SEATTLE (AP) — A new study of Mount St. Helens aims to look deep — about 60 miles down to the zone where tectonic plates collide and magma rises.

The study is one of the first to examine the plumbing between the mantle and the volcano, said one of the principle investigators, University of Washington Professor John Vidale. Imaging the reservoirs of molten rock beneath the volcano would help quantify the risk of an eruption and could help predict the danger at volcanoes around the world.