USGS Body-Wave Moment Tensor Solution

NEAR EAST COAST OF HONSHU, JAPAN

11/08/19 05:36:32.83

Epicenter:  37.673  141.716
MW 6.3

USGS MOMENT TENSOR SOLUTION
Depth  47         No. of sta: 93
Moment Tensor;   Scale 10**18 Nm
  Mrr= 3.58       Mtt=-0.14
  Mpp=-3.43       Mrt=-0.19
  Mrp=-1.38       Mtp=-0.42
 Principal axes:
  T  Val=  3.84  Plg=79  Azm= 99
  N       -0.09       0        7
  P       -3.75      11      277

Best Double Couple:Mo=3.8*10**18
 NP1:Strike=  7 Dip=34 Slip=  90
 NP2:       187     56        90

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