M 6.2 - 18 km ESE of Linares, Chile

Slight damage (VI) at Talca. Felt (VI) at Chillan, Constitucion, Linares, San Carlos and San Fernando. Also felt (V) at Concepcion, (IV) at Santiago and (III) at Valparaiso. Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=177 Dip=80 Slip=146 NP2:Strike=274 Dip=57 Slip=12 Principal Axes: (T) Plg=31 Azm=130 (P) Plg=15 Azm=230 Comment: The focal mechanism is poorly controlled and corresponds to strike-slip faulting with a large reverse component. The preferred fault plane is not determined. MOMENT TENSOR SOLUTION Dep 83 No. of sta: 7 Moment Tensor; Scale 10**18 Nm Mrr=0.40 Mtt=-0.53 Mff=0.13 Mrt=0.03 Mrf=-1.19 Mtf=1.56 Principal axes: (T) Val=1.98 Plg=32 Azm=121 (N) Val=0.09 Plg=51 Azm=340 (P) Val=-2.06 Plg=19 Azm=224 Best Double Couple:Mo=2.0*10**18 NP1:Strike=267 Dip=52 Slip=11 NP2:Strike=170 Dip=82 Slip=142 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 14S, 33C M.W.: 10S, 16C Centroid Location: Origin Time 21:34: 9.9 0.2 Lat 35.89S 0.02 Lon 71.34W 0.02 Dep 92.0 1.6 Half-duration 5.0 Moment Tensor; Scale 10**18 Nm Mrr=0.58 0.03 Mtt=-0.59 0.03 Mff=0.01 0.03 Mrt=-0.16 0.03 Mrf=-1.46 0.03 Mtf=1.06 0.03 Principal Axes: (T) Val=2.04 Plg=44 Azm=115 (N) Val=-0.32 Plg=37 Azm=339 (P) Val=-1.72 Plg=24 Azm=230 Best Double Couple:Mo=1.9*10**18 NP1:Strike=273 Dip=40 Slip=19 NP2:Strike=168 Dip=78 Slip=128