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Saturday, March 31, 2012

Growing Lava Dome Krakatau Volcano

Krakatau, a small island group in the Sunda Strait between the islands of Sumatra and Java is one of the world's most famous volcanoes. It is a mostly submerged caldera with 3 outer islands belonging to the rim and a new cone, Anak Krakatau, that has been forming a new island since 1927 and remains highly active. 


Krakatau erupting on May 27, 1883. <

Krakatau exploded spectacularly in a devastating Plinian eruption 1883 that killed more than 30,000 people (mostly by the huge tsunamis triggered by the eruption). The eruption was one of the first global news events after telegraph lines had connected the different continents.



Current statuserupting (4 out of 5)
1000 km
500 mi
Map



Background:

The renowned volcano Krakatau (or Krakatoa) lies in the Sunda Strait between Java and Sumatra. Collapse of the ancestral Krakatau edifice, perhaps in 416 AD, formed a 7-km-wide caldera. Remnants of this ancestral volcano are preserved in Verlaten and Lang Islands; subsequently Rakata, Danan and Perbuwatan volcanoes were formed, coalescing to create the pre-1883 Krakatau Island. Caldera collapse during the catastrophic 1883 eruption destroyed Danan and Perbuwatan volcanoes, and left only a remnant of Rakata volcano. This eruption, the 2nd largest in Indonesia during historical time, caused more than 36,000 fatalities, most as a result of devastating tsunamis that swept the adjacent coastlines of Sumatra and Java. Pyroclastic surges traveled 40 km across the Sunda Strait and reached the Sumatra coast. After a quiescence of less than a half century, the post-collapse cone of Anak Krakatau (Child of Krakatau) was constructed within the 1883 caldera at a point between the former cones of Danan and Perbuwatan. Anak Krakatau has been the site of frequent eruptions since 1927. 
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Source: GVP, Smithsonian Institution


Product Details

The Krakatau Eruption (True Books) by Peter Benoit (Paperback - Mar 2011)

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Krakatau (Anak Krakatau) Photos:

Source:     Volcano Discovery


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Krakatau: The Destruction and Reassembly of an Island Ecosystem by I. W. B. Thornton (Paperback - Sep 1, 1997)

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Super Volcano: The Ticking Time Bomb Beneath Yellowstone National Park by Greg Breining (Paperback - Feb 15, 2007)

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1 comment:

  1. Brad Hopper2:09 PM

    Krakatau explode story was one of the devastating experience in human experience. Lots of people died during that explosion and I hope similar type of condition will never cause again. Thanks for educative post.
    famous volcanoes

    ReplyDelete

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