USGS Body-Wave Moment Tensor Solution

SANTIAGO DEL ESTERO, ARGENTINA

13/02/22 12:01:59.23

Epicenter: -27.993  -63.195
MW 6.2

USGS MOMENT TENSOR SOLUTION
Depth 587         No. of sta: 57
Moment Tensor;   Scale 10**18 Nm
  Mrr=-1.30       Mtt=-0.32
  Mpp= 1.62       Mrt=-1.07
  Mrp= 1.71       Mtp=-0.60
 Principal axes:
  T  Val=  2.74  Plg=26  Azm=249
  N       -0.38      12      153
  P       -2.37      61       41

Best Double Couple:Mo=2.6*10**18
 NP1:Strike=150 Dip=72 Slip=-102
 NP2:         5     22       -57

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