An earthquake with a magnitude of 4.0 struck off the coast of Silivri in the Marmara Sea on Monday, according to Kandilli Observatory. The tremor occurred at 12:13 p.m. local time at a depth of 6.99 kilometers.
The Türkiye’s Disaster and Emergency Management Authority (AFAD), which also monitors seismic activity in the region, reported the magnitude as 3.9.
The tremor was felt across much of Istanbul, causing brief concern among residents. There have been no immediate reports of damage or injuries. Authorities continue to monitor the situation.
A CNN Turk reporter shared real-time updates on the earthquake, stating:
“There are reports from people who felt the tremor, particularly in the Silivri and Buyukcekmece areas. While we are currently in Caglayan and did not feel it here, it’s reported that the earthquake was felt in districts closer to Silivri, especially in Catalca. Coastal areas seem to have experienced the tremor as well.”