1509 Constantinople Earthquake

Date: September 10, 1509 • Location: Çınarcık, Turkey

The "Minor Judgement Day" earthquake struck in the Sea of Marmara, devastating much of Constantinople and killing more than 1,000 people.

The 1509 Constantinople earthquake, or historically Kıyamet-i Suğra, occurred in the Sea of Marmara on 10 September 1509 at about 22:00. The earthquake had an estimated magnitude of 7.2 ± 0.3 on the surface-wave magnitude scale. A tsunami and 45 days of aftershocks followed the earthquake. The exact death toll of this earthquake is unknown; estimates range between 1,000 and 13,000.