Moderate magnitude 4.0 earthquake at 9 km depth17 Jun 01:11 UTC: First to report: BMKG after 3 minutes.17 Jun 01:13: Magnitude recalculated from 4.1 to 4.0. Hypocenter depth recalculated from 10.00 to 9.00 km (from 6.2 to 5.6 mi). Epicenter location corrected by 2.5 km (1.5 mi) towards ENE.17 Jun 01:14: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeJun 17, 2026 01:08:01 UTC - Local time at epicenterWednesday, Jun 17, 2026, at 09:08 am (Asia/Makassar GMT +8)Statusconfirmed (manually revised)Magnitude4.00Depth9 kmEpicenter latitude / longitude9.62°S / 119.45°EKabupaten Sumba Barat, East Nusa Tenggara, IndonesiaSeismic antipode9.62°N / 60.55°WVenezuelaShaking intensityIV Light shaking near epicenterFelt1 reportPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoWai Sano (118 km / 73 mi)Weather at epicenter at time of quakeClear Sky 25.6°C (78 F), humidity: 58%, wind: 1 m/s (2 kts) from SEEstimated 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 energy22 minutes ago reported feltJun 17, 2026 01:08 GMT / Jun 17, 2026 09:08 am (Makassar time)Lat / Lng: -9.62 / 119.45: Sumba Region, IndonesiaSource: EMSCOther sources: RaspberryShake: 4.1 / 10 km, BMKG: 4.1 / 10 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23107337',-9.62000,119.45000,'22 minutes ago: Mag. 4.0, 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 89 km (56 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(*)RegionCountry32 km (20 mi)NW of epicenterTambolaka(pop: 35,800)III: WeakKabupaten Sumba Barat Daya, East Nusa TenggaraIndonesia89 km (56 mi)E of epicenterWaingapu(pop: 35,900)II: Very weakKabupaten Sumba Timur, East Nusa TenggaraIndonesia115 km (71 mi)N of epicenterKomodo(pop: 2,000)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia128 km (79 mi)NW of epicenterSape(pop: 5,000)II: Very weakKabupaten Bima, West Nusa TenggaraIndonesia133 km (83 mi)NE of epicenterKondas(pop: 500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia134 km (83 mi)N of epicenterLabuan Bajo(pop: 188,700)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia152 km (94 mi)NW of epicenterBima(pop: 161,400)II: Very weakWest Nusa TenggaraIndonesia158 km (98 mi)NE of epicenterRuteng(pop: 41,500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia162 km (101 mi)NW of epicenterDompu(pop: 55,000)II: Very weakWest Nusa TenggaraIndonesia255 km (158 mi)NW of epicenterPototano(pop: 5,000)I: Not feltKabupaten Sumbawa, West Nusa TenggaraIndonesia256 km (159 mi)NW of epicenterSumbawa Besar(pop: 62,800)I: Not feltKabupaten Sumbawa, West Nusa TenggaraIndonesia258 km (160 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 TenggaraIndonesia323 km (201 mi)E of epicenterMaumere(pop: 87,700)I: Not feltKabupaten Sikka, East Nusa TenggaraIndonesia330 km (205 mi)W of epicenterLabuan Lombok(pop: 10,000)I: Not felt330 km (205 mi)W of epicenterLabuan Lombok(pop: 10,000)I: Not feltIndonesia330 km (205 mi)W 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 TenggaraIndonesia357 km (222 mi)NW of epicenterBangsal(pop: 100)I: Not feltWest Nusa TenggaraIndonesia460 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 quake (1)So far, we have received 1 report for this quake from Indonesia.It came from near Tambolaka, a town with 36,000 inhabitants in East Nusa Tenggara in 32 km (20 mi) distance northwest of the epicenter, Indonesia.This section is being updated as new data comes in.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.Translate36 km of Tambolaka, Southwest Sumba Regency, East Nusa Tenggara (21.1 km SW of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsTambolaka, East Nusa Tenggara, Indonesia(Pop.: 35,790)32 km (20 mi)NW of epicenterIII: Weak shaking1Note: Only reports with latitude/longitude coordinate positions given (1 in total) could be used for statistics.What is Intensity and the Mercalli Intensity Scale?The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!Number of reports by intensityShaking intensityNumber of reportsMin-Max distance from epicenter (*)Average distance (*)III: Weak shaking121–21 km (13.1–13.1 mi)21 km (13 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (1 in total) could be used for geographic statistics.Get the Android appI didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.