USGS WPhase Moment Solution
SOUTH OF FIJI ISLANDS
11/07/29 7:42:23 Epicenter: -23.636 179.805 MW 6.7 USGS/WPHASE CENTROID MOMENT TENSOR 11/07/29 07:42:23.00 Centroid: -23.636 179.805 Depth 520 No. of sta: 44 Moment Tensor; Scale 10**19 Nm Mrr= 1.11 Mtt=-1.14 Mpp= 0.03 Mrt=-0.54 Mrp=-0.46 Mtp=-0.21 Principal axes: T Val= 1.35 Plg=69 Azm=120 N = -0.02 13 252 P = -1.33 14 346 Best Double Couple:Mo=1.3*10**19 NP1:Strike= 95 Dip=33 Slip= 116 NP2: 245 61 74
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.
