USGS WPhase Moment Solution


11/10/23 10:41:21.60

Epicenter:  38.752   43.456
MW 7.1

11/10/23 10:41:21.60
Centroid:   38.852   43.840
Depth  13         No. of sta: 98
Moment Tensor;   Scale 10**19 Nm
  Mrr= 4.81       Mtt=-5.16
  Mpp= 0.35       Mrt= 0.08
  Mrp=-2.45       Mtp=-0.62
 Principal axes:
  T  Val=  5.90  Plg=65  Azm= 85
  N     = -0.67      24      262
  P     = -5.23       1      353

Best Double Couple:Mo=5.6*10**19
 NP1:Strike=106 Dip=49 Slip= 123
 NP2:       241     51        58

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

Details on the W-phase inversion algorithm.