Earthquakes near Çorlu through history
From 1900 to October 19, 2026, USGS recorded 8 earthquakes of magnitude 6 or more within 100 km of Çorlu, or 200 km for magnitude 7 and above. 3 of them reached magnitude 7 or more; the strongest on either list was an estimated magnitude 7.7 on September 10, 1509 (Istanbul).
The last 30 days · as of
USGS recorded no earthquake of magnitude 4.5 or more within 100 km of Çorlu in the last 30 days.
What the record holds
The deadliest was not the strongest: a magnitude 7.6 on August 17, 1999 (4 km ESE of Derince, Turkey), for which NOAA records 17,118 deaths. NOAA’s list of significant earthquakes has 32 here, back to 283 BCE. NOAA records deaths in 8 of the events here, 27,363 in all. The latest on NOAA’s list is a magnitude 6.2 on April 23, 2025 (24 km SE of Marmara Ereğlisi, Turkey). NOAA’s record here begins in 283 BCE with an earthquake (Lysimachia). It grows thinner going back: 6 of the 32 significant earthquakes NOAA lists here are from 1927 on. NOAA lists 16 tsunamis that began within 100 km of Çorlu, and one from elsewhere that reached it with deaths or a metre of water or more. The highest water NOAA records here was 4.5 m, on July 10, 1894.
The events
- April 23, 2025Earthquake · M 6.224 km SE of Marmara Ereğlisi, TurkeyUSGS · NOAA NCEI · Wikipedia
- August 17, 1999Earthquake · M 7.64 km ESE of Derince, Turkey · 17,118 deaths (NOAA)USGS · NOAA NCEI · Wikipedia
- July 10, 1894Tsunami · 4.5 m hereMarmara SeaNOAA NCEI · Wikipedia
- September 10, 1509Earthquake · M 7.7 (est.)Istanbul · 5,000 deaths (NOAA)NOAA NCEI · Wikipedia
- 283 BCEEarthquakeLysimachiaNOAA NCEI
Good to know
- An event counts for Çorlu 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
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