Tsunamis and earthquake thrusts

  1. Astronuc

    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
  2. jcsd
    Earth sciences news on Phys.org
  3. davenn

    davenn 3,477
    Science Advisor
    Gold Member
    2014 Award

    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

    cheers
    Dave
     
  4. Astronuc

    Staff: Mentor

    Last edited: Apr 6, 2014
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