USGS Body-Wave Moment Tensor Solution

12/06/07 16:03:18.36

Epicenter: -15.919  -72.516
MW 6.0

USGS MOMENT TENSOR SOLUTION
Depth 105         No. of sta: 14
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.30       Mtt=-0.81
  Mpp= 0.51       Mrt=-0.50
  Mrp=-1.20       Mtp=-0.19
 Principal axes:
  T  Val=  1.62  Plg=43  Azm= 97
  N       -0.32      29      218
  P       -1.31      33      328

Best Double Couple:Mo=1.5*10**18
 NP1:Strike=214 Dip=84 Slip=  61
 NP2:       114     29       168

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