A strong earthquake swarm just occurred at a volcano in Iceland, causing the Bardarbunga volcano's alert level to be raised. Occurring within the Vatnajokull ice cap, today's video will speculate why the earthquake swarm might have happened through the opinion and analysis of a geologist. Thumbnail Photo Credit: This work "Bardarbunga5", is a derivative of a photo (resized, cropped, text overlay, overlaid with GeologyHub made graphics (the image border & the GeologyHub logo)) from "Bárðarbunga", by: Náttúruminjasafn Íslands, Náttúruminjasafn Íslands // Icelandic Museum of Natural History, 2022, Posted on Flickr, Flickr account link: https://www.flickr.com/photos/189839024@N08/, Photo link: https://www.flickr.com/photos/189839024@N08/52168587892/, CC BY 2.0. "Bardarbunga5" is used & licensed under CC BY 2.0 by Youtube.com/GeologyHub Update #1: Before this video went live, Bardarbunga’s alert level was lowered back to green due to greatly diminished seismic activity from the earthquake swarm peak. 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 2.0: https://creativecommons.org/licenses/by/2.0/legalcode CC BY 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] Troll, V. R., Deegan, F. M., Thordarson, T., Tryggvason, A., Krmíček, L., Moreland, W. M., Lund, B., Bindeman, I. N., Höskuldsson, Á., & Day, J. M. D. (2024). The Fagradalsfjall and Sundhnúkur Fires of 2021–2024: A single magma reservoir under the Reykjanes Peninsula, Iceland? Terra Nova, 00, 1–10. https://doi.org/10.1111/ter.12733. CC BY 4.0. [2] Vedur.is / Iceland Met Office [3] U.S. Geological Survey 0:00 Bardarbunga Volcano 0:45 Possible Causes 2:46 Recent Eruptions 3:53 2025 Comparison 4:10 2014 Earthquakes