USGS Centroid Moment Solution
COSTA RICA
12/10/24 00:45:34.21 Epicenter: 10.121 -85.314 MW 6.4 USGS CENTROID MOMENT TENSOR 12/10/24 00:45:48.70 Centroid: 10.181 -84.976 Depth 10 No. of sta:102 Moment Tensor; Scale 10**18 Nm Mrr= 2.77 Mtt=-1.74 Mpp=-1.02 Mrt= 4.59 Mrp=-2.55 Mtp= 1.09 Principal axes: T Val= 6.01 Plg=58 Azm= 27 N -0.26 2 120 P -5.76 32 212 Best Double Couple:Mo=5.9*10**18 NP1:Strike=120 Dip=77 Slip= 88 NP2: 310 14 100
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.
