Huge quake strikes off Indonesia, tsunami warning issued

Discussion in 'Up to the Minute' started by ~n/t~, Apr 11, 2012.

  1. ~n/t~

    ~n/t~ New Member

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  3. ~n/t~

    ~n/t~ New Member

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    8.9 earthquake hits Indonesia, tremors felt in India

    http://timesofindia.indiatimes.com/...remors-felt-in-India/articleshow/12622213.cms
     
  4. ~n/t~

    ~n/t~ New Member

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    Large Aceh quake triggers Indian Ocean tsunami warning

    http://www.bbc.co.uk/news/world-asia-17675399

    The poor woman in the photo looks terrified. :(
     
  5. AnaTeresa

    AnaTeresa New Member

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    Scary. Here's hoping there's no repeat of 2004.
     
  6. Herding Cats

    Herding Cats New Member

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    The tsunami warning has been lifted. There were a few "mini" tsunamis (small waves) that did come ashore, but no damage and more importantly no deaths have been reported.

    The eq was very deep in the crust - something along the lines of 20 miles beneath the surface for the original quake, and perhaps about 10 for the large aftershock. There is some correlation between depth of quake, type of quake, and the resultant tsunami; I don't know all the variables, but it looks like this time, a bullet was dodged.

    Thank God.

    Best-
    Herding Cats
     
  7. Quiche

    Quiche New Member

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    I don't like what the USGS has done with their site. :mad: It's my home page and I don't like changes, darn it! I'm a stick in the mud and I want to stay that way!! :maddening:

    Anyhoo-- obviously this quake has a lot more to offer, imo. A quake that large and deep affects a lot of area above and below it that will shift and settle via aftershocks. But, the 2004 tsunami was generated by a thrusting movement of the ocean floor, this one a slip, or as Reuters put it, a tear, which is much less violent to the volume of water on top of it.

    But, my heavens, there's been some HUGE quakes in the last decade or so.
     
  8. Herding Cats

    Herding Cats New Member

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    the '04 catastrophe was a thrust fault, which means the movement is vertical; and because the thrust was soooooooo large, the water was displaced significantly. This, as you said, Quiche, was a slip fault, where the movement is horizontal, or sideways, and doesn't displace the water as much.

    What I find interesting is that the movement is felt far more widely in slip quakes, and not necessarily as devastatingly, as compared to a thrust quake. Slip quakes "ripple" and thrust quakes "bounce." But the ripple can be felt farther than the bounce, and that's the interesting thing to me. LOL.

    And yes, I don't recall any time in my life (and I've been following quakes for decades), or any that I've read about, where the amount of such large quakes have been compressed into such a short time frame.

    Obviously, the ring of fire is moving, and moving quite radically. Studies have shown that over geological time (meaning eons, LOL), the "bottom" of the earth is moving towards the "top" of the earth. Some very cool computer graphics show how everything was once one really big piece of land, and now, eons later, we have all the different continents, oceans, and archipelagos. It seems as if the "bottom" (e.g. Indonesia, Australia/New Zealand, and the Vanuatu Islands) is splitting further apart, and putting more pressure on the mid Pacific areas (e.g. Japan, Chile, South America) and will eventually put pressure on the "top" areas (e.g. China, Russia, North America).

    I don't like the frequency uptick, and I most certainly don't like the magnitude growth.

    I wonder what's actually going on...all the doom/gloomers are saying it's all about 2012, or (the newer one) 2017, or pole shifts (some merit to that theory), or solar maximum, or planet X and it's gravitational pull...who knows. I don't think anyone knows for sure. I just know it's interesting, and a good reminder to make sure that I have my emergency supplies set and ready, for all the critters and for me.

    Best-
    Herding Cats
     
  9. Herding Cats

    Herding Cats New Member

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