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Kilauea Volcano: Examining Hazards from Latest Redirected Flow Event |
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Written by Randy Post
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Sunday, 02 December 2007 |
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In July of 2007, The Big Island's Kilauea began eruting approximately 500,000 cubic meters of lava a day in a direction that has not previously seen lava flows. Most importantly, the northeasterly direction of flow takes it towards Pahoa Village, 11 miles from the erupting fissure but still possibly at risk. Read on for more. (USGS Photo)
According to The Honolulu Advertiser article, Geologists with the U.S. Geological Survey's Hawaiian Volcano
Observatory are using newly available LIDAR data to help supplement
previous DTMs to model possible paths of the lava. Unfortunately,
modeling lava is not like modeling water! The latest eruptions have
created an elevated lava "flume" that is conveying the lava in this new
direction. As the lava spills over the sides of this lava channel, it
cools on the sides and builds it up higher and higher. So far this network of elevated channels has carried flows as far as 3 1/2 miles from the erupting fissure, still well short of the town.
An interesting portion of the article discusses the considerations given to diverting lava flow if it gets to that point. Government officials are concerned with the legal liability of such an action if someone's property is destroyed by the diversion. Also, they mention the cultural issues that would be raised by such a plan.
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Last Updated ( Sunday, 02 December 2007 )
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