[meteorite-list] re: Tsunami from impact

From: Marco Langbroek <marco.langbroek_at_meteoritecentral.com>
Date: Tue Dec 28 11:14:49 2004
Message-ID: <008701c4ecf8$476e9310$9600000a_at_HAL>

Martin wrote:

> As You all see in TV, Indonesia and other countries was devastated by
> Tsunami produced by big Earthquake. How You think, what size of
> meteorite/asteroide can produce the same effects ?

The results on tsunami generation differ from model to model, sometimes
considerably. Moreover, it is also dependant on entry speed and composition of
the impactor.

But taking one source (Hills & Goda's modellling, "The breakup of small
asteroids in the atmosphere", Astronomical Journal 105 (1993), 1114-1144), this
indicates that for a 10 yards heigh tsunami when reaching shore at 1000 km of
the source, this corresponds to an impactor body roughly 50-100 yards wide.

- Marco

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Dr Marco Langbroek
Dutch Meteor Society (DMS)
Leiden, the Netherlands
52.15896 N, 4.48884 E (WGS 84)

e-mail: meteorites_at_dmsweb.org
DMS website: http://www.dmsweb.org
priv. website: http://home.wanadoo.nl/marco.langbroek
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Received on Tue 28 Dec 2004 11:13:19 AM PST