Public Release: 3-Sep-2018
New imagery solves mystery of why Mount St. Helens is out of line with other volcanoes
Oregon State University
CORVALLIS, Ore. - Some of the clearest, most comprehensive images of the top several miles of the Earth's crust have helped scientists solve the mystery of why Mount St. Helens is located outside the main line of the Cascade Arc of volcanoes.
A giant subsurface rock formation some 20-30 miles in diameter, known as the Spirit Lake batholith, appears to have diverted magma and partially melted rock outside of the arc and to the west, forming the region's most active volcano.
https://www.eurekalert.org/pub_releases/2018-09/osu-nis083118.php
