USGS/SLU Regional Moment Solution
12/10/26 23:16:47.26 Epicenter: 38.958 22.935 MW 4.5 USGS/SLU REGIONAL MOMENT TENSOR Depth 16 No. of sta: 30 Moment Tensor; Scale 10**15 Nm Mrr=-4.05 Mtt= 5.99 Mpp=-1.94 Mrt=-0.39 Mrp= 3.63 Mtp= 0.81 Principal axes: T Val= 6.07 Plg= 0 Azm=174 N 0.75 37 264 P -6.82 53 84 Best Double Couple:Mo=6.5*10**15 NP1:Strike=115 Dip=56 Slip= -43 NP2: 233 56 -137
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.