USGS/SLU Regional Moment Solution


13/01/25 18:52:26.45

Epicenter:  43.337   18.765
MW 4.0

Depth  16         No. of sta: 11
Moment Tensor;   Scale 10**15 Nm
  Mrr=-0.29       Mtt=-0.20
  Mpp= 0.49       Mrt= 0.24
  Mrp=-0.19       Mtp= 1.15
 Principal axes:
  T  Val=  1.35  Plg= 1  Azm=127
  N       -0.18      71       35
  P       -1.17      19      217

Best Double Couple:Mo=1.3*10**15
 NP1:Strike=353 Dip=77 Slip=-166
 NP2:       260     76       -13

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