USGS Body-Wave Moment Tensor Solution

OFF COAST OF AISEN, CHILE

12/11/13 04:31:27.32

Epicenter: -45.744  -77.142
MW 6.0

USGS MOMENT TENSOR SOLUTION
Depth   4         No. of sta: 41
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.05       Mtt= 0.43
  Mpp=-0.48       Mrt= 0.07
  Mrp= 0.35       Mtp=-0.93
 Principal axes:
  T  Val=  1.03  Plg= 8  Azm=213
  N        0.13      72      329
  P       -1.16      16      121

Best Double Couple:Mo=1.1*10**18
 NP1:Strike=166 Dip=84 Slip= -17
 NP2:       258     73      -174

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