Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Tsunamis and earthquake thrusts

  1. Apr 5, 2014 #1


    User Avatar

    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
  3. Apr 6, 2014 #2


    User Avatar
    Science Advisor
    Gold Member

    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


    User Avatar

    Staff: Mentor

    The earthquake off Banda Aceh was mag 9.1, so a very powerful earthquake with a large volume of displacement.

    http://earthquake.usgs.gov/earthquakes/eqinthenews/2004/us2004slav/#details [Broken]

    More on recent Indonesian earthquakes - https://www.eeri.org/category/learning-from-earthquakes/indonesia/
    Last edited by a moderator: May 6, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Tsunamis and earthquake thrusts
  1. ?Tsunami Question? (Replies: 7)

  2. An earthquake (Replies: 4)

  3. Tsunami signature? (Replies: 1)

  4. Tsunami Model? (Replies: 2)

  5. NZ Earthquakes (Replies: 32)