Moderate magnitude 4.1 earthquake at 84 km depth31 Mar 23:56 UTC: First to report: RaspberryShake after 5 minutes.31 Mar 23:56: Now using data updates from BMKG31 Mar 23:58: Magnitude recalculated from 3.8 to 4.1. Epicenter location corrected by 5.7 km (3.5 mi) towards ENE.I didn't feel itI felt this quakeEarthquake detailsDate & timeMar 31, 2026 23:51:31 UTC - Local time at epicenterWednesday, Apr 1, 2026, at 07:51 am (GMT +8)Statusconfirmed (manually revised)Magnitude4.1Depth84 kmEpicenter latitude / longitude0.43°N / 122.26°EBoalemo Regency, Gorontalo, IndonesiaSeismic antipode0.43°S / 57.74°WBrazilShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoUna Una (99 km / 62 mi)Weather at epicenter at time of quakeBroken Clouds 26.9°C (80 F), humidity: 79%, wind: 1 m/s (2 kts) from NNEEstimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | equivalent to ONE quake of magnitude 4.1 | about seismic energy9 minutes agoMar 31, 2026 23:51 GMT / Apr 1, 2026 07:51 am (GMT +8)Lat / Lng: 0.43 / 122.26: Minahassa Peninsula, SulawesiSource: BMKGOther sources: RaspberryShake: 4.1 / 84 km, EMSC: 3.8 / 85 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22861479',0.43000,122.26000,'9 minutes ago: Mag. 4.1, Minahassa Peninsula, Sulawesi',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 Gorontalo, a city with more than 200,000 inhabitants in Indonesia, in 90 km (56 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(*)RegionCountry90 km (56 mi)E of epicenterGorontalo(pop: 198,500)II: Very weakGorontaloIndonesia165 km (102 mi)S of epicenterLuwuk(pop: 47,800)II: Very weakKabupaten Banggai, Sulawesi TengahIndonesia242 km (150 mi)E of epicenterModisi(pop: 560)I: Not feltSulawesi UtaraIndonesia263 km (164 mi)SW of epicenterPoso(pop: 47,500)I: Not feltSulawesi TengahIndonesia300 km (186 mi)E of epicenterTomohon(pop: 27,600)I: Not feltSulawesi UtaraIndonesia305 km (189 mi)SW of epicenterPalu(pop: 373,200)I: Not feltSulawesi TengahIndonesia311 km (193 mi)E of epicenterTondano(pop: 33,300)I: Not feltKabupaten Minahasa, Sulawesi UtaraIndonesia311 km (193 mi)NE of epicenterManado(pop: 451,900)I: Not feltSulawesi UtaraIndonesia324 km (201 mi)E of epicenterLaikit, Laikit II (Dimembe)(pop: 8,000)I: Not feltKabupaten Minahasa Utara, Sulawesi UtaraIndonesia338 km (210 mi)E of epicenterBitung(pop: 225,100)I: Not feltSulawesi UtaraIndonesiaNotes:(*) 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 GMT2026-03-31EpicenterAgency4.184 km52 mi23:51:31Minahassa Peninsula, SulawesiBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.184 km52 mi23:51:31Minahassa Peninsula, Sulawesi0 km (0 mi) epicenter difference with BMKGRaspberryShake (RaspberryShake)3.885 km53 mi23:51:31MINAHASA, SULAWESI, INDONESIA5.7 km (3.5 mi) epicenter difference with BMKGEMSC (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 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)Apr 1, 2026 07:51 am (GMT +8)9 minutes ago4.184 km0 km - This quake90 km W of Gorontalo, Kota Gorontalo, Gorontalo, IndonesiaMain 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 260 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25 years)Mag. 6 or higher: 0.19 quakes per year (or 1 quake every 5.3 years)Mag. 5 or higher: 2.2 quakes per yearMag. 4 or higher: 27.9 quakes per yearMag. 3 or higher: 108 quakes per year (or 9 quakes per month)Mag. 2 or higher: 249 quakes per year (or 20.7 quakes per month)Mag. 1 or higher: 260 quakes per year (or 21.6 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 5 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 25 to 30 years.Number of quakes per yearPrevious quakes in the same area of this earthquake