USGS Centroid Moment Solution

OFF COAST OF AISEN, CHILE

12/11/13 04:31:27.32

Epicenter: -45.744  -77.142
MW 6.1

USGS CENTROID MOMENT TENSOR
12/11/13 04:31:46.90
Centroid: -45.730  -76.791
Depth  10         No. of sta: 38
Moment Tensor;   Scale 10**18 Nm
  Mrr=-0.10       Mtt= 0.56
  Mpp=-0.46       Mrt=-0.91
  Mrp=-0.07       Mtp=-1.25
 Principal axes:
  T  Val=  1.70  Plg=23  Azm=209
  N       -0.15      56       81
  P       -1.55      24      310

Best Double Couple:Mo=1.6*10**18
 NP1:Strike= 80 Dip=89 Slip=-146
 NP2:       349     56        -1

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