USGS/SLU Regional Moment Solution

OKLAHOMA

11/11/08 02:46:57.04

Epicenter:  35.535  -96.779
MW 4.8

USGS/SLU REGIONAL MOMENT TENSOR
Depth   6         No. of sta: 57
Moment Tensor;   Scale 10**16 Nm
  Mrr=-0.25       Mtt= 0.39
  Mpp=-0.13       Mrt= 0.15
  Mrp= 0.50       Mtp= 2.01
 Principal axes:
  T  Val=  2.23  Plg=10  Azm=318
  N       -0.29      76      181
  P       -1.95       9       50

Best Double Couple:Mo=2.1*10**16
 NP1:Strike= 94 Dip=76 Slip=   1
 NP2:         4     89       166

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