M 7.1 - 152 km WNW of Tobelo, Indonesia

Felt at Manado and Bitung, Sulawesi. Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=210 Dip=65 Slip=45 NP2:Strike=97 Dip=50 Slip=147 Principal Axes: (T) Plg=49 Azm=71 (P) Plg=9 Azm=330 Comment: The focal mechanism is poorly controlled and corresponds to reverse faulting with a large strike-slip component. The preferred fault plane is not determined. RADIATED ENERGY No. of sta: 7 Focal mech. M Energy 1.9+0.7*10**15 Nm MOMENT TENSOR SOLUTION Dep 60 No. of sta: 10 Moment Tensor; Scale 10**19 Nm Mrr=4.15 Mtt=-3.10 Mff=-1.05 Mrt=-0.70 Mrf=-1.32 Mtf=-2.59 Principal axes: (T) Val=4.46 Plg=77 Azm=93 (N) Val=0.59 Plg=10 Azm=233 (P) Val=-5.05 Plg=8 Azm=325 Best Double Couple:Mo=4.8*10**19 NP1:Strike=67 Dip=38 Slip=107 NP2:Strike=226 Dip=54 Slip=77 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 13S, 37C M.W.: 14S, 32C Centroid Location: Origin Time 11:15:31.2 0.2 Lat 2.64N 0.02 Lon 126.72E 0.02 Dep 43.5 0.7 Half-duration 14.0 Moment Tensor; Scale 10**19 Nm Mrr=4.97 0.07 Mtt=-1.27 0.04 Mff=-3.69 0.05 Mrt=-1.39 0.12 Mrf=-2.17 0.13 Mtf=-1.79 0.05 Principal Axes: (T) Val=5.62 Plg=76 Azm=126 (N) Val=-0.33 Plg=2 Azm=29 (P) Val=-5.29 Plg=14 Azm=299 Best Double Couple:Mo=5.4*10**19 NP1:Strike=26 Dip=31 Slip=87 NP2:Strike=210 Dip=59 Slip=92