Historedia
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1828 Sanjō earthquake strikes Echigo

When
1828
Where
Sanjō, Echigo Province
Episodes
1

The 1828 Sanjō earthquake occurred on December 18, 1828, in Sanjō, located in what was then Echigo Province, Japan. The event is recorded as a significant seismic occurrence in the region that later became Niigata Prefecture.

Episodes

  1. 1828-12-18 · Sanjō, Echigo Province1828 Sanjō Earthquake

    An earthquake struck Sanjō in Echigo Province, Japan, on December 18, 1828, in an area now within Niigata Prefecture.

Background and detail

Historical Context. The earthquake took place in Sanjō, an area situated in Echigo Province during the Edo period. This province was part of the mainland area that would eventually be organized into Niigata Prefecture following the Meiji Restoration. The location is historically significant as it represents the pre-modern administrative division of the region.

Geographical Setting. Sanjō is located in the area that constitutes modern-day Niigata Prefecture, which is part of the Chūbu region on Honshu. The prefecture stretches along the Sea of Japan coast, featuring a coastal plain between mountains and the sea, and includes the mouth of the Shinano River.

Sources

  1. 1828 Sanjō earthquake Wikipedia, revision of 2026-06-20
  2. Niigata Prefecture Wikipedia, revision of 2026-09-27

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.