USGS/SLU Regional Moment Solution


13/01/13 08:55:15.51

Epicenter:  39.612   25.545
MW 4.5

Depth   5         No. of sta: 20
Moment Tensor;   Scale 10**15 Nm
  Mrr= 1.90       Mtt= 3.82
  Mpp=-5.72       Mrt= 1.67
  Mrp=-0.13       Mtp=-3.38
 Principal axes:
  T  Val=  5.61  Plg=24  Azm= 17
  N        1.20      66      204
  P       -6.81       3      108

Best Double Couple:Mo=6.3*10**15
 NP1:Strike= 60 Dip=75 Slip= 161
 NP2:       155     72        16

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