Moderate magnitude 4.1 earthquake at unknown depth8 Oct 02:35 UTC: First to report: RaspberryShake after 5 minutes.8 Oct 02:35: Now using data updates from BMKGI didn't feel itI felt this quakeEarthquake detailsDate & timeOct 8, 2026 02:30:17 UTC - Local time at epicenterThursday, Oct 8, 2026, at 02:30 am (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.1Depth10 kmEpicenter latitude / longitude9.68°S / 119.43°EKabupaten Sumba Barat, East Nusa Tenggara, IndonesiaSeismic antipode9.68°N / 60.57°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoDoro Otota (107 km / 66 mi)Estimated 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 energy5 minutes agoOct 8, 2026 02:30 GMT / Oct 8, 2026 02:30 am (Universal Time)Lat / Lng: -9.68 / 119.43: Sumba Region, IndonesiaSource: BMKGOther sources: RaspberryShake: 4.1 / 10 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23419555',-9.68000,119.43000,'5 minutes ago: Mag. 4.1, Sumba Region, 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 Waingapu, a town with 36,000 inhabitants in Indonesia, in 91 km (57 mi) distance east of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry35 km (22 mi)NW of epicenterTambolaka(pop: 35,800)III: WeakKabupaten Sumba Barat Daya, East Nusa TenggaraIndonesia91 km (57 mi)E of epicenterWaingapu(pop: 35,900)II: Very weakKabupaten Sumba Timur, East Nusa TenggaraIndonesia121 km (75 mi)N of epicenterKomodo(pop: 2,000)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia133 km (83 mi)N of epicenterSape(pop: 5,000)II: Very weakKabupaten Bima, West Nusa TenggaraIndonesia140 km (87 mi)NE of epicenterKondas(pop: 500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia141 km (88 mi)N of epicenterLabuan Bajo(pop: 188,700)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia156 km (97 mi)NW of epicenterBima(pop: 161,400)II: Very weakWest Nusa TenggaraIndonesia164 km (102 mi)NE of epicenterRuteng(pop: 41,500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia166 km (103 mi)NW of epicenterDompu(pop: 55,000)II: Very weakWest Nusa TenggaraIndonesia256 km (159 mi)NW of epicenterPototano(pop: 5,000)I: Not feltKabupaten Sumbawa, West Nusa TenggaraIndonesia257 km (160 mi)NW of epicenterSumbawa Besar(pop: 62,800)I: Not feltKabupaten Sumbawa, West Nusa TenggaraIndonesia262 km (163 mi)E of epicenterEnde(pop: 87,300)I: Not feltEast Nusa TenggaraIndonesia301 km (187 mi)W of epicenterTaliwang(pop: 55,300)I: Not feltKabupaten Sumbawa Barat, West Nusa TenggaraIndonesia327 km (203 mi)E of epicenterMaumere(pop: 87,700)I: Not feltKabupaten Sikka, East Nusa TenggaraIndonesia331 km (205 mi)NW of epicenterLabuan Lombok(pop: 10,000)I: Not felt331 km (205 mi)NW of epicenterLabuan Lombok(pop: 10,000)I: Not feltIndonesia331 km (205 mi)NW of epicenterLabuan Lombok(pop: 10,000)I: Not feltWest Nusa TenggaraIndonesia338 km (210 mi)W of epicenterSelong(pop: 92,500)I: Not feltKabupaten Lombok Timur, West Nusa TenggaraIndonesia358 km (222 mi)NW of epicenterBangsal(pop: 100)I: Not feltWest Nusa TenggaraIndonesia461 km (286 mi)E of epicenterKupang(pop: 442,800)I: Not feltEast Nusa TenggaraIndonesiaNotes:(*) 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 GMT2026-10-8EpicenterAgency4.110 km6.2 mi(*)02:30:17Sumba Region, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.110 km6.2 mi(*)02:30:17Sumba Region, 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.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)Oct 8, 2026 02:30 am (Universal Time)5 minutes ago4.110 km0 km - This quakeSumba Region, 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 434 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.15 quakes per year (or 1 quake every 6.7 years)Mag. 5 or higher: 2.3 quakes per yearMag. 4 or higher: 33.3 quakes per year (or 2.8 quakes per month)Mag. 3 or higher: 157 quakes per year (or 13.1 quakes per month)Mag. 2 or higher: 429 quakes per year (or 35.8 quakes per month)Mag. 1 or higher: 432 quakes per year (or 36 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 19 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.Number of quakes per yearPrevious quakes in the same area of this earthquake