USGS WPhase Moment Solution
NORTHEASTERN SAKHA, RUSSIA
13/02/14 13:13:53 Epicenter: 67.613 142.600 MW 6.6 USGS/WPHASE CENTROID MOMENT TENSOR 13/02/14 13:13:53.00 Centroid: 67.913 141.833 Depth 15 No. of sta:109 Moment Tensor; Scale 10**18 Nm Mrr= 9.43 Mtt=-5.53 Mpp=-3.90 Mrt= 0.41 Mrp= 3.38 Mtp= 5.63 Principal axes: T Val= 10.45 Plg=72 Azm=293 N = 0.14 16 133 P =-10.59 5 42 Best Double Couple:Mo=1.1*10**19 NP1:Strike=115 Dip=42 Slip= 65 NP2: 327 53 111
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.
