The Geologic Oddity in Hawaii; Kazumura Cave, The World's Longest Lava Tube

Hidden right below the surface in Hawaii is the world's longest lava tube. This cave complex is known as the Kazumura Cave, and measures a whopping 40.7 miles or 65.5 kilometers in length. It can be found east northeast of the Kilauea Iki Crater, having formed during a voluminous eruption approximately 580 years ago. Note: Kazumura Cave is not lit by artificial lighting, like this video's thumbnail image might incorrectly imply. This image does not display the Kazumura Cave, but rather the Thurston Lava Tube which also formed during the 15th century ʻAilāʻau eruption. Thumbnail Photo Credit: D. Boyle, NPS, National Parks Service, Posted by Hawaiian Volcano Observatory, Public Domain, https://www.usgs.gov/media/images/nah.... This image was then resized, overlaid with text, and then overlaid with GeologyHub made graphics (the image border and the GeologyHub logo). 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 completely fall under one of these licenses) and/or in this video's thumbnail image: Public Domain: https://creativecommons.org/publicdom... Sources/Citations: [1] U.S. Geological Survey [2] Hawaiian Volcano Observatory [3] National Parks Service 0:00 The World's Longest Lava Tube 1:16 A 1410 CE Eruption 2:48 Caldera Formation 3:32 Conclusion