USGS Centroid Moment Solution

SANTIAGO DEL ESTERO, ARGENTINA

13/02/22 12:01:59.23

Epicenter: -27.993  -63.195
MW 6.1

USGS CENTROID MOMENT TENSOR
13/02/22 12:02:10.09
Centroid: -27.862  -63.610
Depth 594         No. of sta: 25
Moment Tensor;   Scale 10**18 Nm
  Mrr=-1.00       Mtt=-0.49
  Mpp= 1.49       Mrt=-0.81
  Mrp= 0.96       Mtp=-0.70
 Principal axes:
  T  Val=  2.15  Plg=21  Azm=249
  N       -0.50      23      150
  P       -1.65      58       16

Best Double Couple:Mo=1.9*10**18
 NP1:Strike= 13 Dip=32 Slip= -42
 NP2:       140     69      -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