USGS/SLU Regional Moment Solution

13/04/18 03:42:50.06

Epicenter:  31.726  140.288
MW 4.5

USGS/SLU REGIONAL MOMENT TENSOR
Depth  53         No. of sta:  6
Moment Tensor;   Scale 10**15 Nm
  Mrr= 4.25       Mtt=-1.68
  Mpp=-2.57       Mrt=-4.68
  Mrp= 2.72       Mtp= 1.32
 Principal axes:
  T  Val=  7.16  Plg=62  Azm=203
  N       -1.05       8      308
  P       -6.11      27       42

Best Double Couple:Mo=6.7*10**15
 NP1:Strike=306 Dip=73 Slip=  82
 NP2:       151     19       115

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