M 6.5 - 18 km SE of Market Shop, Saint Kitts and Nevis

  • 1985-03-16 14:54:00 (UTC)
  • 17.013°N 62.448°W
  • 13.4 km depth

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Six people injured and damage (VI) on Guadeloupe. Minor damage on Montserrat. Also felt on Antiqua, St. Kitts and Puerto Rico. Several cm. local tsunami recorded at Basse Terre, Guadeloupe. FAULT PLANE SOLUTION: P-Waves NP1:Strike=40 Dip=85 Slip=-1 NP2:Strike=130 Dip=89 Slip=-175 Principal Axes: (T) Plg=3 Azm=265 (P) Plg=4 Azm=355 Comment: The focal mechanism is moderately well controlled and corresponds to strike-slip faulting. The preferred fault plane is not determined. MOMENT TENSOR SOLUTION Dep 16 No. of sta: 14 Moment Tensor; Scale 10**25 d-cm Mrr=0.53 Mtt=4.49 Mff=-5.02 Mrt=-0.03 Mrf=0.53 Mtf=2.77 Principal axes: (T) Val=5.24 Plg=1 Azm=345 (N) Val=0.57 Plg=85 Azm=239 (P) Val=-5.81 Plg=5 Azm=75 Best Double Couple:Mo=5.5*10**25 NP1:Strike=120 Dip=86 Slip=-2 NP2:Strike=210 Dip=88 Slip=-176 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 15S, 31C M.W.: 15S, 30C Centroid Location: Origin Time 14:54: 4.3 0.2 Lat 17.10N 0.01 Lon 62.34W 0.02 Dep 14.0 FIX Half-duration 6.2 Moment Tensor; Scale 10**25 D-CM Mrr=-0.58 0.05 Mtt=4.44 0.05 Mff=-3.86 0.06 Mrt=-0.23 0.14 Mrf=-0.18 0.14 Mtf=0.48 0.04 Principal Axes: (T) Val=4.48 Plg=3 Azm=177 (N) Val=-0.59 Plg=86 Azm=43 (P) Val=-3.89 Plg=3 Azm=267 Best Double Couple:Mo=4.2*10**25 NP1:Strike=312 Dip=86 Slip=0 NP2:Strike=42 Dip=90 Slip=-176

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