USGS Body-Wave Moment Tensor Solution

OFFSHORE O'HIGGINS, CHILE

12/11/21 21:36:21.83

Epicenter: -33.988  -72.031
MW 5.8

USGS MOMENT TENSOR SOLUTION
Depth  14         No. of sta: 41
Moment Tensor;   Scale 10**17 Nm
  Mrr= 4.66       Mtt=-1.48
  Mpp=-3.17       Mrt= 1.05
  Mrp=-4.77       Mtp= 1.36
 Principal axes:
  T  Val=  6.93  Plg=65  Azm= 84
  N       -0.88       6      341
  P       -6.05      24      248

Best Double Couple:Mo=6.5*10**17
 NP1:Strike=324 Dip=22 Slip=  73
 NP2:       163     69        97

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