Supervolcano Eruptions Could Be Triggered By Earthquakes, Study Says

Supervolcanoes, like the one under Yellowstone National Park, could erupt when earthquakes cause cracks in their magma chambers, a new study reveals.

The findings, published last month in the Journal of Volcanology and Geothermal Research, concludes that supervolcanoes might not erupt for the same reasons as smaller volcanoes. Unlike their smaller counterparts, it's believed that supervolcanoes would erupt if a crack in the roof reached the magma chamber and then the magma erupted toward the surface through such a crack.

One way that could happen? A large earthquake, possibly.

http://www.weather.com/science/news/supervolcanoes-earthquakes-study