A shallow magnitude 5.1 earthquake was reported early in the morning near Encounter Bay, Victor Harbor, South Australia, Australia.According to the German Research Centre for Geosciences (GFZ), the quake struck on Tuesday, October 27th, 2026, at 6:18 am local time, at a shallow depth of 6.2 miles. 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.Our monitoring service identified a second report from the RaspberryShake citizen-seismograph network, which also listed the quake at magnitude 5.1.Based on the preliminary seismic data, the quake should not have caused any significant damage but was probably felt by many people as light vibration in the area of the epicenter. Weak shaking might have been felt in Dudley West (pop. 19), located 60 miles from the epicenter; Encounter Bay (pop. 4,700), 63 miles away; Victor Harbor (pop. 4,500), 64 miles away; Port Elliot (pop. 2,100), 66 miles away; Goolwa Beach (pop. 2,000), 69 miles away; Goolwa (pop. 2,200), 69 miles away; and Kingscote (pop. 1,900), 76 miles away.VolcanoDiscovery will automatically update the magnitude and depth if they change and follow up if other significant news about the quake becomes available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.Earthquake data: Date & time: Oct 27, 2026 06:18 am (GMT +9) local time (26 Oct 2026 21:18 GMT)Magnitude: 5.1Hypocenter depth: 10.00 kmEpicenter coordinates: 36.48°S / 138.53°E (South Australia, Australia)Primary data source: GFZ