USGS Centroid Moment Solution

SANTIAGO DEL ESTERO, ARGENTINA

12/05/28 05:07:23.02

Epicenter: -28.061  -63.016
MW 6.7

USGS CENTROID MOMENT TENSOR
12/05/28 05:07:36.59
Centroid: -28.104  -62.761
Depth 595         No. of sta: 29
Moment Tensor;   Scale 10**19 Nm
  Mrr=-0.74       Mtt=-0.15
  Mpp= 0.88       Mrt=-0.55
  Mrp= 0.95       Mtp= 0.02
 Principal axes:
  T  Val=  1.35  Plg=26  Azm=260
  N        0.03      16      162
  P       -1.38      58       43

Best Double Couple:Mo=1.4*10**19
 NP1:Strike= 24 Dip=24 Slip= -46
 NP2:       157     73      -107

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