The Alaska Volcano Observatory (AVO) is a consortium of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the State of Alaska Division of …

The volcanoes in Alaska make up more than three-quarters of U.S. volcanoes that have erupted in the past 200 years. Most of Alaska’s volcanoes are located along the 2,500 km (1,500 mi) …

[12] 2016 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory, 2020

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137 and G23AC00070. Mention of trade names or commercial products does not …

A map of Mount Spurr, Alaska, showing monitoring stations operated by the Alaska Volcano Observatory and hypocenters of earthquakes that occurred from January 1, 2024 through …

6 days ago · The current eruption of Great Sitkin Volcano began with a single explosive event in May 2021. The ongoing eruption of lava at the summit began shortly afterward, in July 2021. …

Analysis of seismic data indicates a subtle increase in the rate and size of earthquakes over the past few weeks. Because this is a notable departure from the normal background seismicity of …

About AVO About AVO. Staff

Abbey Nastan is a geologist with the Alaska Volcano Observatory. Her work focuses on stewardship of AVO volcanic data, volcano research, and science communication. Prior to …

Feb 4, 2025 · The current eruption of Great Sitkin Volcano began with a single explosive event in May 2021. The ongoing eruption of lava at the summit began shortly afterward, in July 2021. …