USGS Body-Wave Moment Tensor Solution

BIO-BIO, CHILE

12/12/26 13:17:56.41

Epicenter: -37.285  -73.370
MW 5.2

USGS MOMENT TENSOR SOLUTION
Depth  20         No. of sta: 26
Moment Tensor;   Scale 10**16 Nm
  Mrr= 6.72       Mtt= 0.69
  Mpp=-7.41       Mrt=-0.02
  Mrp=-4.70       Mtp= 0.95
 Principal axes:
  T  Val=  8.15  Plg=73  Azm= 98
  N        0.76       4      355
  P       -8.91      17      264

Best Double Couple:Mo=8.6*10**16
 NP1:Strike=349 Dip=29 Slip=  82
 NP2:       178     62        94

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