USGS/SLU Regional Moment Solution

12/10/20 00:25:51.75

Epicenter: -32.208  -71.931
MW 4.3

USGS/SLU REGIONAL MOMENT TENSOR
Depth   8         No. of sta: 11
Moment Tensor;   Scale 10**15 Nm
  Mrr= 0.19       Mtt= 0.31
  Mpp=-0.50       Mrt= 0.92
  Mrp=-3.05       Mtp=-0.55
 Principal axes:
  T  Val=  3.28  Plg=45  Azm= 62
  N       -0.05      12      164
  P       -3.24      42      265

Best Double Couple:Mo=3.3*10**15
 NP1:Strike=164 Dip=89 Slip=  78
 NP2:        67     12       173

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