Earthquakes near Pátra, 1927–2026

The deadliest was not the strongest: a magnitude 6.8 on August 12, 1953 (15 km ENE of Póros, Greece), for which NOAA records 476 deaths. 22 earthquakes here in these years are on NOAA’s list of significant earthquakes. NOAA records deaths in 11 of the events here, 576 in all. The ten years with the most magnitude 6+ earthquakes were 1947–1956, with 5 of the 15. The latest on NOAA’s list is a magnitude 5.3 on August 7, 2013 (Central: Phthiotis, Reggini). NOAA lists 9 tsunamis that began within 100 km of Pátra, and one from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 6 m, on February 7, 1963. The deadliest, on February 7, 1963, killed 2 people here by NOAA’s runup records.

• August 7, 2013Earthquake · M 5.3Central: Phthiotis, RegginiNOAA NCEI
• January 17, 1983Earthquake · M 7.026 km SW of Lixoúri, GreeceUSGS · NOAA NCEI
• February 7, 1963Tsunami · 6 m hereCorinth Gulf · 2 deaths here (NOAA)NOAA NCEI
• August 12, 1953Earthquake · M 6.815 km ENE of Póros, Greece · 476 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
• October 6, 1947Earthquake · M 7.34 km WNW of Koróni, Greece · 3 deaths (NOAA)USGS · NOAA NCEI

• An event counts for Pátra when it began within 100 km of its centre, or 200 km for an earthquake of magnitude 7 or more. Damage can reach further.
• USGS counts here start at magnitude 6: the catalogue’s smaller quakes thin out going back, where few instruments listened.
• NOAA lists significant events only: earthquakes that killed, did about $1 million of damage, reached magnitude 7.5 or intensity X, or raised a tsunami, and eruptions and tsunamis by like measures. Magnitudes before 1900 are its estimates from written accounts.
• Deaths are NOAA’s total for each event, wherever people died, its tsunami and fires included. A tsunami counts the dead its runup records give for this place: NOAA’s total for a tsunami includes its source quake’s.
• A tsunami from elsewhere counts where one of its runups killed or rose a metre or more.
• Counted to October 19, 2026, as is the map. The last 30 days ask USGS again.

How the layers work, where their data comes from and what they can’t tell you: Earthquakes, live, The world through history