USGS Body-Wave Moment Tensor Solution


12/11/14 19:02:05.60

Epicenter: -29.149  -71.235
MW 6.2

Depth  53         No. of sta: 71
Moment Tensor;   Scale 10**18 Nm
  Mrr=-0.30       Mtt= 0.48
  Mpp=-0.18       Mrt=-0.43
  Mrp=-2.24       Mtp= 0.59
 Principal axes:
  T  Val=  2.29  Plg=40  Azm=119
  N        0.19      17       15
  P       -2.49      45      267

Best Double Couple:Mo=2.4*10**18
 NP1:Strike=274 Dip=17 Slip= -10
 NP2:        14     87      -107

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