If you survive a destructive volcanic eruption, you need to avoid this one thing that is an often overlooked hazard. The crater you see in this video's thumbnail did not form at the eruption's source, but rather the deposits that were emplaced from the eruption. In other words, certain eruptions can create random secondary explosions far away from a source vent, generating crater up to 60 meters or 200 feet wide. Today's video will utilize my opinion-based advice (which could be wrong, keep this in mind) to help people in the future avoid such secondary explosions after certain volcanic eruptions. Thumbnail Photo Credit: U.S. Geological Survey (Data Owner), "Aerial view of explosion pit on pumice plain. Mount St. Helens, Skamania County, Washington. 1980.", USGS Denver Library Photographic Collection, Public Domain, https://library.usgs.gov/photo/index.html#/item/5de6b381e4b02caea0eaee27. This image was overlaid with text and then 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] https://www.youtube.com/watch?v=AwPvCJPpOzg Subscribe to Extreme Pursuit at: https://www.youtube.com/@ExtremePursuit 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/ Sources/Citations: [1] U.S. Geological Survey [2] USGS Denver Library Photographic Collection [3] Alaska Volcano Observatory [4] University of Alaska Fairbanks, Geophysical Institute 0:00 Surviving an Eruption 0:30 Important Advice 0:50 Secondary Explosions 1:42 Why These Form 2:43 Crater Formation Mechanism 3:31 Opinion Based Advice 5:48 2025 Example