Uploaded on December 9, 2025 (last updated on December 11)

Event Event time: 2025-12-08 23:15 (JST, JMA) Location: 40.97°N, 142.29°E (JMA) Depth: 54 km (JMA) Magnitude: Mj7.5 (JMA)

Information in our site

• Strong Ground Motions - Earthquake in Aomori Pref. on December 8, 2025 (Mw7.4, Mj7.5) [in English](updated on December 9)
• Tsunami Simulation - Aomori Earthquake on Dec. 8, 2025 by Dr. Fujii (uploaded on December 10)
• 強震観測速報（2025年12月8日青森県東方沖の地震）[in Japanese] (updated on December 11)

Direct links

• M 7.6 - 2025 Aomori Prefecture, Japan Earthquake

Related institutions

• United States Geological Survey (USGS), USA

The Generic Mapping Tools (GMT, Wessel and Smith, Eos, 79, 579, 1998) was used to make the figure of the epicenter, which is from JMA (https://www.data.jma.go.jp/eqev/data/daily_map/20251208.html). The land topography and ocean bathymetry are from GEBCO Compilation Group (2020, GEBCO 2020 Grid, doi:10.5285/a29c5465-b138-234d-e053-6c86abc040b9).

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