Good question.

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Good question.

Tom Brosz — 12/29/2004 11:10:31 PM (archived)

There is a major difference between many earthquake-related waves and an impact wave. By definition, an impact will be centralized at a certain point, and the displacement of water will be related to the impact at that point.

In an earthquake, it is possible for large areas of seafloor to change position at the same time, resulting in a large, widely-spread displacement of water. I'm not sure one can easily draw an equivalence between the two.

The whole thread (15 posts)

The Sumatran Earthquake Tsunami - ebnelson - 12/29/2004 11:04:42 PM
- Good question. - Tom Brosz - 12/29/2004 11:10:31 PM
  - This tsunami seems different - ebnelson - 12/30/2004 4:09:10 PM
  - Discussed here - Larry J - 12/30/2004 1:43:57 AM
    - So even a small impactor could cause much worse destruciton - ebnelson - 12/30/2004 4:28:22 PM
      - Perhaps - Larry J - 12/30/2004 8:18:15 PM
        
        Finally Found Documentation 10.5 Meter Waves At Phuket - Mark Eby - 1/3/2005 7:28:47 PM
        
        Arrrgh - Mark Eby - 1/3/2005 7:30:07 PM
        
        Comments From UK NEO Report - Mark Eby - 12/30/2004 10:15:49 PM
        
        Correction - Chile Quake Biggest Ever 9.5 - Mark Eby - 12/31/2004 4:37:32 AM
    - re: Discussed here - Marcia - 12/30/2004 3:59:03 AM
  - It would be interesting to study before and after topographical maps of the region. - Scott Evil - 12/29/2004 11:28:06 PM
    - Quake shifts islands/Quake may have made Earth wobble - SteveS - 12/30/2004 1:56:14 AM
      - 0.0027 seconds/day - Fox - 12/30/2004 3:26:03 AM
        
        Leap Seconds - SteveS - 12/30/2004 3:59:35 PM

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