Significant earthquakes of 1804

June 8, 1804 Earthquake: Patrai, Greece

June 8, 1804 · Deaths: some

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
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.

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.