USGS Centroid Moment Solution
NORTHERN ITALY
12/05/20 02:03:52.28 Epicenter: 44.799 11.192 MW 6.0 USGS CENTROID MOMENT TENSOR 12/05/20 02:04:07.00 Centroid: 44.997 11.651 Depth 12 No. of sta: 23 Moment Tensor; Scale 10**18 Nm Mrr= 1.49 Mtt=-1.17 Mpp=-0.32 Mrt=-0.23 Mrp=-0.46 Mtp= 0.26 Principal axes: T Val= 1.64 Plg=75 Azm=113 N -0.39 15 284 P -1.25 2 14 Best Double Couple:Mo=1.4*10**18 NP1:Strike=119 Dip=45 Slip= 112 NP2: 270 49 70
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.
