USGS/SLU Regional Moment Solution


12/11/28 01:49:46.63

Epicenter:  42.415   20.074
MW 4.0

Depth   9         No. of sta: 24
Moment Tensor;   Scale 10**15 Nm
  Mrr=-0.99       Mtt= 0.99
  Mpp= 0.00       Mrt= 1.10
  Mrp=-0.13       Mtp=-0.08
 Principal axes:
  T  Val=  1.49  Plg=24  Azm=  5
  N       -0.00       1       96
  P       -1.49      66      188

Best Double Couple:Mo=1.5*10**15
 NP1:Strike=276 Dip=69 Slip= -89
 NP2:        93     21       -93

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