Light magnitude 3.9 earthquake at unknown depth13 Oct 04:28 UTC: First to report: EMSC after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 13, 2025 04:23:37 UTC - Local time at epicenterMonday, Oct 13, 2025, at 04:23 am (Universal Time GMT +0)Statuspreliminary (automatic detection)Magnitude3.9Depth10 kmEpicenter latitude / longitude5.16°N / 94.22°EIndonesiaSeismic antipode5.16°S / 85.78°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoPulau Weh (138 km / 86 mi)Estimated seismic energy released4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) | equivalent to ONE quake of magnitude 3.9 | about seismic energy5 minutes agoOct 13, 2025 04:23 GMT / Oct 13, 2025 04:23 am (Universal Time)Lat / Lng: 5.16 / 94.22: Northern Sumatra, IndonesiaSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22270275',5.16000,94.22000,'5 minutes ago: Mag. 3.9, Northern Sumatra, Indonesia',html,'quakes-5-24.png',18,18,9,9,124]); 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 BaliNearby placesThe closest larger town where the quake might have been felt is Banda Aceh, a city with more than 260,000 inhabitants in Indonesia, in 130 km (81 mi) distance east 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(*)RegionCountry130 km (81 mi)E of epicenterBanda Aceh(pop: 255,000)II: Very weakNanggroe Aceh Darussalam ProvinceIndonesia146 km (91 mi)NE of epicenterSabang(pop: 42,100)II: Very weakNanggroe Aceh Darussalam ProvinceIndonesia194 km (121 mi)E of epicenterSigli(pop: 17,500)I: Not feltKabupaten Pidie, Nanggroe Aceh Darussalam ProvinceIndonesia229 km (142 mi)E of epicenterReuleuet(pop: 40,400)I: Not feltKabupaten Pidie Jaya, Nanggroe Aceh Darussalam ProvinceIndonesia240 km (149 mi)SE of epicenterMeulaboh(pop: 64,600)I: Not feltKabupaten Aceh Barat, Nanggroe Aceh Darussalam ProvinceIndonesia275 km (171 mi)E of epicenterBireun(pop: 47,700)I: Not feltKabupaten Bireuen, Nanggroe Aceh Darussalam ProvinceIndonesiaNotes:(*) 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!Compare 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 GMT2025-10-13EpicenterAgency3.910 km6.2 mi(*)04:23:37NORTHERN SUMATRA, INDONESIAEMSC (European-Mediterranean Seismological Centre)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 25 years and our earthquake archive back to 1900, there are about 22.7 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.05 quakes per year (or 1 quake every 20.8 years)Mag. 5 or higher: 5.2 quakes per yearMag. 4 or higher: 13.7 quakes per yearMag. 3 or higher: 24.2 quakes per yearMag. 2 or higher: 26.9 quakes per yearThe area where this quake occurred has a high level of seismic activity. It has had at least 6 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 20 to 25 years.Number of quakes per yearPrevious quakes in the same area of this earthquake