USGS Centroid Moment Solution

NEAR EAST COAST OF HONSHU, JAPAN

13/05/18 05:47:59.11

Epicenter:  37.745  141.494
MW 6.0

USGS CENTROID MOMENT TENSOR
13/05/18 05:48:18.29
Centroid:  37.801  142.069
Depth  66         No. of sta: 17
Moment Tensor;   Scale 10**18 Nm
  Mrr= 1.08       Mtt=-0.22
  Mpp=-0.86       Mrt= 0.26
  Mrp= 0.73       Mtp=-0.53
 Principal axes:
  T  Val=  1.32  Plg=72  Azm=281
  N        0.07       5       26
  P       -1.39      17      118

Best Double Couple:Mo=1.4*10**18
 NP1:Strike= 24 Dip=62 Slip=  85
 NP2:       215     28       100

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