USGS WPhase Moment Solution
NEAR EAST COAST OF HONSHU, JAPAN
11/08/19 5:36:32 Epicenter: 37.673 141.716 MW 6.2 USGS/WPHASE CENTROID MOMENT TENSOR 11/08/19 05:36:32.00 Centroid: 37.573 141.842 Depth 45 No. of sta: 80 Moment Tensor; Scale 10**18 Nm Mrr= 2.60 Mtt=-0.60 Mpp=-2.00 Mrt= 0.35 Mrp=-0.05 Mtp=-0.41 Principal axes: T Val= 2.64 Plg=83 Azm= 11 N = -0.52 6 195 P = -2.11 0 105 Best Double Couple:Mo=2.4*10**18 NP1:Strike=189 Dip=45 Slip= 81 NP2: 22 46 99
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.
