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The quake had a moderate depth of 111 km (69 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in Indonesia | Quakes in Malaysia | North Sumatra | Nanggroe Aceh Darussalam Province | Provinsi Sumatera BaratHint: Click on the image to see different maps of this quake!Moderate magnitude 4.0 earthquake at 111 km depth26 Aug 07:03 UTC: First to report: BMKG after 4 minutes.26 Aug 07:07: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeAug 26, 2026 06:58:43 UTC - Local time at epicenterWednesday, Aug 26, 2026, at 01:58 pm (Asia/Jakarta GMT +7)StatusconfirmedMagnitude4.00Depth111 kmEpicenter latitude / longitude1.28°N / 99.26°EKota Padangsidimpuan, North Sumatra, IndonesiaSeismic antipode1.28°S / 80.74°WShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoLubukraya (23 km / 14 mi)Weather at epicenter at time of quakeLight Rain 28°C (82 F), humidity: 77%, wind: 2 m/s (3 kts) from WSWEstimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | equivalent to ONE quake of magnitude 4.0 | about seismic energy11 minutes agoAug 26, 2026 06:58 GMT / Aug 26, 2026 01:58 pm (Jakarta time)Lat / Lng: 1.28 / 99.26: Northern Sumatra, IndonesiaSource: EMSCOther sources: RaspberryShake: 4.0 / 111 km, BMKG: 4.0 / 111 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23313364',1.28000,99.26000,'11 minutes ago: Mag. 4.0, Northern Sumatra, Indonesia',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 BaliNearby placesThe closest larger town where the quake might have been felt is Padangsidempuan, a city with more than 240,000 inhabitants in Indonesia, in 11.2 km (7 mi) distance north of the epicenter. People likely experienced very weak shaking there. In the capital of Malaysia, Kuala Lumpur, 340 km (211 mi) away from the epicenter, the earthquake could not be felt.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry11 km (7 mi)N of epicenterPadangsidempuan(pop: 236,200)II: Very weakKota Padangsidimpuan, North SumatraIndonesia74 km (46 mi)NW of epicenterSibolga(pop: 91,300)II: Very weakNorth SumatraIndonesia88 km (55 mi)N of epicenterTarutung(pop: 39,500)II: Very weakKabupaten Tapanuli Utara, North SumatraIndonesia102 km (63 mi)NE of epicenterBandar(pop: 31,400)II: Very weakKabupaten Labuhan Batu, North SumatraIndonesia111 km (69 mi)NE of epicenterRantauprapat(pop: 103,000)II: Very weakKabupaten Labuhan Batu, North SumatraIndonesia126 km (78 mi)NW of epicenterBarus(pop: 18,300)II: Very weakKabupaten Tapanuli Tengah, North SumatraIndonesia180 km (112 mi)SW of epicenterTeluk Dalam(pop: 25,800)I: Not feltKabupaten Nias Selatan, North SumatraIndonesia183 km (114 mi)W of epicenterGunungsitoli(pop: 136,700)I: Not feltNorth SumatraIndonesia188 km (117 mi)N of epicenterPematangsiantar(pop: 274,800)I: Not feltKota Pematang Siantar, North SumatraIndonesia194 km (120 mi)N of epicenterKisaran(pop: 141,900)I: Not feltKabupaten Asahan, North SumatraIndonesia194 km (121 mi)NW of epicenterSidikalang(pop: 50,700)I: Not feltKabupaten Dairi, North SumatraIndonesia195 km (121 mi)NW of epicenterParopo(pop: 16,100)I: Not feltKabupaten Dairi, North SumatraIndonesia197 km (122 mi)N of epicenterTanjungbalai(pop: 183,200)I: Not feltKota Tanjung Balai, North SumatraIndonesia198 km (123 mi)NW of epicenterTongging(pop: 16,000)I: Not feltKabupaten Karo, North SumatraIndonesia198 km (123 mi)NW of epicenterSingkil(pop: 46,800)I: Not feltNanggroe Aceh Darussalam ProvinceIndonesia201 km (125 mi)N of epicenterTeluk Nibung(pop: 25,100)I: Not feltKota Tanjung Balai, North SumatraIndonesia204 km (127 mi)N of epicenterPekan Bahapal(pop: 40,000)I: Not feltKabupaten Simalungun, North SumatraIndonesia216 km (134 mi)SE of epicenterBukittinggi(pop: 121,000)I: Not feltProvinsi Sumatera BaratIndonesia217 km (135 mi)NW of epicenterSubulussalam(pop: 90,800)I: Not feltNanggroe Aceh Darussalam ProvinceIndonesia220 km (137 mi)NW of epicenterKabanjahe(pop: 73,600)I: Not feltKabupaten Karo, North SumatraIndonesia226 km (140 mi)SE of epicenterPayakumbuh(pop: 139,600)I: Not feltProvinsi Sumatera BaratIndonesia227 km (141 mi)E of epicenterBalai Pungut(pop: 56,500)I: Not feltKabupaten