July 25, 1696 Tsunami: Fukushima, Japan
A tsunami of meteorological origin began at Fukushima, Japan on July 25, 1696. Its effects were recorded at 1 place. It killed 2,450 people.
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
- July 25, 1696
- Source
- Fukushima, Japan
- Cause
- Meteorological
- Runups recorded
- 1
- Tsunami intensity (Soloviev-Imamura)
- 1
- Tsunami magnitude (Iida)
- 2
- Waters
- Ocean
- How certain
- Erroneous entry
The toll
- Deaths
- 2,450
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
July 25, 1696, Off Fukushima. 2,450 deaths. Storm surge at Onahama, Fukushima Prefecture. (reference #150)
Reference #414:
1696, July 25. There was a tsunami on the coast at Onahama
(Iwaki region, Fukushima Prefecture). There were many victims. There was a strong wind. There was no earthquake. Imamura considers it to have been a storm tsunami.
1697, Februrary 26. There was a tsunami on the coast of Iwate Prefecture. The data may be confused and the facts may relate to the tsunami of 25.XI.1696.
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 |
|---|---|---|---|---|---|---|---|
| Onahama, Iwaki Region | Japan | Eyewitness observation of water height |
More
Every tsunami in 1696The 1600sTsunamis 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 351.