USGS Body-Wave Moment Tensor Solution


13/03/29 07:30:58.33

Epicenter: -35.372  -72.747
MW 5.5

Depth   9         No. of sta: 16
Moment Tensor;   Scale 10**17 Nm
  Mrr= 1.58       Mtt=-0.23
  Mpp=-1.35       Mrt= 0.00
  Mrp=-1.23       Mtp= 0.31
 Principal axes:
  T  Val=  2.04  Plg=70  Azm= 98
  N       -0.18       6      351
  P       -1.86      19      259

Best Double Couple:Mo=2.0*10**17
 NP1:Strike=339 Dip=26 Slip=  76
 NP2:       174     65        97

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