USGS WPhase Moment Solution
SOLOMON ISLANDS
11/04/23 4:16:55 Epicenter: -10.349 161.232 MW 6.8 USGS/WPHASE CENTROID MOMENT TENSOR 11/04/23 04:16:55.00 Centroid: -10.349 161.232 Depth 81 No. of sta: 41 Moment Tensor; Scale 10**19 Nm Mrr= 0.24 Mtt=-0.91 Mpp= 0.66 Mrt=-1.16 Mrp=-0.26 Mtp= 1.26 Principal axes: T Val= 1.82 Plg=30 Azm=127 N = 0.17 50 261 P = -1.99 23 23 Best Double Couple:Mo=1.9*10**19 NP1:Strike=163 Dip=50 Slip= 174 NP2: 257 86 40
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.
