Seismic records prior to the eruption of Kasatochi volcano in 2008. Data such as these, when combined with observations from other disciplines, are a primary tool for assessing eruption potential. 

Nearly all volcanic eruptions are preceded and accompanied by earthquakes and/or vigorous ground shaking. Volcanoes produce many other types of “seismicity” as well, sourced by glaciers, erosion, and regional tectonics. The broad array of volcanoes in Alaska provides examples of nearly every type of seismic activity. Volcano seismology has been a staple of research at the Geophysical Institute since the 1970s and leverage many assets including the GI seismology research group, high performance computing facilities, and the Alaska Earthquake Center.

Group contact: Mike West and David Fee