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1792 Unzen Eruption and Tsunami
- When
- 1792-05-21
- Where
- Mount Unzen
Volcanic activity at Mount Unzen caused the Mayuyama dome collapse, triggering a landslide and tsunami that killed approximately 15,000 people.
On May 21, 1792, earthquakes led to the collapse of the Mayuyama lava dome. The landslide swept through Shimabara and into the Ariake Sea, causing a tsunami. Approximately 15,000 people died, making it the largest volcanic disaster in Japanese history.
Sources
- 1792 Unzen landslide and tsunami Wikipedia, revision of 2026-10-02
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.