July 12, 1835 Tsunami: Ionian Islands, Greece
A tsunami of unknown cause began at Ionian Islands, Greece on July 12, 1835. 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
- July 12, 1835
- Source
- Ionian Islands, Greece
- Cause
- Unknown
- Runups recorded
- 1
- Tsunami intensity (Soloviev-Imamura)
- 2
- Waters
- Ocean
- How certain
- Questionable tsunami
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.
Reference #9116 lists an earthquake at 10h 55m in Zante but no mention of a tsunami.
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 |
|---|---|---|---|---|---|---|---|
| Island of Zakynthos (Zakinthos) | Greece | Eyewitness observation of water height |
More
Every tsunami in 1835The 1800sTsunamis of GreeceThis 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 690.