Magnitude 4.2 Earthquake Strikes Near Gemlik, Turkey
July 1, 2025 – Bursa Province, Turkey
A magnitude 4.2 earthquake struck northeast of Gemlik, in Turkey’s Bursa Province, on Tuesday, July 1st, at 12:57 PM local time, according to the Disaster and Emergency Management Authority (AFAD). The quake occurred at a shallow depth of 10.1 kilometers, increasing the likelihood of it being felt by residents in the surrounding areas.
The epicenter was located approximately 8 kilometers from Gemlik, affecting nearby towns such as Orhangazi and Haydariye, which are also within an 8 km radius. While no reports of injuries or structural damage have been confirmed, residents likely experienced light shaking, which may have caused minor disturbances such as items falling from shelves or slight damage to windows.
The European-Mediterranean Seismological Centre (EMSC) also reported the quake at magnitude 4.2, while other monitoring organizations offered slightly different readings:
- National Observatory of Athens (NOA): 3.5 magnitude
- Aristotle University of Thessaloniki Geophysical Lab (AUTH): 3.9 magnitude
- RaspberryShake Citizen Seismograph Network: 3.5 magnitude
Reports indicate that weak to very weak shaking may have been felt in cities up to 60 km away, including:
- Yalova (19 km)
- Kestel (33 km)
- Gebze (39 km)
- Maltepe (50 km)
- Istanbul (62 km)
AFAD and regional authorities are continuing to monitor the situation. Seismologists caution that the exact magnitude and depth may be adjusted as further data is analyzed.
While the quake did not result in any serious consequences, it serves as a reminder of the region’s vulnerability to seismic activity. Residents are encouraged to remain aware of emergency procedures and ensure their households are prepared.
