August 29, 1792 Tsunami: Tokaido, Japan
A tsunami of unknown cause began at Tokaido, Japan on August 29, 1792. 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
- August 29, 1792
- Source
- Tokaido, Japan
- Cause
- Unknown
- Runups recorded
- 1
- Tsunami intensity (Soloviev-Imamura)
- 0
- Tsunami magnitude (Iida)
- 0
- Waters
- Ocean
- How certain
- Erroneous entry
- Source location
- 34.500° N, 136.700° E
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.
1792, August 29. Validity 2. There was an earthquake with source in Ise Bay. A tsunami was observed at Futami (Ise Bay, Mie Prefecture). There were about five waves (Imamura, 1949; Musya, 1951; Iida, 1956; Iida et al., 1967). (reference #414)
1792, August 29. Tsunami validity 0. No earthquake description. Futamigaura high tide. Storm surge at Atumi where vessels washed away and flooded. (reference #150)
1792, August 29. Ise Bay, 34.5 N, 136.7 E. Tsunami observation: Japan, Ise, Futami-ga-Ura. Aout 5 waves. (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 |
|---|---|---|---|---|---|---|---|
| Futami-Suku | Japan | 7 | Eyewitness observation of water height |
More
Every tsunami in 1792The 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 571.