This October 25, 2014 photo provided by the U.S. Geological Survey shows a Hawaii Volcano Observatory geologist standing on a partly cooled section of lava flow near the town of Pahoa on the Big Island of Hawaii. Note the thin red horizontal line of molten lava visible along the bottom third of the photo. The flow here is about one meter (three feet) thick, but slightly farther upslope where the lava has had more time to inflate the thickness was closer to two meters. (Photo by AP Photo/U.S. Geological Survey)
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