Overview: This building is regarded as the first case in Japan of a reinforced-concrete building toppled by a tsunami. The town decided to preserve it as an earthquake ruin.
Visitor Information
| Address | 1 Kaigan-dori, Onagawa-cho, Oshika-gun, Miyagi Prefecture (inside Kaigan Hiroba; according to a search result summary) |
|---|---|
| Opened | The date it opened to the public is unconfirmed |
| Operator | Onagawa Town (inquiries: Industry Promotion Division) |
| Opening hours | Unconfirmed |
| Closed | Unconfirmed |
| Admission | Unconfirmed |
| Access | About 3 minutes on foot from Onagawa Station (third-party tourism information) |
| Phone | 0225-54-3131 (Industry Promotion Division) |
Opening hours, closing days and admission may change. Please be sure to check the official website before you visit.
Map
Map: © OpenStreetMap contributors. Positions are estimates from addresses. Please check the official information of each facility before you visit. (OpenStreetMap)
Official website: https://www.town.onagawa.miyagi.jp/archive/town/shinsaiikou.html
Photo: Yasu (talk) (CC BY-SA 3.0) / Wikimedia Commons
This article summarizes key points from the official page above and other sources, compiled by the Tohokuru editorial team (checked: October 13, 2026 / source: official (details unconfirmed)). “Unconfirmed” and “not stated” mean the information was not found in the sources we checked.

