2025 Aomori earthquake
USGS ShakeMap | |
| UTC time | 2025-12-08 14:15:10 |
|---|---|
| ISC event | 644817229 |
| USGS-ANSS | ComCat |
| Local date | 8 December 2025 |
| Local time | 23:15:10 JST (UTC+9) |
| Duration | 30 seconds |
| Magnitude | MJMA 7.5 Mw 7.6 |
| Depth | 45.0 km (28 mi) |
| Epicenter | 40°57′36″N 142°11′06″E / 40.960°N 142.185°E |
| Type | Thrust |
| Areas affected | Sanriku and Hokkaido, Japan |
| Max. intensity | JMA 6+ (MMI VIII) |
| Peak acceleration | 0.472 g |
| Peak velocity | 44.82 cm (17.65 in)/s |
| Tsunami | 70 cm (28 in) |
| Aftershocks | 85+ ≥Mw 4.0 Mww 6.7 on 12 December 2025 (strongest) |
| Casualties | 47 injuries |
On 8 December 2025, at 23:15:10 JST (14:15:10 UTC), a Mw 7.6 earthquake struck in the Pacific Ocean off the coast of Aomori Prefecture, Sanriku, Japan. The earthquake generated tsunamis that reached heights of up to 70 cm (28 in) along the coast of northern Japan. The earthquake resulted in injuries to 47 people, damaged nearly 4,000 buildings in Aomori and Hokkaido, and triggered the Off the Coast of Hokkaido and Sanriku Subsequent Earthquake Advisory due to fears of a more powerful earthquake along the Sanriku and Hokkaido coasts.