USGS Centroid Moment Solution
NORTHEASTERN SAKHA, RUSSIA
13/02/14 13:13:52.86 Epicenter: 67.582 142.564 MW 6.7 USGS CENTROID MOMENT TENSOR 13/02/14 13:14:11.20 Centroid: 67.372 142.282 Depth 16 No. of sta:121 Moment Tensor; Scale 10**19 Nm Mrr= 1.10 Mtt=-0.66 Mpp=-0.44 Mrt= 0.90 Mrp= 0.56 Mtp= 0.65 Principal axes: T Val= 1.76 Plg=58 Azm=320 N -0.48 30 116 P -1.28 11 212 Best Double Couple:Mo=1.5*10**19 NP1:Strike= 98 Dip=63 Slip= 56 NP2: 334 43 137
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.
