Debates and Theories Surrounding the Anticipated Istanbul Earthquake The recent 6.2 magnitude earthquake that struck off the coast of Silivri, Istanbul on April 23, 2025, has reignited intense debate about the likelihood, timing, and potential impact of a major earthquake that seismologists have long predicted for Turkey's largest city. This earthquake, which injured over 150 people primarily due to panic-induced falls and evacuations, serves as a stark reminder of Istanbul's precarious position along one of the world's most active fault lines.