People sit in a park in Istanbul amid aftershocks following a 6.2-magnitude earthquake on April 25, 2025.
185 aftershocks hit Istanbul following 6.2-magnitude earthquake
Istanbul experienced a series of aftershocks on Thursday following a powerful 6.2-magnitude earthquake that struck the Marmara Sea the day before.
Turkey’s Disaster and Emergency Management Authority (AFAD) reported that more than 185 aftershocks have occurred since the initial quake, including one measuring 4.1 on the Richter scale.
The main earthquake, which struck off the coast of Istanbul in the Marmara Sea, caused widespread alarm and minor damage. The aftershocks ranged in magnitude from 4.0 to 5.0, further shaking the densely populated city.
Health Minister Koca Memisoglu stated on the platform X that 236 people were injured, including 173 in Istanbul. At least 15 people were hospitalized, while others were hurt while trying to escape buildings in panic.
Seismologists in Turkey have long warned of a major earthquake threat in Istanbul due to its location near the North Anatolian Fault. The city sits about 15 to 20 kilometers north of a highly active fault segment that runs beneath the Marmara Sea.
One branch of the North Anatolian Fault lies just offshore from Istanbul, putting the city at heightened risk of significant seismic events. Experts continue to urge preparation and awareness in light of the ongoing danger.