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Renewed unrest at Mount Spurr Volcano, Alaska

January 1, 2004

The Alaska Volcano Observatory (AVO),a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys, has detected unrest at Mount Spurr volcano, located about 125 km west of Anchorage, Alaska, at the northeast end of the Aleutian volcanic arc.

This activity consists of increased seismicity melting of the summit ice cap, and substantial rates of C02 and H2S emission.The current unrest is centered beneath the volcano's 3374-m-high summit, whose last known eruption was 5000–6000 years ago. Since then, Crater Peak, 2309 m in elevation and 4 km to the south, has been the active vent. Recent eruptions occurred in 1953 and 1992.

Citation Information

Publication Year 2004
Title Renewed unrest at Mount Spurr Volcano, Alaska
DOI 10.1029/2004EO430004
Authors John A. Power
Publication Type Article
Publication Subtype Journal Article
Series Title Eos, Transactions, American Geophysical Union
Series Number
Index ID 70182800
Record Source USGS Publications Warehouse
USGS Organization Alaska Science Center