Supervolcano is beneath Yellowstone [PHOTO\VIDEO]

Supervolcano is beneath Yellowstone [PHOTO\VIDEO], A catastrophic so-called super-eruption of a major volcanic system happens about every 100,000 years, and U.S. researchers say they've found a possible trigger.

According to a Dec. 12 report recently, geologists were shocked after they discovered that the supervolcano beneath Yellowstone is much bigger than previously believed.

Scientists have long considered what could set off such massively destructive events, and researchers from Oregon State University say they think it's a combination of temperature influence and the geometrical configuration of the magma chamber deep beneath the volcano system. Go here for more including photo and video.