Lava tornadoes, tundra explosions, and blue lava are all legitimately dangerous geologic hazards that just so happen to be both uncommon and lesser known. Today's video discusses 8 such uncommon geologic hazards which can pose the risk of property destruction or the risk of injury or worse. This video was made by a geologist who explains each example in great detail. If you would like to support this channel, consider using one of the following links: (Patreon: http://patreon.com/geologyhub) 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] U.S. Geological Survey [2] Hawaiian Volcano Observatory [3] Zhang, Sen & Qigang, Jiang & Shi, Chao & Xu, Xitong & Gong, Yundi & Xi, Jing & Liu, Wenxuan & Liu, Bin. (2021). Application of Sentinel-1 and-2 Images in Measuring the Deformation of Kuh-e-Namak (Dashti) Namakier, Iran. Remote Sensing. 13. 785. 10.3390/rs13040785. CC BY 4.0. [4] Finn Hirslund, A single limnic eruption at the origin of today's large-scale density structure of Lake Kivu, Journal of African Earth Sciences, Volume 161, 2020, 103614, ISSN 1464-343X, https://doi.org/10.1016/j.jafrearsci.2019.103614. (https://www.sciencedirect.com/science/article/pii/S1464343X19302699) [5] Melián G. V., Toulkeridis T., Pérez N. M., Hernández P. A., Somoza L., Padrón E., Amonte C., Alonso M., Asensio-Ramos M., Cordero M., Geochemistry of Water and Gas Emissions From Cuicocha and Quilotoa Volcanic Lakes, Ecuador, Frontiers in Earth Science, Volume 9, 2021, https://www.frontiersin.org/articles/10.3389/feart.2021.741528, DOI: 10.3389/feart.2021.741528, ISSN: 2296-6463, CC BY 4.0 [6] Michele L. Tuttle, Michael A. Clark, M.D., Harry R. Compton, Joseph D. Devine, William C. Evans, Alan M. Humphrey, George W. Kling, Edward J. Koenigsberg, M.D., John P. Lockwood, Glenn N. Wagner, D.O., The 21 August 1986 Lake Nyos Gas Disaster, Cameroon, Department of the Interior, U.S. Geological Survey, Open-File Report 87-97 [7] Monahan, T., Tang, T., Roberts, S. et al. Observations of the seiche that shook the world. Nat Commun 16, 4777 (2025). https://doi.org/10.1038/s41467-025-59851-7, CC BY 4.0. [8] Rauter, M., Viroulet, S., Gylfadóttir, S.S. et al. Granular porous landslide tsunami modelling – the 2014 Lake Askja flank collapse. Nat Commun 13, 678 (2022). https://doi.org/10.1038/s41467-022-28296-7, CC BY 4.0. [9] 2020, Strzelecki, M. C. and Jaskólski, M. W., European Geosciences Union; Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland, Nat. Hazards Earth Syst. Sci., 20, 2521–2534, https://doi.org/10.5194/nhess-20-2521-2020, 2020. CC BY 4.0. [10] Schöpa, A., Chao, W.-A., Lipovsky, B. P., Hovius, N., White, R. S., Green, R. G., and Turowski, J. M.: Dynamics of the Askja caldera July 2014 landslide, Iceland, from seismic signal analysis: precursor, motion and aftermath, Earth Surf. Dynam., 6, 467–485, https://doi.org/10.5194/esurf-6-467-2018, 2018., CC BY 4.0 [11] Donati D, Stead D, Geertsema M, Bendle JM, Menounos B and Borgatti L (2022) Kinematic Analysis of the 2020 Elliot Creek Landslide, British Columbia, Using Remote Sensing Data. Front. Earth Sci. 10:916069. doi: 10.3389/feart.2022.916069 [12] Franco, Andrea & Schneider-Muntau, Barbara & Roberts, Nicholas & Clague, John & Gems, Bernhard. (2021). Geometry-Based Preliminary Quantification of Landslide-Induced Impulse Wave Attenuation in Mountain Lakes. Applied Sciences. 11. 11614. 10.3390/app112411614., CC BY 4.0. [13] Chuvilin E, Stanilovskaya J, Titovsky A, Sinitsky A, Sokolova N, Bukhanov B, Spasennykh M, Cheremisin A, Grebenkin S, Davletshina D, et al. A Gas-Emission Crater in the Erkuta River Valley, Yamal Peninsula: Characteristics and Potential Formation Model. Geosciences. 2020; 10(5):170. https://doi.org/10.3390/geosciences10050170, CC BY 4.0. 0:00 Lava Tornado 1:23 Tundra Explosion 3:16 Blue Lava 4:27 Salt Glacier 5:24 Hydrothermal Explosion 6:32 Limnic Eruption 7:41 Inland Tsunami 8:21 Mud Volcano Explosion 9:54 Conclusion