Makushin non-eruptive activity 2019
Start: May 15, 2019 [1]
Stop: June 22, 2019 [1]
Event Type: Not an eruption
- Seismicity with no confirmed eruption [1]
Description: From Orr and others, 2023: "Earthquake swarms are common at Makushin Volcano and several took place in 2019. Most swarms consisted of fewer than 10 events each; however, two more prominent swarms (on May 15 and June 18) contained more than 40 events each. Earthquakes in both swarms were located at depths of 5-10 km. The May 15 swarm comprised 45 earthquakes, located 17 km [10.6 mi] east of the volcano’s summit, and the June 18 swarm comprised 66 earthquakes, located 1-3 km southeast of the summit. A third, smaller swarm of 19 earthquakes took place on June 22, at similar depths to the earlier swarms and 11-12 km east-southeast of the summit. The Aviation Color Code and Volcanic Alert Level of Makushin Volcano remained at GREEN and NORMAL throughout the year."
References Cited
[1] 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
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