USGS Body-Wave Moment Tensor Solution


13/03/27 02:03:19.90

Epicenter:  23.850  121.146
MW 5.9

Depth  20         No. of sta: 59
Moment Tensor;   Scale 10**17 Nm
  Mrr= 5.48       Mtt=-0.61
  Mpp=-4.87       Mrt=-1.41
  Mrp=-5.19       Mtp=-1.84
 Principal axes:
  T  Val=  7.68  Plg=68  Azm=101
  N        0.05       3      198
  P       -7.73      22      289

Best Double Couple:Mo=7.7*10**17
 NP1:Strike= 24 Dip=23 Slip=  97
 NP2:       197     67        87

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