M 6.4 - 34 km N of Bugko, Philippines

Felt (IV RF) at Santa Misericordia, Luzon, (III RF) at Catbalogan, Samar and (II RF) at Manila, Luzon. Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=3 Dip=68 Slip=90 NP2:Strike=183 Dip=22 Slip=90 Principal Axes: (T) Plg=67 Azm=273 (P) Plg=23 Azm=93 Comment: The focal mechanism is poorly controlled and corresponds to reverse faulting. The preferred fault plane is NP2. RADIATED ENERGY No. of sta: 7 Focal mech. F Energy 2.8+0.4*10**13 Nm MOMENT TENSOR SOLUTION Dep 10 No. of sta: 14 Moment Tensor; Scale 10**18 Nm Mrr=2.16 Mtt=0.94 Mff=-3.10 Mrt=-0.09 Mrf=2.93 Mtf=-0.01 Principal axes: (T) Val=3.47 Plg=66 Azm=265 (N) Val=0.93 Plg=2 Azm=359 (P) Val=-4.41 Plg=24 Azm=90 Best Double Couple:Mo=3.9*10**18 NP1:Strike=183 Dip=21 Slip=95 NP2:Strike=358 Dip=69 Slip=88 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 13S, 39C M.W.: 13S, 26C Centroid Location: Origin Time 16:27: 8.7 0.1 Lat 12.93N 0.01 Lon 125.04E 0.02 Dep 28.6 0.9 Half-duration 6.2 Moment Tensor; Scale 10**18 Nm Mrr=2.54 0.04 Mtt=0.07 0.02 Mff=-2.62 0.04 Mrt=-0.41 0.08 Mrf=3.13 0.13 Mtf=0.67 0.03 Principal Axes: (T) Val=4.03 Plg=65 Azm=267 (N) Val=0.21 Plg=3 Azm=170 (P) Val=-4.23 Plg=25 Azm=79 Best Double Couple:Mo=4.1*10**18 NP1:Strike=161 Dip=20 Slip=81 NP2:Strike=351 Dip=70 Slip=93