Quake swarms at neighboring Alaska volcanoes raise concerns

PO1 William "Chip" Nagel
..."How unusual is it for two active volcanoes to be so close together?
Having two volcanoes this close and both in a state of unrest is very unusual in Alaska, Power said, even though there are such occurrences elsewhere in the world.

For example, Mauna Loa and Kilauea both were erupting at the same time last year on Hawaii’s Big Island.

“It is unusual that ... we’re seeing earthquakes under both centers at the same time and actually between the centers, something which suggests to us that there’s probably something larger afoot here in the subsurface, the magma and so on beneath the volcanoes,” Power said."