M 7.2 - 16 km WSW of Uglegorsk, Russia

Felt (V) at Aniva, Ogonki and Peschanskoye; (IV) in the Korsakov-Nevelsk-Tomari area; (III) in the Uglegorsk-Poronaysk-Makarov area, Sakhalin. Felt (II) at Komsomolsk-na-Amure, USSR. Felt (III JMA) at Kushiro, Hokkaido. Also felt (III JMA) at Hachinohe and Morioka; (II JMA) at Tokyo and Yokohama, Honshu. Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=55 Dip=80 Slip=-73 NP2:Strike=175 Dip=20 Slip=-149 Principal Axes: (T) Plg=33 Azm=131 (P) Plg=52 Azm=345 Comment: The focal mechanism is moderately well controlled and corresponds to normal faulting with a moderate strike-slip component. The preferred fault plane is not determined. RADIATED ENERGY No. of sta: 11 Focal mech. M Energy 6.5+1.8*10**14 Nm MOMENT TENSOR SOLUTION Dep 609 No. of sta: 22 Moment Tensor; Scale 10**19 Nm Mrr=-3.26 Mtt=-3.20 Mff=6.45 Mrt=-2.86 Mrf=-4.22 Mtf=3.74 Principal axes: (T) Val=9.63 Plg=21 Azm=111 (N) Val=-3.52 Plg=34 Azm=216 (P) Val=-6.11 Plg=48 Azm=356 Best Double Couple:Mo=7.9*10**19 NP1:Strike=158 Dip=39 Slip=-154 NP2:Strike=47 Dip=74 Slip=-54 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 13S, 34C M.W.: 11S, 26C Centroid Location: Origin Time 04:50:16.6 0.2 Lat 48.94N 0.02 Lon 141.38E 0.03 Dep 612.5 1.6 Half-duration 15.0 Moment Tensor; Scale 10**19 Nm Mrr=-3.57 0.08 Mtt=-0.87 0.11 Mff=4.43 0.12 Mrt=-6.12 0.09 Mrf=-2.66 0.09 Mtf=2.47 0.10 Principal Axes: (T) Val=7.85 Plg=27 Azm=126 (N) Val=0.66 Plg=25 Azm=229 (P) Val=-8.51 Plg=52 Azm=356 Best Double Couple:Mo=8.2*10**19 NP1:Strike=172 Dip=29 Slip=-151 NP2:Strike=56 Dip=76 Slip=-64