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Greece earthquake prompts warning over strain along fault reaching Marmara

Seismograph records sudden spikes of seismic waves during an earthquake. (Adobe Stock Photo)
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Seismograph records sudden spikes of seismic waves during an earthquake. (Adobe Stock Photo)
September 18, 2026 04:30 PM GMT+03:00

Turkish geoscientist Professor Naci Gorur said the northern branch of the North Anatolian Fault is under strain both in the Marmara region and Greece after a magnitude 4.4 earthquake struck near Greece’s Evia island on Friday.

The earthquake occurred at 9:42 a.m. Türkiye time at a depth of 5.46 kilometers, according to Türkiye’s Disaster and Emergency Management Authority, known as AFAD. No negative developments were initially reported after the tremor.

Gorur links earthquake to North Anatolian Fault zone

Commenting on the earthquake, Gorur said the tremor occurred within the zone where the northern branch of the North Anatolian Fault, commonly abbreviated as KAF in Turkish, extends.

The fault system also runs through the Marmara region, which includes Istanbul and its surrounding area.

Gorur drew attention to the strain affecting the northern branch of the fault in both regions, saying: “Two or three hours ago, a magnitude 4.4 earthquake occurred in Greece (Evvoia). It is within the zone of the northern branch of the KAF. The northern branch is under strain both in Marmara and Greece. Get well soon.”

No damage or other adverse effects had been reported following the earthquake.

September 18, 2026 04:30 PM GMT+03:00
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