Observations of the trail of destruction of the Sumatra tsunami of 26 December 2004 indicate remarkable, small‐scale spatial variations, of the order of a few kilometers, of water inundation and destruction in southwestern Sri Lanka [ Shiermeier , 2005; Liu et al. , 2005] that are much smaller than the tsunami wavelength of ∼100 km. For example, the town of Peraliya, was awash with an approximately 1.5‐km water inundation from a wave of 10 m in height; the inundation there carried the passenger train Samudra Devi (the “Ocean Queen”) inland some 50 m, killing 1700 people. Yet,∼3 km south, in Hikkaduwa, there was a mere 2–3 m wave height, 50‐m inundation and no deaths.
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Fernando et al. (2005) studied this question.
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