The Active Volcano in Chile; Cerro Azul

In 1932, a little known volcano covered an area the combined size of Japan, Mexico, and Indonesia in a layer of ash; totaling 4.27 million square kilometers. This eruption was more than 7 times the size of the 1980 eruption of Mount Saint Helens, and also occurred in the Americas. And yet, despite effecting millions of people, this eruption is largely forgotten by the public. This is the story of the Cerro Azul volcano. Thumbnail Photo Credit: Marina Leonova, Pexels, Pexels License, https://www.pexels.com/photo/a-woman-.... This image was resized, cropped, overlaid with text, and overlaid with GeologyHub made graphics (the image border & the GeologyHub logo). A special thanks to the Extreme Pursuit YouTube channel for granting me permission to use clips of his footage! Video Sources from the Extreme Pursuit YouTube channel: [1]    • Dangerously close to a volcano erupting   Extreme Pursuit channel link:    / extremepursuit   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 geologyhubyt@gmail.com 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: Public Domain: https://creativecommons.org/publicdom... CC BY 3.0: https://creativecommons.org/licenses/... Pexels License: https://www.pexels.com/license/ Sources/Citations: [1] Tilling, Robert. (2009). Volcanism and associated hazards: The Andean perspective. Advances in Geosciences. 22. 125-137. 10.5194/adgeo-22-125-2009., CC BY 3.0. Figure 7 in this scientific paper was used as to roughly trace the outline of reported ashfall deposits from the 1932 Cerro Azul eruption. [2] Degruyter, W., Huber, C., Bachmann, O., Cooper, K. M., & Kent, A. J. R. (2017). Influence of exsolved volatiles on reheating silicic magmas by recharge and consequences for eruptive style at Volcán Quizapu (Chile). Geochemistry, Geophysics, Geosystems, 18, 4123–4135. https://doi.org/10.1002/2017GC007219 [3] 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. [4] VEIs, dates/years, composition, bulk tephra volume 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 0:00 A Powerful Eruption 1:15 Cerro Azul Location 1:43 Possible Link to 2 Volcanoes 2:08 Eruptive History 3:15 Quizapu