On November 1st 2026, a magnitude 6.1 earthquake struck Japan, causing no damage. Yet, strangely, the strongest ground motion a particular spot felt was more than 300 miles away from the earthquake epicenter. Today's video discusses why this is the case, and has to do with the great depth the specified earthquake originated at. Thumbnail Photo Credit: Google Earth, Image Landsat / Copernicus, Data LDEO-Columbia, NSF, NOAA, Data SIO, NOAA, U.S. Navy, NGA, GEBCO. This image was overlaid with text, and then overlaid with GeologyHub made graphics (The image border & the GeologyHub logo). The spot shown with the strongest shaking from the November 1st 2026 earthquake was based on data from the Japanese Meteorological Agency at https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20261101072222&lang=en. That location data only, and nothing else in this image falls under the CC BY 4.0 license, which is listed as a compatible license on the Japanese Meteorological Agency website. Note: The magnitude of the earthquake specified in today's video, whenever shown is sourced from https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20261101072222&lang=en. That magnitude data specifically falls under the CC BY 4.0 license, which is listed as a compatible license on the Japanese Meteorological Agency website. Every time the JMA seismic intensity scale definitions and the intensities 1-3 are shown, that overlaid data is based on the Japanese Meteorological Agency, data used from https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20261101072222&lang=en & https://www.jma.go.jp/jma/en/Activities/inttable.html, which falls under a license compatible with CC BY 4.0 (and thus I am using that data under a CC BY 4.0 license). 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] Japanese Meteorological Agency, data used from https://www.data.jma.go.jp/multi/quake/quake_detail.html?eventID=20261101072222&lang=en & https://www.jma.go.jp/jma/en/Activities/inttable.html, which falls under a license compatible with CC BY 4.0 (and thus I am using that data under a CC BY 4.0 license). [2] U.S. Geological Survey [3] Ohuchi, T., Higo, Y., Tange, Y. et al. In situ X-ray and acoustic observations of deep seismic faulting upon phase transitions in olivine. Nat Commun 13, 5213 (2022). https://doi.org/10.1038/s41467-022-32923-8. CC BY 4.0. [4] Mao, G.L., Ferrand, T.P., Li, J. et al. Unsupervised machine learning reveals slab hydration variations from deep earthquake distributions beneath the northwest Pacific. Commun Earth Environ 3, 56 (2022). https://doi.org/10.1038/s43247-022-00377-x. CC BY 4.0. 0:00 M6.1 Japan Earthquake 1:04 Brief Overview 1:36 Geologic Setting 2:12 Subducting Slab 2:45 Phase Changes 3:38 2 Possibilities