Strong magnitude 5.2 earthquake at 31 km depth17 Mar 16:31 UTC: First to report: GFZ after 10 minutes.17 Mar 16:31: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeMar 17, 2026 16:21:44 UTC - Local time at epicenterTuesday, Mar 17, 2026, at 04:21 pm (Universal Time GMT +0)StatusconfirmedMagnitude5.2Depth31 kmEpicenter latitude / longitude52.173°N / 176.5702°EAlaska, United StatesSeismic antipode52.173°S / 3.43°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoBuldir (49 km / 30 mi)Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | equivalent to ONE quake of magnitude 5.2 | about seismic energy10 minutes agoMar 17, 2026 16:21 GMT / Mar 17, 2026 04:21 pm (Universal Time)Lat / Lng: 52.173 / 176.5702: Rat Islands, Aleutian IslandsSource: EMSCOther sources: GFZ: 5.2 / 10 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22817619',52.17300,176.57020,'10 minutes ago: Mag. 5.2, Rat Islands, Aleutian Islands',html,'quakes-7-24.png',30,30,15,15,126]); function mkRep(id,notFelt){var nFelt=notFelt||false;var src="https://www.volcanoesandearthquakes.com/app/earthquake-report.php?quakeId="+id;if(nFelt==true){src+="¬Felt=true";}window.open(src,"","status=0,toolbar=0,location=0,directories=0,menubar=0,resizable=1,scrollbars=1,height=400,width=350");} function locationHashChanged(e){-1!=e.oldURL.indexOf("#popupMap")&&closePopup()} window.onhashchange = locationHashChanged; function comment(e){var t=e.parentNode,a=(t.dataset.id,document.getElementById("commentForm"));"none"==a.style.display?(t.appendChild(a),a.style.display="block"):a.style.display="none"}function sendComment(e){var t=e.parentNode,a=t.parentNode.dataset.id,n=document.getElementById("commentContent"),p=n.value.trim();if(p){var o="id="+a+"&quakeId="+thisQuakeId;o+="&comment="+decodeURIComponent(p),mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",o,function(e){e.responseText;alert("Thank you for submitting your comment!"),t.style.display="none",n.value=""})}}function flagReport(e){var t=e.parentNode.dataset.id;if(confirm("Report this as inappropriate?")){var a="id="+t+"&quakeId="+thisQuakeId+"&flagAsInappropriate=1";mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",a,function(t){var a=t.responseText;alert(a),e.style.display="none"})}}function likeReport(e){var t="id="+e.parentNode.dataset.id+"&quakeId="+thisQuakeId+"&like=1";mkRequest("//reports.volcanodiscovery.com/app/eqReportComment.php","post",t,function(t){t.responseText;e.style.opacity=.5})}]]>[smaller] [bigger]Most recent quakes Top 20 past 24 hrs Quakes in the US AlaskaNearby placesThe closest larger town where the quake might have been felt is Attu Station, a town with 21 inhabitants in the United States, in 241 km (150 mi) distance west of the epicenter. People likely experienced weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry241 km (150 mi)W of epicenterAttu Station(pop: 21)III: WeakAleutians West Census Area, AlaskaUnited StatesNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quakeThere are no user reports for this quake yet.If you felt it, be the first to report it!Get the Android appCompare Quake DataData for the same earthquake as reported by different agenciesThe more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.MagDepthTime GMT2026-03-17EpicenterAgency5.231 km19 mi16:21:44.41RAT ISLANDS, ALEUTIAN ISLANDSEMSC (European-Mediterranean Seismological Centre)5.2110 km6.2 mi(*)16:21:40.86Rat Islands, Aleutian Islands20 km (13 mi) epicenter difference with EMSCGFZ (German Research Centre for Geosciences)Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy.Earthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 62 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.2 quakes per year (or 1 quake every 5.1 years)Mag. 5 or higher: 1.69 quakes per yearMag. 4 or higher: 12.8 quakes per yearMag. 3 or higher: 36.2 quakes per year (or 3 quakes per month)Mag. 2 or higher: 56 quakes per year (or 4.7 quakes per month)Mag. 1 or higher: 61 quakes per year (or 5.1 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 25 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.Number of quakes per yearPrevious quakes in the same area of this earthquake