USGS Body-Wave Moment Tensor Solution


12/09/12 03:27:45.51

Epicenter:  34.879   24.136
MW 5.3

Depth  21         No. of sta: 53
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.26       Mtt=-0.17
  Mpp=-0.09       Mrt= 0.89
  Mrp=-0.67       Mtp=-0.03
 Principal axes:
  T  Val=  1.20  Plg=50  Azm= 39
  N       -0.14       2      306
  P       -1.06      40      215

Best Double Couple:Mo=1.1*10**17
 NP1:Strike=281 Dip= 5 Slip=  65
 NP2:       127     85        92

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