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Major M 7.8 quake SW of Sumatra, Indonesia

  1. Mar 2, 2016 #1

    davenn

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    Science Advisor
    Gold Member

    The M 7.8 event was centred some 800km SW of Sumatera.
    This is the largest event, world wide so far this year

    Time: 2016-03-02 12:49:48 UTC
    Location: 4.908°S 94.275°E
    Depth: 24.0 km

    A tsunami alert was released but cancelled soon after.
    Here is a tectonic summary from the USGS


    this event wiped out my high gain channel of the long period vertical sensor
    http://www.sydneystormcity.com/seismograms.htm

    more easily readable on the low gain channel of the same sensor
    http://www.sydneystormcity.com/zlo1.gif

    cheers
    Dave
     
    Last edited: Mar 2, 2016
  2. jcsd
  3. Mar 2, 2016 #2

    jedishrfu

    Staff: Mentor

    We don't get too many of these here in Texas. However Oklahoma's been getting a few lately that folks believe come from oil frakking but no one will admit to it.

    The last one I recall was in upstate NY around 1980, I think it was a 2 or 3 on the richter scale just a little shake. At first I thought it was the building but then heard about it on the radio. Shook up a lot of people who never felt one before.

    http://earthquaketrack.com/us-ny-schenectady/recent
     
  4. Mar 2, 2016 #3

    Astronuc

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    Staff: Mentor

    http://earthquake.usgs.gov/earthquakes/eventpage/us10004u1y#general_region

    Time - 2016-03-02 12:49:48 (UTC)
    Loction: Lat 4.908 °S, Long 94.275 °E
    Depth=24.0 km (14.9 mi)

    Distance to nearest major cities:
    659km (409mi) SW of Muara Siberut, Indonesia
    804km (500mi) SW of Pariaman, Indonesia
    805km (500mi) WSW of Padang, Indonesia
    843km (524mi) WSW of Solok, Indonesia
    849km (528mi) NNW of West Island, Cocos Islands

    A couple of aftershocks
    5.1 Southwest of Sumatra, Indonesia 2016-03-02 15:12:08 UTC 16.4 km
    http://earthquake.usgs.gov/earthquakes/eventpage/us10004u2r#general_region
    5.5 Southwest of Sumatra, Indonesia 2016-03-03 00:10:50 UTC 10.0 km
    http://earthquake.usgs.gov/earthquakes/eventpage/us10004u8f#general_region
     
  5. Mar 3, 2016 #4
    I remember on the news back in 2004, the dreadful Boxing Day earthquake that took so many lives.

    This is a concern: http://www.stuff.co.nz/world/asia/7...tsunami-warning-buoys-down-when-big-quake-hit

     
  6. Mar 4, 2016 #5

    Astronuc

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    Staff: Mentor

    A few more aftershocks in the area

    4.7 Southwest of Sumatra, Indonesia
    2016-03-03 12:52:59 UTC
    Location 4.837°S 94.590°E
    10.0 km

    4.7 Southwest of Sumatra, Indonesia
    2016-03-03 12:52:59 UTC
    Location 4.657°S 94.522°E
    10.0 km

    4.8 Southwest of Sumatra, Indonesia
    2016-03-04 08:09:54 UTC
    Location 4.907°S 94.593°E
    13.3 km
     
  7. Mar 8, 2016 #6
    Also from this article:
    This is ridiculous. But sadly unsurprising.
     
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