USGS WPhase Moment Solution
SULAWESI, INDONESIA
12/12/28 17:32:17.00 Epicenter: -0.246 122.951 MW 5.5 USGS/WPHASE CENTROID MOMENT TENSOR 12/12/28 17:32:17.00 Centroid: -0.346 122.951 Depth 120 No. of sta: 24 Moment Tensor; Scale 10**17 Nm Mrr= 1.16 Mtt=-1.43 Mpp= 0.27 Mrt= 1.72 Mrp=-0.66 Mtp=-0.13 Principal axes: T Val= 2.23 Plg=58 Azm= 37 N = 0.07 14 282 P = -2.30 27 184 Best Double Couple:Mo=2.3*10**17 NP1:Strike=243 Dip=22 Slip= 49 NP2: 106 74 105
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.