Bengkalis, RiauIndonesia228 km (142 mi)N of epicenterTebingtinggi(pop: 117,500)I: Not feltKota Tebing Tinggi, North SumatraIndonesia229 km (142 mi)N of epicenterBerastagi(pop: 48,200)I: Not feltKabupaten Karo, North SumatraIndonesia231 km (144 mi)SE of epicenterPadangpanjang(pop: 58,600)I: Not feltKota Padang Panjang, Provinsi Sumatera BaratIndonesia232 km (144 mi)SE of epicenterPariaman(pop: 92,200)I: Not feltProvinsi Sumatera BaratIndonesia233 km (145 mi)W of epicenterLahewa(pop: 24,500)I: Not feltKabupaten Nias Utara, North SumatraIndonesia247 km (153 mi)E of epicenterDumai(pop: 331,800)I: Not feltRiauIndonesia256 km (159 mi)N of epicenterDeli Tua(pop: 27,900)I: Not feltKabupaten Deli Serdang, North SumatraIndonesia257 km (160 mi)N of epicenterPerbaungan(pop: 157,200)I: Not feltKabupaten Serdang Bedagai, North SumatraIndonesia257 km (160 mi)E of epicenterPekanbaru(pop: 1,085,000)I: Not feltRiauIndonesia264 km (164 mi)N of epicenterMedan(pop: 2,435,300)I: Not feltNorth SumatraIndonesia265 km (164 mi)N of epicenterPercut(pop: 311,100)I: Not feltKabupaten Deli Serdang, North SumatraIndonesia265 km (165 mi)N of epicenterSunggal(pop: 157,900)I: Not feltKota Medan, North SumatraIndonesia272 km (169 mi)N of epicenterBinjai(pop: 279,300)I: Not feltNorth SumatraIndonesia276 km (172 mi)SE of epicenterPadang(pop: 909,000)I: Not feltProvinsi Sumatera BaratIndonesia279 km (173 mi)SE of epicenterSolok(pop: 73,400)I: Not feltProvinsi Sumatera BaratIndonesia285 km (177 mi)N of epicenterBelawan(pop: 102,700)I: Not feltKota Medan, North SumatraIndonesia297 km (185 mi)N of epicenterLabuhan Deli(pop: 49,700)I: Not feltKota Medan, North SumatraIndonesia340 km (211 mi)NE of epicenterKuala Lumpur(pop: 1,454,000)I: Not feltKuala LumpurMalaysiaNotes:(*) 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 GMT2026-08-26EpicenterAgency4.0111 km69 mi06:58:43NORTHERN SUMATRA, INDONESIAEMSC (European-Mediterranean Seismological Centre)4.0111 km69 mi06:58:43Northern Sumatra, Indonesia0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.0111 km69 mi06:58:43Northern Sumatra, Indonesia0 km (0 mi) epicenter difference with EMSCBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)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 1 km2 (0 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Aug 26, 2026 01:58 pm (Jakarta)11 minutes ago4.0111 km0 km - This quake11 km S of Padangsidempuan, Kota Padangsidimpuan, North Sumatra, IndonesiaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake11 minutes agoAug 26, 2026 06:58 GMT / Aug 26, 2026 01:58 pm (Jakarta time)Lat / Lng: 1.28 / 99.26: Northern Sumatra, IndonesiaSource: EMSCOther sources: RaspberryShake: 4.0 / 111 km, BMKG: 4.0 / 111 kmDetail info | You felt it? - Report it!',4.0,40, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',1.28,99.26,'11 minutes ago: Mag. 4.0, Northern Sumatra, Indonesia','Earthquake: Mag 4.0 / 111 km (69 mi) depth11 minutes agoAug 26, 2026 06:58 GMT / Aug 26, 2026 01:58 pm (Jakarta time)Lat / Lng: 1.28 / 99.26: Northern Sumatra, IndonesiaSource: EMSCOther sources: RaspberryShake: 4.0 / 111 km, BMKG: 4.0 / 111 kmDetail info | You felt it? - Report it!','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (function(){let done=false;async function loadPrevious(){if(done)return;done=true;while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=23313364","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){let s=d.getElementById("olderQuakesSection");if(s)s.remove();return};let table=d.getElementById("qTableOlder");if(!table)return;table.innerHTML+=o.tableRows,qTableOlder.alternateBg();let ph=d.getElementById("placeholder_largestQText");if(ph)ph.innerHTML=o.html;let wrap=d.getElementById("sectionPreviousCWrap");if(wrap)wrap.style.display="";eval(o.js)}})}let d=document,target=d.getElementById("sectionPreviousCWrap")||d.getElementById("placeholder_largestQText")||d.getElementById("qTableOlder");if(!target||!("IntersectionObserver" in window)){loadPrevious();return}let obs=new IntersectionObserver(function(entries){if(entries.some(e=>e.isIntersecting)){obs.disconnect();loadPrevious()}},{rootMargin:"300px 0px"});obs.observe(target)})();]]>