Light magnitude 3.9 earthquake at unknown depth17 Sep 09:28 UTC: First to report: EMSC after 4 minutes.17 Sep 09:29: Now using data updates from BMKGI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 17, 2026 09:24:33 UTC - Local time at epicenterThursday, Sep 17, 2026, at 05:24 pm (GMT +8)Statusconfirmed (manually revised)Magnitude3.9Depth10 kmEpicenter latitude / longitude2.55°S / 121.84°EKabupaten Morowali Utara, Sulawesi Tengah, IndonesiaSeismic antipode2.55°N / 58.16°WGuyanaShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Weather at epicenter at time of quakeBroken Clouds 23.3°C (74 F), humidity: 72%, wind: 3 m/s (5 kts) from EEstimated 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 energy13 minutes agoSep 17, 2026 09:24 GMT / Sep 17, 2026 05:24 pm (GMT +8)Lat / Lng: -2.55 / 121.84: Sulawesi, IndonesiaSource: BMKGOther sources: EMSC: 3.9 / 10 km, RaspberryShake: 3.9 / 10 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23369886',-2.55000,121.84000,'13 minutes ago: Mag. 3.9, Sulawesi, 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 Bungku, a town with 25,000 inhabitants in Indonesia, in 14.7 km (9 mi) distance east 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(*)RegionCountry15 km (9 mi)E of epicenterBungku(pop: 25,500)III: WeakMorowali Regency, Sulawesi TengahIndonesia168 km (104 mi)W of epicenterMasamba(pop: 38,000)I: Not feltKabupaten Luwu Utara, Provinsi Sulawesi SelatanIndonesia176 km (109 mi)SE of epicenterKendari(pop: 345,100)I: Not feltSoutheast SulawesiIndonesia176 km (110 mi)NW of epicenterPoso(pop: 47,500)I: Not feltSulawesi TengahIndonesia189 km (117 mi)W of epicenterPalopo(pop: 190,900)I: Not feltProvinsi Sulawesi SelatanIndonesia207 km (128 mi)NE of epicenterLuwuk(pop: 47,800)I: Not feltKabupaten Banggai, Sulawesi TengahIndonesia221 km (137 mi)W of epicenterRantepao(pop: 40,400)I: Not feltKabupaten Toraja Utara, Provinsi Sulawesi SelatanIndonesia267 km (166 mi)SW of epicenterSengkang(pop: 59,500)I: Not feltKabupaten Wajo, Provinsi Sulawesi SelatanIndonesia272 km (169 mi)S of epicenterKatobu(pop: 31,900)I: Not feltKabupaten Muna, Southeast SulawesiIndonesia273 km (169 mi)S of epicenterRaha(pop: 70,000)I: Not feltKabupaten Muna, Southeast SulawesiIndonesia278 km (173 mi)SW of epicenterWatampone(pop: 149,300)I: Not feltKabupaten Bone, Provinsi Sulawesi SelatanIndonesia285 km (177 mi)NW of epicenterPalu(pop: 373,200)I: Not feltSulawesi TengahIndonesia294 km (183 mi)W of epicenterPolewali(pop: 65,800)I: Not feltWest SulawesiIndonesia295 km (183 mi)SW of epicenterParepare(pop: 160,300)I: Not feltProvinsi Sulawesi SelatanIndonesia371 km (231 mi)SW of epicenterMaros(pop: 30,000)I: Not feltProvinsi Sulawesi SelatanIndonesiaNotes:(*) 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 GMT2026-09-17EpicenterAgency3.910 km6.2 mi(*)09:24:33Sulawesi, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)3.910 km6.2 mi(*)09:24:33SULAWESI, INDONESIA0 km (0 mi) epicenter difference with BMKGEMSC (European-Mediterranean Seismological Centre)3.910 km6.2 mi(*)09:24:33Sulawesi, Indonesia0 km (0 mi) epicenter difference with BMKGRaspberryShake (RaspberryShake)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 56 years and our earthquake archive back to 1900, there are about 245 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 5 or higher: 0.56 quakes per year (or 1 quake every 1.8 years)Mag. 4 or higher: 13.7 quakes per yearMag. 3 or higher: 95 quakes per year (or 7.9 quakes per month)Mag. 2 or higher: 230 quakes per year (or 19.1 quakes per month)Mag. 1 or higher: 245 quakes per year (or 20.4 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 4 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquake