USGS WPhase Moment Solution

OFF EAST COAST OF HONSHU, JAPAN

11/03/22  7:18:47

Epicenter:  37.249  143.956
MW 6.4

USGS/WPHASE CENTROID MOMENT TENSOR
11/03/22 07:18:47.00
Centroid:   37.049  144.156
Depth  15         No. of sta: 21
Moment Tensor;   Scale 10**18 Nm
  Mrr=-5.43       Mtt= 2.11
  Mpp= 3.32       Mrt= 2.15
  Mrp=-0.95       Mtp= 2.17
 Principal axes:
  T  Val=  5.00  Plg= 3  Azm=308
  N     =  1.23      18       40
  P     = -6.23      70      209

Best Double Couple:Mo=5.7*10**18
 NP1:Strike= 20 Dip=45 Slip=-117
 NP2:       236     51       -65

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 form 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