USGS/SLU Regional Moment Solution

ANTOFAGASTA, CHILE

12/11/16 00:38:06.17

Epicenter: -21.482  -69.372
MW 4.9

USGS/SLU REGIONAL MOMENT TENSOR
Depth  59         No. of sta: 16
Moment Tensor;   Scale 10**16 Nm
  Mrr= 3.14       Mtt=-2.59
  Mpp=-0.55       Mrt= 0.15
  Mrp= 0.08       Mtp=-1.45
 Principal axes:
  T  Val=  3.14  Plg=88  Azm=334
  N        0.21       0      243
  P       -3.35       2      153

Best Double Couple:Mo=3.3*10**16
 NP1:Strike= 63 Dip=47 Slip=  90
 NP2:       243     44        90

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