USGS/SLU Regional Moment Solution


13/01/23 02:47:39.58

Epicenter: -31.693  -71.455
MW 4.9

Depth  38         No. of sta: 17
Moment Tensor;   Scale 10**16 Nm
  Mrr= 2.30       Mtt=-0.57
  Mpp=-1.73       Mrt= 0.05
  Mrp=-1.81       Mtp= 0.20
 Principal axes:
  T  Val=  2.99  Plg=69  Azm= 91
  N       -0.55       3      354
  P       -2.44      21      263

Best Double Couple:Mo=2.8*10**16
 NP1:Strike=349 Dip=24 Slip=  84
 NP2:       176     66        93

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