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Visitors kept away from Hawaii volcano |
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Written by From asap
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Wednesday, 20 December 2006 |
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 Stay back! Visitors to Kilauea are being kept hundreds of feet away from a 55-acre lava delta because it may soon collapse into the Pacific Ocean.
Lava is continuing to flow into the ocean off the west side and tip of the expanding black delta, while small breakouts of lava from higher up the slopes were described as "resembling a string of holiday lights."
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ABOUT KILAUEA
It is one of the world's most active volcanoes since 1983 and star attraction of Hawaii Volcanoes National Park. Some visitors are treated to spectacular displays as molten lava spews into the ocean, but these days most are missing the show, partly because of the long hikes to the best viewpoints and the danger of collapsing lava.
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LAVA FLOW
The flow repeatedly builds up and then takes away land from Hawaii's slowly expanding Big Island. Rather than blowing its top, Kilauea's ongoing eruption pushes molten lava through a network of tubes under the thin lava crust. Lava hitting the water at 2,200 degrees forms a rough and unstable mass of lava, rock and sand. It doesn't become a relatively smooth, paving-like surface until the lava builds up above the water.
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THE NEXT COLLAPSE
Some predict the next giant lava collapse could be bigger than the rapid crumbling of 44 acres over 4 1/2 hours on Nov. 28, 2005. That collapse brought down a section of sea cliff and sent molten rock and boulders rocketing into the air.
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