June 8, 1804 Earthquake: Patrai, Greece
An earthquake struck Patrai, Greece on June 8, 1804 at 01:00 UTC. It caused a tsunami.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- June 8, 1804
- Time
- 01:00 UTC
- Place
- Patrai, Greece
- Intensity
- 10 on the Modified Mercalli scale
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 38.200° N, 21.800° E
- Country
- Greece
The toll
- Deaths
- Some (about 51 to 100)
- Damage
- Severe (about $5 to $25 million)
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.
A series of damaging earthquakes in the Gulf of Patras […] in Patras, where a number of people were killed. (reference #9116)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- December 856, Korinthos,patrai (Patras), Greece
- July 7, 551, Schisma, Boetia, Greece
- June 426 BC, Euboea, Greece
- September 30, 1636, Cephalonia, Greece
- August 12, 1953, Lixouri-Argostoli (Kephallenia), Greece
- December 29, 1820, Zakinthos (Zante), Greece
- August 27, 1886, Triphylie (Peleponese), Philiatra, Greece
- July 11, 1767, Kefalonia, Greece
- April 20, 1894, Locride, Malesina-Martinon (Lokris), Greece
- February 4, 1867, Cephalonia, Greece
- September 7, 1999, Athens, Greece
- August 23, 1817, Aeghion, Achaia, Greece
- February 25, 1742, Zakynthos, Greece
- August 1, 1870, Itea Delphi (Phokis), Greece
- September 30, 1870, Greece
More
Significant earthquakes of 1804The 1800sRecent earthquakes near hereThis day in weather history
Sources
Significant earthquakes 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 earthquake 1565.