August 26, 1846 Tsunami: Tuscany, Italy
A tsunami caused by an earthquake began at Tuscany, Italy on August 26, 1846 at 17:23 UTC. Its effects were recorded at 2 places.
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
- August 26, 1846, 17:23 UTC
- Source
- Tuscany, Italy
- Cause
- Earthquake
- Runups recorded
- 2
- Tsunami intensity (Soloviev-Imamura)
- 4
- Waters
- Ocean
- How certain
- Probable tsunami
- Source location
- 43.500° N, 10.500° 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.
1846, August 26 and 27. "The aftershocks of the August 14 earthquake lasted right up to August 30 and were accompanied by a more or less sharp underground rumble. A slight shock in Orciano occurred on the night of August 26. A rumble was heard in Livorno..." (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 |
|---|---|---|---|---|---|---|---|
| Livorno | Italy | 16 | Eyewitness observation of water height | ||||
| Island of Gorgona | Italy | Eyewitness observation of water height |
More
Every tsunami in 1846The 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 3314.