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| Volcanoes 'reload' with magma, making them more di | |
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| Tweet Topic Started: Oct 11 2008, 02:34 PM (267 Views) | |
| XNavyGunner | Oct 11 2008, 02:34 PM Post #1 |
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Gunner
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Volcanoes are more difficult to predict than previously thought because they are able to 'reload' with molten lava, scientists have found. A study of an active volcano on the Caribbean island of Montserrat revealed a new level of complexity in its structure. Rather than a gradual build-up or 'ballooning' of magma deep underground which eventually erupts when the pressure becomes too great, scientists found that the volcano continually "pulses" leading to a series of irregular eruptions. The Soufričre Hills volcano on Montserrat, which is a UK territory, has been erupting since 1995. Two years later more than 20 people were killed and thousands of people were left homeless in a huge eruption. Molten lava and avalanches of hot rocks thrown out by the volcano destroyed the capital town of Plymouth as well as the island's airport. It resulted in many inhabitants quitting the island with a population of 13,000 reducing to 4,500. The study was carried out by a team of scientists from the University of East Anglia (UEA) in the UK and Penn State University and the University of Arkansas in the US and is published in the latest edition of the journal Science. Based at the Montserrat Volcano Observatory they measured the surface lava flow through a carefully-mapped section of the dome. Using a global positioning system (gps) they were able to calculate how much the sides of the volcano expanded and deflated as the magma surged to the surface. Richard Herd of UEA said: "I worked on Montserrat for seven years and saw at first hand the terrible devastation inflicted by the Soufričre Hills Volcano. "Our findings show volcanic eruptions to be even more complex than we had originally believed and illustrate the urgent need for further research into this and other volcanoes." Source |
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| Isis | Oct 17 2008, 05:23 AM Post #2 |
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The Goddess of Darkness & Desire
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It's scary to think they can't really predict when a volcanoe will reload and explode..
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![]() ![]() ![]() ![]() Isis, The Goddess of Desire & Darkness. In The Darkness, We Find The Light. This is a Drama Free Zone..! | |
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| LarryOldtimer | Oct 18 2008, 07:07 PM Post #3 |
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The Man!!!
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Just like some storms I have seen, volcanoes can just erupt . . . with no warning signs at all. They can come out of nowhere, with no warning signs at all. Just the way life on Earth is, and not something to dwell upon. Just don't go there if you don't have to. Get away when there are warning signs. Good thing to have a few bucks saved . . . time for a vacation, I would say. |
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2:21 AM Jul 11