Episode 1 of 4

Main Shock

When
28 October 1707
Where
South-central Japan
Part of
Hōei Earthquake

The primary earthquake struck south-central Japan on 28 October 1707 at approximately 13:45 local time.

The Hōei earthquake occurred at approximately 13:45 local time on 28 October 1707. It was the largest in Japanese history until 2011. Historical sources did not distinguish between simultaneous or closely timed seismic events during this occurrence.

Sources

  1. 1707 Hōei earthquake Wikipedia, revision of 2026-07-26

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.