USGS/SLU Regional Moment Solution


13/01/17 08:30:42.25

Epicenter:  24.395  122.004
MW 4.9

Depth  20         No. of sta: 19
Moment Tensor;   Scale 10**16 Nm
  Mrr=-0.35       Mtt= 1.96
  Mpp=-1.61       Mrt= 0.82
  Mrp=-0.56       Mtp= 1.67
 Principal axes:
  T  Val=  2.72  Plg=11  Azm=340
  N       -0.14      66       96
  P       -2.58      21      246

Best Double Couple:Mo=2.6*10**16
 NP1:Strike= 25 Dip=67 Slip=-173
 NP2:       292     83       -23

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