October 5, 1718 Tsunami: Tokaido, Japan
A tsunami of unknown cause began at Tokaido, Japan on October 5, 1718. Its effects were recorded at 1 place.
Where the waves reached
The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
The tsunami
- Date
- October 5, 1718
- Source
- Tokaido, Japan
- Cause
- Unknown
- Runups recorded
- 1
- Waters
- Ocean
- How certain
- Erroneous entry
The toll
The record gives no deaths, injuries or damage for this tsunami.
What the record says
NCEI’s account, from the sources it cites.
October 5, 1718. A tidal wave was observed on the coast of Mie
Preffecture. Musya and Omori, consider it to have been a tsunami. Omori states that there is a link between the tidal wave and the shock felt on land in the Shinano valley. However, it is clear from Musya's description that this was a wave of storm origin. (reference #414)
Oct 5, 1718. Source: Ise; Observation: Japan - Kinki, Ise and Shima. Musya in his summary table (1951) and Omori reported as a tsunami, and Omori postulated a connection between this tidal wave and a quake inland at Shinano Valley. However, according to Musya's text (1943) this was clearly a storm surge. (reference #79)
Every runup
Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.
| Where | Country | Km from source | Water height, m | Inland, m | Measured by | First wave, UTC | Deaths |
|---|---|---|---|---|---|---|---|
| Mie Coast | Japan | Eyewitness observation of water height |
More
Every tsunami in 1718The 1700sTsunamis of JapanThis day in weather historyAlerts in force
Sources
Tsunami events and runups from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI tsunami event 388.