Feb. 6's back-to-back earthquakes of 7.7 and 7.6 magnitude in Türkiye and Syria were the fifth-deadliest. They were the biggest quakes in Türkiye since 1939, when a 7.9 magnitude hit the country's eastern province of Erzincan and killed 33,000. The recent earthquake is unprecedented because of its geographical size and area which is large, as compared to previous earthquakes.