A moderately shallow magnitude 4.5 earthquake was reported early in the morning near Atka, Aleutians West, Alaska, USA.According to the United States Geological Survey, the quake struck on Saturday, October 31st, 2026, at 6:51 am local time, at a moderately shallow depth of 28 miles. The exact magnitude, epicenter, and depth of the quake may 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 also listed it as a magnitude 4.5 earthquake.Towns or cities near the epicenter where the quake may have been felt as very weak shaking include Atka (pop. 64), located 69 miles from the epicenter.VolcanoDiscovery will automatically update the magnitude and depth if these 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 31, 2026 08:51 am (GMT -10) local time (31 Oct 2026 18:51 GMT)Magnitude: 4.5Hypocenter depth: 44.87 kmEpicenter coordinates: 51.7°N / 172.79°W (Alaska, United States)Primary data source: USGS