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<strong>Journal</strong> <strong>of</strong> 9/<strong>11</strong> <strong>Studies</strong> Volume 34, November 2012FiguresFigures are shown as published by the LDEO without modification <strong>of</strong> their scales, whichare not uniform.Captions <strong>of</strong> Figures 1 and 2 :the “start time” is expressed in Universal Time with the date; the time in bold print isthe local timethe horizontal axis is the wave propagation time axis in seconds (“s”)the vertical axis represents the ground displacement (here horizontal) indicated onright by the marks 0 to 10 (Figures 1a, 1b and 2c) or 0 to 100 (Figures 2a and 2b)PAL : Palisades station ; E : short periods ; H : high gain ; E : compound eastFilter : 0.6-5 Hz.8:46:30Figure 1a: Seismic waves recorded at Palisades closest to the time <strong>of</strong> aircraft impact onWTC<strong>11</strong>7
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