October 20, 1662 Tsunami: Sanriku, Japan
A tsunami caused by an earthquake began at Sanriku, Japan on October 20, 1662.
Where the waves reached
The source of the tsunami. No runup with a place is recorded for it.
- 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 20, 1662
- Source
- Sanriku, Japan
- Cause
- Earthquake
- Runups recorded
- 0
- Tsunami intensity (Soloviev-Imamura)
- 2
- Tsunami magnitude (Iida)
- 2
- 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.
1662, October 20. Earthquake and tsunami erroneous date. This event was probably 10 days later [Oct 31, 1662]. (reference #150)
1662, October 20. A tsunami was observed on the coast of Iwate Prefecture. Only one report mentions a shock and a tsunami. Possibly, the tsunami had a very local nature, although Musya and Imamura do not share this point of view. (reference #414)
More
Every tsunami in 1662The 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 289.