M 5.9 - 8 km E of Sig, Algeria

  • 1994-08-18 01:13:05 (UTC)
  • 35.520°N 0.106°W
  • 8.7 km depth

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At least 159 people were killed, 289 injured, 8,000 to 10,000 left homeless and thousands of houses destroyed in Mascara Province. Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=330 Dip=63 Slip=27 NP2:Strike=227 Dip=66 Slip=150 Principal Axes: (T) Plg=37 Azm=188 (P) Plg=2 Azm=279 Comment: The focal mechanism is moderately well controlled and corresponds to right-lateral strike slip faulting with a moderate reverse component. The preferred fault plane is NP2. RADIATED ENERGY No. of sta: 11 Focal mech. F Energy 5.0+0.9*10**12 Nm CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 16S, 26C Centroid Location: Origin Time 01:13: 9.9 0.3 Lat 35.60N 0.05 Lon 0.36E 0.08 Dep 15.0 FIX Half-duration 2.0 Moment Tensor; Scale 10**17 Nm Mrr=3.24 0.43 Mtt=-3.01 0.25 Mff=-0.23 0.43 Mrt=-4.24 0.84 Mrf=-2.58 0.81 Mtf=-4.33 0.43 Principal Axes: (T) Val=5.42 Plg=65 Azm=165 (N) Val=2.88 Plg=8 Azm=58 (P) Val=-8.30 Plg=23 Azm=325 Best Double Couple:Mo=6.9*10**17 NP1:Strike=40 Dip=23 Slip=70 NP2:Strike=241 Dip=69 Slip=98

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