Explosive eruption at Alaska's Shishaldin Volcano sends ash cloud to nearly 30,000 feet

Pavlof Volcano erupts in Alaska

The eruption of Augustine Volcano in Alaska nearly 20 years ago is stilll leading to new discoveries. The latest comes from graduate student researcher Valerie Wasser at the University of Alaska Fairbanks Geophysical Institute. She analyzed extremely small crystal clots, each polished to the thickness of a human hair or thinner, to determin that the addition of hot new magma into Augustine’s reservoir of cooler, older magma increased the pressure enough to trigger the 2006 eruption. Wasser’s ana

Unrest at Alaska's Mount Spurr volcano prompts alert level increase in Anchorage as fears of eruption grow