July 2, 1831 Tsunami: Sciacca, Italy
A tsunami caused by an earthquake began at Sciacca, Italy on July 2, 1831. 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 2, 1831
- Source
- Sciacca, Italy
- Cause
- Earthquake
- Runups recorded
- 1
- Tsunami intensity (Soloviev-Imamura)
- 1
- Waters
- Ocean
- How certain
- Questionable tsunami
- Source location
- 37.050° N, 12.300° 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.
"The formation of a new island took place near the southern shore. On July 2, the sea started to boil up unusually between Sicily and Africa 50km to the south-west of Sciacca. An eruption resulted in formation of the Island of Julia or Ferdinandea" (reference #2130).
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 |
|---|---|---|---|---|---|---|---|
| Sciacca | Italy | Eyewitness observation of water height |
More
Every tsunami in 1831The 1800sTsunamis of ItalyThis 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 3292.