Three Sisters Volcano Update; Ongoing Magma Intrusion Composition Determined

The Three Sisters Volcano in Oregon is showing signs of unrest, as magma was confirmed to be moving underneath its edifice. This has pushed up the ground overlying the intrusion of magma, which is located approximately 3 miles west of the South Sister. We now know the composition of this magmatic intrusion, and this video will explain why this is important as it relates to what a future eruption, were one to ever occur, might look like. So, is an eruption likely? What is the context of this event? This video will answer these two questions, and discuss what might happen next at this volcano. Thumbnail Photo Credit: Topinka, Lyn, U.S. Geological Survey, Public Domain, https://www.usgs.gov/media/images/thr.... This image was then overlaid with text, in addition to GeologyHub made graphics. 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 fall under one of these licenses) and/or in this video's thumbnail image: Public Domain: https://creativecommons.org/publicdom... CC0 1.0: https://creativecommons.org/publicdom... CC BY 2.0: https://creativecommons.org/licenses/... CC BY 3.0: https://creativecommons.org/licenses/... Sources/Citations: [1] U.S. Geological Survey [2] Cascades Volcano Observatory [3] Poland, M. P., Lisowski, M., Dzurisin, D., Kramer, R., McLay, M., and Pauk, B. (2017). Volcano geodesy in the cascade arc, United States. Bull. Volcanol. 79. doi:10.1007/s00445-017-1140-x [4] Wicks, C.W., Dzurisin, D., Ingebritsen, S., Thatcher, W., Lu, Z. and Iverson, J. (2002). Magmatic activity beneath the quiescent Three Sisters volcanic center, central Oregon Cascade Range, USA. Geophysical Research Letters 29: doi: 10.1029/2001GL014205. issn: 0094-8276. [5] Hawaiian Volcano Observatory [6] YouTube Creative Commons, Link to the source video (used as several clips in the video this text appears underneath):    • ALONE (Senior Edition)  Three Sisters Wild...  , CC BY 3.0 0:00 Three Sisters Volcano 0:29 Still Ongoing Magmatic Intrusion 1:45 Last 10,000 Years of Eruptions at Three Sisters 2:40 Magma Intrusion Composition 3:32 Current Situation 4:13 Conclusion