Veniaminof 2020/6
Start: June 16, 2020 [1]
Stop: August 20, 2020 [1]
Event Type: Not an eruption
Description: From Orr and others, 2024: "Mount Veniaminof did not erupt in 2020, but it did experience a period of elevated seismicity. Beginning on June 14, 2020, this seismicity was characterized by brief periods of continuous tremor (each lasting ~30 seconds to several minutes) and occasional earthquakes. Although no other signs of unrest were observed, this departure from the volcano’s background seismic activity prompted AVO to increase its Aviation Color Code and Volcano Alert Level to YELLOW and ADVISORY on June 18. The seismicity changed little until early August, when the level of tremor began to gradually decline. The decrease in seismic activity and the lack of evidence for surface change (no increased temperatures or gas emissions) indicated that activity at Mount Veniaminof had returned to background levels. As a result of these observations, AVO decreased the Aviation Color Code and Volcano Alert Level to GREEN and NORMAL on August 20."
References Cited
[1] 2020 volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory, 2024
Orr, T., Cameron, C.E., Dietterich, H.R., Loewen, M.W., Lopez, T., Lyons, J.J., Nakai, J., Power, J.A., Searcy, C., Tepp, G., and Waythomas, C.W., 2024, 2020 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2024-5004, 34 p. https://doi.org/10.3133/sir20245004.
Full-text PDF 13.5 MB [2] Alaska Volcano Observatory website, 2005
Alaska Volcano Observatory, 2005-, Alaska Volcano Observatory website: http://www.avo.alaska.edu.Complete Eruption References
Alaska Volcano Observatory website, 2005
Alaska Volcano Observatory, 2005-, Alaska Volcano Observatory website: http://www.avo.alaska.edu.
Automatic identification and quantification of volcanic hotspots in Alaska using HotLINK: the hotspot learning and identification network, 2024
Saunders-Schultz, P., Lopez, T., Dietterich, H., and Girona, T., 2024, Automatic identification and quantification of volcanic hotspots in Alaska using HotLINK - the hotspot learning and identification network: Frontiers in Earth Science v. 12, 1345104. https://doi.org/10.3389/feart.2024.1345104
Full-text PDF 46.1 MB 2020 volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory, 2024
Orr, T., Cameron, C.E., Dietterich, H.R., Loewen, M.W., Lopez, T., Lyons, J.J., Nakai, J., Power, J.A., Searcy, C., Tepp, G., and Waythomas, C.W., 2024, 2020 Volcanic activity in Alaska - Summary of events and response of the Alaska Volcano Observatory: U.S. Geological Survey Scientific Investigations Report 2024-5004, 34 p. https://doi.org/10.3133/sir20245004.
Full-text PDF 13.5 MB