USGS Body-Wave Moment Tensor Solution
13/01/19 13:48:06.17 Epicenter: 11.298 125.363 MW 5.3 USGS MOMENT TENSOR SOLUTION Depth 43 No. of sta: 6 Moment Tensor; Scale 10**16 Nm Mrr= 9.08 Mtt=-2.59 Mpp=-6.49 Mrt= 1.66 Mrp= 2.52 Mtp= 4.84 Principal axes: T Val= 9.98 Plg=73 Azm=315 N -0.15 17 148 P -9.83 4 57 Best Double Couple:Mo=9.9*10**16 NP1:Strike=342 Dip=51 Slip= 112 NP2: 130 44 66
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.