Moderate magnitude 4.4 earthquake at 20 km depth25 Apr 04:30 UTC: First to report: EMSC after 14 minutes.25 Apr 04:30: Now using data updates from USGSI didn't feel itI felt this quakeEarthquake detailsDate & timeApr 25, 2026 04:16:06 UTC - Local time at epicenterSaturday, Apr 25, 2026, at 04:16 am (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.40Depth20.1 kmEpicenter latitude / longitude51.787°N / 176.186°EAlaska, United StatesSeismic antipode51.787°S / 3.814°WQuality28 seismic stationsShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoBuldir (65 km / 40 mi)Estimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | equivalent to ONE quake of magnitude 4.4 | about seismic energy15 minutes agoApr 25, 2026 04:16 GMT / Apr 25, 2026 04:16 am (Universal Time)Lat / Lng: 51.787 / 176.186: 236 km ESE of Attu Station, AlaskaSource: USGSOther sources: EMSC: 4.4 / 20 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22943108',51.78700,176.18600,'15 minutes ago: Mag. 4.4, 236 km ESE of Attu Station, Alaska',html,'quakes-6-24.png',25,25,12,12,125]); 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 236 km (146 mi) distance northwest of the epicenter. People likely experienced very weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry236 km (146 mi)NW of epicenterAttu Station(pop: 21)II: Very 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 GMT2026-04-25EpicenterAgency4.420 km12 mi04:16:06.151236 km ESE of Attu Station, AlaskaUSGS (United States Geological Survey)4.420 km12 mi04:16:06.151RAT ISLANDS, ALEUTIAN ISLANDS0 km (0 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)Aftershocks for this quakeNo aftershocks have been recorded so far. When aftershocks are detected, we will update this section.What are aftershocks?Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.[More info]What about this quake?Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface area of approximately 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Apr 25, 2026 04:16 am (Universal Time)15 minutes ago4.420 km0 km - This quake236 km ESE of Attu Station, AlaskaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 72 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.02 quakes per year (or 1 quake every 62.5 years)Mag. 6 or higher: 0.23 quakes per year (or 1 quake every 4.4 years)Mag. 5 or higher: 1.87 quakes per yearMag. 4 or higher: 18.1 quakes per yearMag. 3 or higher: 51 quakes per year (or 4.3 quakes per month)Mag. 2 or higher: 69 quakes per year (or 5.7 quakes per month)Mag. 1 or higher: 73 quakes per year (or 6.1 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 2 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 60 to 65 years.Number of quakes per yearPrevious quakes in the same area of this earthquake