August 15, 1331 Tsunami: Off Tanabe, Wakayama Prefecture, Japan
A tsunami caused by a magnitude 7 earthquake began at Off Tanabe, Wakayama Prefecture, Japan on August 15, 1331.
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
- August 15, 1331
- Source
- Off Tanabe, Wakayama Prefecture, Japan
- Cause
- Earthquake
- Earthquake
- Magnitude 7
- Runups recorded
- 0
- Tsunami magnitude (Iida)
- 0
- Waters
- Ocean
- How certain
- Definite tsunami
- Source location
- 33.700° N, 135.200° 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.
About 20 ha at Senrigahama (Minabe-machi) upheaved. Sea water receded and agitated. (reference #150)
More
Every tsunami in 1331The 1300sTsunamis of JapanThe earthquakeThis 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 114.