Tsunamis and earthquake thrusts

  1. Apr 5, 2014 #1


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    Staff: Mentor

    I came across an interesting video on three massive earthquakes and the thrusts that caused tsunamis.

    Just because an earthquake is large, i.e., mag 7 or mag 8 or greater, and in the ocean doesn't mean it will produce a tsunami. It does depend on the depth and location as well, and how much elastic energy is stored in the mass (or volume) of crust, and the displacement.
    Last edited by a moderator: Sep 25, 2014
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  3. Apr 6, 2014 #2


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    Hi Astronuc

    interesting video describing why there are variations in tsunami height

    from what I have so far read, this latest Chilean event produced a tsunami of only ~ 2 metres ( fortunately!!)

    Would have been good to have seen what reasons they had considered specifically for the Sumatran event

  4. Apr 6, 2014 #3


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    Staff: Mentor

    Last edited: Apr 6, 2014
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