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The towering Mount Spurr volcano in the United States is deemed likely to erupt in the coming weeks to months, where it is expected to produce a major explosive eruption. But, how much risk truly is there to nearby communities, and what precautions need to be taken? This video will answer these two questions through the perspective of a geologist. Towns which could be affected by an eruption include Anchorage, Kenai, and Whittier in Alaska. Visit this useful U.S.G.S. website for more information about volcanic ash impact mitigation if Mount Spurr does end up erupting: https://volcanoes.usgs.gov/volcanic_ash/ Note: Mount Spurr still has a double-digit chance of not erupting, but the odds in 2025 of the volcano producing an eruption currently seem to be hovering above 50%. Also note that the hazard areas are based purely on the opinion of GeologyHub, and they could end up being proven as inaccurate or as poor guidance. Thumbnail Photo Credit: Mitchell, Mitch, Alaska Volcano Observatory / U.S. Geological Survey, https://avo.alaska.edu/image/view/196407. This image was overlaid with text & 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: / geologyhub ) (YouTube membership: / @geologyhub ) (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/publicdom... CC0 1.0: https://creativecommons.org/publicdom... CC BY 4.0: https://creativecommons.org/licenses/... Sources/Citations: [1] U.S. Geological Survey [2] Alaska Volcano Observatory [3] University of Alaska Fairbanks, Geophysical Institute [4] Alaska Division of Geological & Geophysical Surveys [5] McGimsey, Robert G., Neal, Christina A., Riley, Colleen M., 2001, Areal Distribution, Thickness, Mass, Volume, and Grain Size of Tephra-Fall Deposits from the 1992 Eruptions of Crater Peak Vent, Mt. Spurr Volcano, Alaska: U.S. Geological Survey Open-File Report 01-370, 38 pp., https://pubs.usgs.gov/of/2001/0370/. Note: This source was used to cite the 1992 ash/tephra thickness maps. [6] VEIs, dates/years, composition, & bulk tephra volume estimates for volcanic eruptions shown in this video which were assigned a VEI 4 or larger are sourced from the LaMEVE database (British Geological Survey © UKRI), https://www2.bgs.ac.uk/vogripa/view/c..., Used with Permission [7] 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 / geologyhub on Oct 5th, 2022. [8] Waythomas, Christopher F.; Nye, Christopher J., 2001, Preliminary Volcano-Hazard Assessment for Mount Spurr Volcano, Alaska: U.S. Geological Survey Open-File Report 01-482, 40 pp., https://pubs.usgs.gov/of/2001/0482/. Note: This source was used to trace the 10 million cubic meter lahar hazard zone for Mount Spurr. 0:00 Mt. Spurr Likely to Erupt 0:41 Risk Scale 1:04 Most at Risk Areas 2:25 Vehicle Impacts 4:43 Further Information