USGS Body-Wave Moment Tensor Solution

OFF W. COAST OF BAJA CALIFORNIA

12/12/14 10:36:02.00

Epicenter:  31.206 -119.565
MW 6.3

USGS MOMENT TENSOR SOLUTION
Depth  11         No. of sta: 38
Moment Tensor;   Scale 10**18 Nm
  Mrr=-3.54       Mtt= 0.91
  Mpp= 2.62       Mrt=-0.25
  Mrp=-1.03       Mtp= 0.85
 Principal axes:
  T  Val=  3.13  Plg= 9  Azm=112
  N        0.57       2       21
  P       -3.71      81      279

Best Double Couple:Mo=3.5*10**18
 NP1:Strike=204 Dip=36 Slip= -87
 NP2:        20     54       -93

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