January 1, 1862 Tsunami: Ionian Sea, Greece
A tsunami caused by an earthquake began at Ionian Sea, Greece on January 1, 1862 at 08:45 UTC.
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
Travel times
How long the first wave took to reach each part of the ocean, one line for each hour up to 24, estimated from the source and the depth of the sea.
The travel times are computed in your browser, which needs JavaScript.
- 1 to 4 hours
- 5 to 6 hours
- 7 to 14 hours
- 15 hours and more
Computed in your browser the way NOAA’s own travel time maps are: the wave travels at the square root of gravity times the depth, over NOAA’s ETOPO1 depths averaged to a 10 arc-minute grid. Checked against NOAA NCEI’s maps for 21 tsunamis over the first 24 hours, these lines fall within 10 minutes of NCEI’s at half the points compared and within 52 minutes at 9 in 10. They give when the first wave could arrive, not how high it is; bays, harbors and island chains finer than the grid can see it later. Not for use in a warning: see tsunami.gov.
The tsunami
- Date
- January 1, 1862, 08:45 UTC
- Source
- Ionian Sea, Greece
- Cause
- Earthquake
- Runups recorded
- 0
- Tsunami intensity (Soloviev-Imamura)
- 2
- Waters
- Ocean
- How certain
- Probable tsunami
- Source location
- 38.250° N, 22.250° E
The toll
- Damage
- Limited (under about $1 million)
- Houses destroyed
- Few (about 1 to 50) with the earthquake or eruption that caused it
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
1862, January 1, 08h45m. Ionian Sea, Gulf of Corinth. A quite strong earthquake 2 s long took place. It was considerably stronger in Patras (houses were damaged) and in Aiyion where a dozen of houses tumbled down and the sea level rose higher than its usual level for 2m, which was dangerous for the town because of its low disposition.
Some ancient houses in Corinth left by the inhabitants after the earthquake of 1852 ceased to exist. The walls of many constructions in Corinth cracked; Kalamaki was not spared similar ordeals. The sea intruded onto the coast in Galmidi and in Itea on the northern shore of the Gulf of Lepanto (Gulf of Corinth) and caused damage. (reference #2130)
More
Every tsunami in 1862The 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 3442.