USGS/SLU Regional Moment Solution


13/01/08 14:16:08.55

Epicenter:  39.677   25.536
MW 5.7

Depth  10         No. of sta: 25
Moment Tensor;   Scale 10**17 Nm
  Mrr=-0.01       Mtt= 4.42
  Mpp=-4.41       Mrt= 0.18
  Mrp=-1.20       Mtp=-2.55
 Principal axes:
  T  Val=  5.15  Plg= 5  Azm= 16
  N        0.17      77      130
  P       -5.33      12      284

Best Double Couple:Mo=5.2*10**17
 NP1:Strike= 61 Dip=78 Slip=-175
 NP2:       330     86       -12

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