oil-field-bBigger than the island of Manhattan, the lava flow from the Holuhraun lava field in Iceland is now the largest the country has seen in more than 200 years, according to NASA’s Earth Observatory. Since August of last year, massive amounts of lava have been spewing from a fissure that erupted in Iceland’s largely uninhabited Bárðarbunga volcanic system. In the past six months, the lava flow spread a total of 32 square miles, making it now the largest lava flow since the 1783–84 Laki eruption that wiped out 20 percent of Iceland’s population. According to the University of Iceland’s Institute of Earth Sciences, the eastern part of the lava field was about 30 feet thick, and the center and western parts were about 40 feet thick. More