USGS/SLU Regional Moment Solution


13/04/16 10:16:53.26

Epicenter:  35.687  -97.109
MW 4.2

Depth   4         No. of sta: 35
Moment Tensor;   Scale 10**15 Nm
  Mrr=-0.19       Mtt= 2.00
  Mpp=-1.80       Mrt= 0.58
  Mrp= 0.97       Mtp=-0.87
 Principal axes:
  T  Val=  2.24  Plg= 9  Azm= 10
  N        0.25      63      261
  P       -2.50      25      104

Best Double Couple:Mo=2.4*10**15
 NP1:Strike=144 Dip=65 Slip= -12
 NP2:       239     79      -155

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