A very shallow magnitude 3.1 earthquake was reported early in the morning near Chambery, Savoy, Auvergne-Rhone-Alpes, France.According to France's Réseau National de Surveillance Sismique (RéNaSS), the quake struck on Thursday, October 22nd, 2026, at 4:03 am local time, at a very shallow depth of 0. km. Shallow earthquakes are felt more strongly than deeper ones because they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review the data and refine their calculations, or as other agencies issue their reports.A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.6 earthquake.Based on the preliminary seismic data, the quake should not have caused any significant damage but was probably felt by many people as a light vibration in the area of the epicenter. Weak shaking might have been felt in Les Avenieres (pop. 4,700), located 5 km from the epicenter.Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Aix-les-Bains (pop. 27,700), located 22 km from the epicenter; Chambery (pop. 61,600), 25 km away; Bourgoin-Jallieu (pop. 23,500), 28 km away; and Voiron (pop. 22,100), 32 km away. In Villefontaine (pop. 19,700, 37 km away), Annecy (pop. 49,200, 48 km away), Grenoble (pop. 158,600, 53 km away), and Lyon (pop. 520,800, 62 km away), the quake was probably not felt.Earthquake data: Date & time: Oct 22, 2026 04:03 am (GMT +2) local time (22 Oct 2026 02:03 GMT)Magnitude: 3.1Hypocenter depth: 0.00 kmEpicenter coordinates: 45.65°N / 5.63°E (Ain, Auvergne-Rhone-Alpes, France)Primary data source: RENASS