USGS/SLU Regional Moment Solution


12/12/13 21:39:26.68

Epicenter:  41.111   19.793
MW 4.1

Depth  26         No. of sta: 17
Moment Tensor;   Scale 10**15 Nm
  Mrr= 0.41       Mtt=-0.58
  Mpp= 0.17       Mrt= 0.64
  Mrp=-1.25       Mtp= 0.46
 Principal axes:
  T  Val=  1.56  Plg=49  Azm= 83
  N        0.01      21      327
  P       -1.57      34      222

Best Double Couple:Mo=1.6*10**15
 NP1:Strike=150 Dip=82 Slip= 111
 NP2:       260     22        22

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