The alert level was just raised at a volcano in the United States due to new strong unrest. This occurred at the Atka volcano, involving increased earthquakes, the detection of volcanic tremor, elevated sulfur dioxide emissions, and an increased thermal feature temperature. Today's video will discuss this unrest and the overall Atka & Korovin volcanoes. Thumbnail Photo Credit: Plucinski, T. A., Alaska Volcano Observatory / U.S. Geological Survey, https://avo.alaska.edu/image/view/12284. This image was overlaid with text, and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo). If you would like to support this channel, consider using one of the following links: (Patreon: http://patreon.com/geologyhub) (YouTube membership: https://www.youtube.com/channel/UCYeGh5VML5XPr5jYnzh3J6g/join) (Gemstone & Mineral Etsy store: http://prospectingarizona.etsy.com) (GeologyHub Merch Etsy store: http://geologyhub.etsy.com) Google Earth imagery used in this video: ©Google & Data Providers This video is protected under "fair use". If you see an image and/or video which is your own in this video, and/or think my discussion of a scientific paper (and/or discussion/mentioning of the data/information within a scientific paper) does not fall under the fair use doctrine, and wish for it to be censored or removed, contact me by email at [email protected] and I will make the necessary changes. Various licenses used in sections of this video (not the entire video, this video as a whole does not completely fall under one of these licenses) and/or in this video's thumbnail image (and this list does not include every license used in this video and/or thumbnail image): Public Domain: https://creativecommons.org/publicdomain/mark/1.0/ CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] U.S. Geological Survey [2] Alaska Volcano Observatory [3] Alaska Division of Geological & Geophysical Surveys [4] University of Alaska Fairbanks, Geophysical Institute [5] Koulakov, I.; Boychenko, E.; Smirnov, S.Z. Magma Chambers and Meteoric Fluid Flows Beneath the Atka Volcanic Complex (Aleutian Islands) Inferred from Local Earthquake Tomography. Geosciences 2020, 10, 214. https://doi.org/10.3390/geosciences10060214. CC BY 4.0. [6] Source of Volcanic Explosivity Index (VEI) methodology and criteria: Newhall, C. G., and Self, S. (1982), The volcanic explosivity index (VEI) an estimate of explosive magnitude for historical volcanism, J. Geophys. Res., 87(C2), 1231–1238, doi:10.1029/JC087iC02p01231. Accessed / Read by Youtube.com/GeologyHub on Oct 5th, 2022. 0:00 Atka Alert Level Raised 2:09 Eruptive Trends 2:52 Background Information 3:30 1 or 2 Volcanoes? 4:07 Korovin & Kliuchef