Earlier today, a deadly & damaging M6.8 earthquake struck Japan, specifically in a densely populated segment of Kyushu. Striking at shallow depths, it appears that MMI 10, or if not, at least MMI 9 intensity shaking occurred in some spots, leading to some buildings and structures partially or fully collapsing. Today's video will discuss why this earthquake occurred, and its relation to the Futagawa-Hinagu Fault Zone through the knowledge and analysis of a geologist. Thumbnail Photo Credit: Google Earth, Image Landsat / Copernicus, Data SIO, NOAA, U.S. Navy, NGA, GEBCO, Data Japan Hydrographic Association. This image was overlaid with text, and then overlaid with GeologyHub made graphics (the image border & the GeologyHub logo). Note: This video's title refers to the fact that ALL M6 range earthquakes, regardless of depth earn the moniker of "strong". A special thanks to the EarthquakeSim YouTube channel for granting me permission to use clips of his footage! Video Sources from the EarthquakeSim YouTube channel: [1] https://www.youtube.com/watch?v=nQZvfi7778M [2] https://www.youtube.com/watch?v=Jy_4G7ig5Gw Subscribe to EarthquakeSim at: https://www.youtube.com/@EarthquakeSim 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 4.0: https://creativecommons.org/licenses/by/4.0/legalcode Sources/Citations: [1] U.S. Geological Survey [2] Japanese Meteorological Agency [3] Gabsatarov, Y.; Vladimirova, I.; Ignatev, D.; Shcheveva, N. Revealing Spatiotemporal Deformation Patterns Through Time-Dependent Clustering of GNSS Data in the Japanese Islands. Algorithms 2026, 19, 13. https://doi.org/10.3390/a19010013, CC BY 4.0. 0:00 Japan Earthquake 1:42 Estimated Damage 2:41 Futagawa-Hinagu Fault Zone 3:20 Geologic Setting 4:00 Aftershocks