USGS WPhase Moment Solution
SOLOMON ISLANDS
11/03/07 0:09:38 Epicenter: -10.334 160.739 MW 6.3 USGS/WPHASE CENTROID MOMENT TENSOR 11/03/07 00:09:38.00 Centroid: -10.134 160.139 Depth 37 No. of sta: 23 Moment Tensor; Scale 10**18 Nm Mrr= 4.20 Mtt=-1.93 Mpp=-2.27 Mrt= 0.35 Mrp= 0.81 Mtp= 2.00 Principal axes: T Val= 4.36 Plg=79 Azm=304 N = -0.24 10 138 P = -4.12 2 47 Best Double Couple:Mo=4.2*10**18 NP1:Strike=127 Dip=43 Slip= 75 NP2: 327 48 104
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 form 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.
