USGS Body-Wave Moment Tensor Solution


12/05/07 04:40:27.54

Epicenter:  41.575   46.772
MW 5.6

Depth  11         No. of sta: 107
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.91       Mtt=-0.94
  Mpp= 0.03       Mrt= 3.06
  Mrp=-1.55       Mtp= 0.31
 Principal axes:
  T  Val=  3.52  Plg=53  Azm= 30
  N        0.09       3      296
  P       -3.61      37      204

Best Double Couple:Mo=3.6*10**17
 NP1:Strike=274 Dip= 8 Slip=  68
 NP2:       117     82        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