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Busting Myths About One of the Largest Volcanic Systems in the World - The Top 10 Misconceptions about Yellowstone Volcanism By Michael Poland, USGS Scientist-in-charge, Yellowstone Volcano Observatory Contrary to popular belief, Yellowstone is not "overdue" for eruption. Volcanoes don't work that way. Yellowstone experiences thousands of earthquakes every year, but these are not a sign of the volcano getting ready to erupt. Despite its reputation, most eruptions from Yellowstone are lava flows, not massive explosions. November 18th, 2021 at 7:00PM (PST)