shishaldin volcano

Ash clouds from two volcanoes have disrupted air travel in the Aleutians, including Unalaska, preventing some patients from reaching medical care in Anchorage.

Two ash eruptions from Shishaldin Volcano disrupted air travel to the Aleutians Tuesday.

A volcano on Unimak Island in the Eastern Aleutians is on watch for an eruption — Shishaldin is spewing lava at its summit, but the real threat is if it starts to emit ash.

Following a series of flight-canceling explosions, activity at Shishaldin Volcano has decreased over the past three weeks.Matt Haney, a geophysicist with…