93

Best Double Couple:Mo=5.8*10**15
 NP1:Strike=140 Dip=81 Slip= -36
 NP2:       237     55      -168

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