May 13, 1088 Tsunami: Miyako, Iwate Prefecture, Japan
A tsunami caused by an earthquake began at Miyako, Iwate Prefecture, Japan on May 13, 1088.
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
- May 13, 1088
- Source
- Miyako, Iwate Prefecture, Japan
- Cause
- Earthquake
- Runups recorded
- 0
- Tsunami intensity (Soloviev-Imamura)
- 1.5
- Waters
- Ocean
- How certain
- Probable tsunami
- Source location
- 39.640° N, 141.960° 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.
1088, May 13. There were nine shocks in the vicinity of Miyako (Iwate Prefecture) from 20:00 until the following morning. Large waves ran up the coast three times before 1:00. The wave periods were greater than 1 hour (Reference #414).
More
Every tsunami in 1088The 1000sTsunamis 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 5500.