Akutan non-eruptive activity 2005
Start: January 1, 2005 [1]
Stop: July 1, 2019 ± 6 Months [2]
Event Type: Not an eruption
Description: From Cameron and others, 2023: "In 2018, Akutan Volcano continued its long-term reinflation, which AVO has recorded since the installation of a GPS network at the volcano in 2005. The deformation was slightly faster in 2018 compared to its long-term rate. DeGrandpre and others (2017) noted that inflation at Akutan Volcano is episodic and suggested a shallow magma reservoir resides 6-10 km [3.7-6.2 mi] beneath the volcano. Continued inflation of the volcano is consistent with an ongoing accumulation of magma at shallow levels. The Aviation Color Code and Volcano Alert Level for the volcano remained at GREEN and NORMAL throughout 2018."
From Orr and others, 2023: "In prior years, activity at Akutan Volcano was characterized by a pattern of long-term reinflation, first observed after AVO field crews installed a Global Positioning System (GPS) network on the volcano in 2005. In 2019, however, the volcano deviated from this long-term trend by showing no systematic deformation that could be confidently linked to a volcanic source."
From Orr and others, 2023: "In prior years, activity at Akutan Volcano was characterized by a pattern of long-term reinflation, first observed after AVO field crews installed a Global Positioning System (GPS) network on the volcano in 2005. In 2019, however, the volcano deviated from this long-term trend by showing no systematic deformation that could be confidently linked to a volcanic source."
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References Cited
[1] 2018 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023
Cameron, C.E., Orr, T.R., Dixon, J.P., Dietterich, H.R., Waythomas, C.F., Iezzi, A.M., Power, J.A., Searcy, C., Grapenthin, R., Tepp, G., Wallace, K.L., Lopez, T.M., Degrandpre, K., and Perreault, J.M., 2023, 2018 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5029, 68 p., https://doi.org/10.3133/sir20235029.
Full-text PDF 35.5 MB [2] 2019 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023
Orr, T.R., Cameron, C.E., Dietterich, H.R., Dixon, J.P., Enders, M.L., Grapenthin, R., Iezzi, A.M., Loewen, M.W., Power, J.A., Searcy, C., Tepp, G., Toney, L., Waythomas, C.F., and Wech, A.G., 2023, 2019 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5039, 64 p., https://doi.org/10.3133/sir20235039.
Full-text PDF 14.3 MB Complete Eruption References
2018 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023
Cameron, C.E., Orr, T.R., Dixon, J.P., Dietterich, H.R., Waythomas, C.F., Iezzi, A.M., Power, J.A., Searcy, C., Grapenthin, R., Tepp, G., Wallace, K.L., Lopez, T.M., Degrandpre, K., and Perreault, J.M., 2023, 2018 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5029, 68 p., https://doi.org/10.3133/sir20235029.
Full-text PDF 35.5 MB 2019 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory, 2023
Orr, T.R., Cameron, C.E., Dietterich, H.R., Dixon, J.P., Enders, M.L., Grapenthin, R., Iezzi, A.M., Loewen, M.W., Power, J.A., Searcy, C., Tepp, G., Toney, L., Waythomas, C.F., and Wech, A.G., 2023, 2019 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2023-5039, 64 p., https://doi.org/10.3133/sir20235039.
Full-text PDF 14.3 MB