Just 10 minutes ago, a 3.7-magnitude earthquake struck near Argostoli, Kefallonia, Ionian Islands, Greece. The tremor was recorded early afternoon on Friday, July 11th, 2025, at 3:23 pm local time, at a very shallow depth of 5. km below the surface.The event was filed by the National Observatory of Athens (NOA), the first seismological agency to report it.Our monitoring service identified a second report from The Seismological Survey of Serbia (SSS) which listed the quake at magnitude 4.0. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.2, The Seismological Laboratory of the University of Athens (UOA) at magnitude 3.6, and the citizen-seismograph network of RaspberryShake at magnitude 3.8.Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc. In Davgata (pop. 62) located 2 km from the epicenter, Argostoli (pop. 9,800) 3 km away, Lixouri (pop. 3,800) 3 km away, and Faraklata (pop. 1,100) 4 km away, the quake should have been felt as light shaking.Weak shaking might have been felt in Valsamata (pop. 1000) located 10 km from the epicenter, and Sami (pop. 1,300) 16 km away.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Poros (pop. 1,100) located 27 km from the epicenter, Ithaki (pop. 1,800) 28 km away, and Zakynthos (pop. 11,500) 60 km away.Earthquake data: Date & time: Jul 11, 2025 03:23 pm (GMT +3) local time (11 Jul 2025 12:23 GMT)Magnitude: 3.7Depth: 5.00 kmEpicenter latitude / longitude: 38.21°N / 20.47°E (Kefallonia Regional Unit, Ionian Islands, Greece)Primary data source: NOA