EP 108 Monitoring Alaska’s volcanoes with Dr. Matt Haney

Dr. Matt Haney is the Scientist-in-Charge at the Alaska Volcano Observatory, where he leads the charge to monitor and communicate the activity of Alaska’s volcanoes — some of the most closely watched in the world. He explains that there are several ways to count Alaska’s volcanoes, but one of the most striking is this: 54 of them have erupted in the last 300 years. That’s more than any other U.S. state. Most of these volcanoes are found along the Aleutian Arc, a seismically active chain that stretches from Mount Spurr — just 80 miles west of Anchorage — through Cook Inlet and out across the Alaska Peninsula and Aleutian Islands. A few outliers, like Mount Edgecumbe in Southeast and Mount Wrangell near Glennallen, add even more complexity to tracking volcanic activity across Alaska.

As a volcanologist, Matt is part of a network that assesses volcanic risk using the National Volcano Early Warning System, which ranks volcanoes by threat level. In Alaska, five volcanoes are classified as “Very High Threat” — including Mount Spurr, Mount Redoubt and Mount Augustine — not just because they’re active, but because they’re near population centers and critical infrastructure. Mount Spurr is currently under close observation due to signs of volcanic unrest, making it one of the most closely watched in the state. When Spurr last erupted in 1992, it launched ash clouds up to 60,000 feet into the sky and shut down Anchorage’s airport for nearly a full day. Ash fall can disrupt air travel, damage engines and electronics, clog air filters, and cause respiratory problems. Today, with Anchorage serving as the second busiest cargo hub in the U.S. — and the fourth busiest in the world — the stakes of an eruption are even higher.