Subject: Re: What's new on the tsunami front?

From: D. C. Jewitt

Submitted: Thu, 19 Dec 2002 11:33:33 -1000 (HST)

Message number: 35 (previous: 34, next: 36 up: Index)

Melosh's main point was that the ocean wave cannot be taller than
the depth of the ocean, whereas some earlier work had allowed that
possibility.  His second point was that the impact tsunami waves
have a shorter wavelength than true deep ocean tsunami waves, and
this allows them to break somewhat offshore.

I think the first point is well taken.  The second needs more
thought (at least on my part).  

Even taking Melosh's points into account, we are still talking about
horrendously big waves.  Maybe not big enough to sweep across the
eastern states to the Appalachians but NY and the coastal cities
would all suffer.  

Would you prefer to be hit by a 16 wheel semi or by a GMC van?  That's
the flavor of the issue at hand.

Dave

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