USGS/SLU Regional Moment Solution


 11/05/11 16:47:26   
 Epicenter:  37.700   -1.560
 MW 5.1

 Depth  19         No. of sta: 10
 Moment Tensor;   Scale 10**16 Nm
   Mrr= 0.84       Mtt=-5.02
   Mpp= 4.18       Mrt=-0.47
   Mrp= 1.89       Mtp=-0.42
  Principal axes:
   T  Val=  5.07  Plg=24  Azm=266
   N        0.00      65       97
   P       -5.07       4      358

 Best Double Couple:Mo=5.1*10**16
  NP1:Strike=310 Dip=76 Slip= 159
  NP2:        45     70        15

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