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 GMT2026-06-17EpicenterAgency4.09 km5.6 mi01:08:01SUMBA REGION, INDONESIAEMSC (European-Mediterranean Seismological Centre)4.110 km6.2 mi(*)01:08:01Sumba Region, Indonesia1.1 km (0.7 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.110 km6.2 mi(*)01:08:01Sumba Region, Indonesia1.1 km (0.7 mi) epicenter difference with EMSCBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)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)Jun 17, 2026 09:08 am (Makassar)22 minutes ago4.09 km0 km - This quakeKabupaten Sumba Barat, 32 km SE of Tambolaka, 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 382 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.13 quakes per year (or 1 quake every 7.7 years)Mag. 5 or higher: 2.4 quakes per yearMag. 4 or higher: 32.4 quakes per year (or 2.7 quakes per month)Mag. 3 or higher: 156 quakes per year (or 13 quakes per month)Mag. 2 or higher: 378 quakes per year (or 31.5 quakes per month)Mag. 1 or higher: 382 quakes per year (or 31.8 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 16 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 earthquakeThe earthquake occurred 2 days after a magnitude 4.6 earthquake had hit on Monday, Jun 15, 2026, at 02:30 am (GMT +8 local time) in 65 km (41 mi) distance to the southwest:Mag. 4.6 earthquake Indian Ocean - 70 km south of Tambolaka, Indonesia - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.3. It had occurred 7 years earlier, on Tuesday, Jan 22, 2019, at 01:10 pm (GMT +8 local time) in Indian Ocean, Indonesia:Mag. 6.3 earthquake Indian Ocean - 112 km southwest of Pulau Sumba Island, Indonesia - Jan 22, 2019 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.3. It had occurred 49 years ago earlier, on Friday, Aug 19, 1977, at 02:08 pm (GMT +8 local time) in East Nusa Tenggara, Indonesia:Mag. 8.3 earthquake Indian Ocean - 215 km southwest of Tambolaka, Indonesia - Aug 19, 1977 - Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.Max results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageDate and TimeMagDepthDistanceLocationDetailsMapJun 15, 02:30 am (GMT +8)4.635 km65 km (41 mi) to the SWIndian Ocean, 70 km south of Tambolaka, Indonesia I FELT ITInfoJun 14, 06:48 pm (GMT +8)4.110 km59 km (36 mi) to the NWSelat Sumba, 31 km north of Tambolaka, Indonesia I FELT ITInfoMay 11, 06:18 am (GMT +8)4.19 km64 km (40 mi) to the SIndian Ocean, 86 km south of Tambolaka, IndonesiaInfoMay 5, 02:44 pm (GMT +8)5.836 km57 km (35 mi) to the SIndian Ocean, 77 km south of Tambolaka, Indonesia 5 reportsInfoMay 5, 01:01 pm (GMT +8)4.39 km77 km (48 mi) to the SIndian Ocean, 96 km south of Tambolaka, Indonesia 1 reportInfoJul 17, 2025 05:04 pm (GMT +8)5.726 km79 km (49 mi) to the SIndian Ocean, 96 km south of Tambolaka, Indonesia 3 reportsInfoJan 22, 2019 01:10 pm (GMT +8)6.316 km77 km (48 mi) to the SWIndian Ocean, 112 km southwest of Pulau Sumba Island, Indonesia 26 reportsInfoJan 22, 2019 07:59 am (GMT +8)5.915 km82 km (51 mi) to the SWIndian Ocean, 117 km southwest of Pulau Sumba Island, Indonesia 2 reportsInfoFeb 12, 2016 06:02 pm (Makassar)6.138 km26 km (16 mi) to the SW Sumba Region, Indonesia 16 reportsInfoOct 25, 2009 04:54 am (GMT +8)5.635 km78 km (49 mi) to the SWIndian Ocean, 71 km southwest of Tambolaka, IndonesiaInfoJul 13, 2009 06:52 pm (GMT +8)5.965 km55 km (34 mi) to the NSelat Sumba, 33 km north of Tambolaka, IndonesiaInfoMay 24, 2007 09:06 am (Makassar)5.638 km72 km (45 mi) to the WIndian Ocean, 50 km west of Tambolaka, IndonesiaInfoOct 30, 2000 08:01 pm (Makassar)6.033 km42 km (26 mi) to the WKabupaten Sumba Barat Daya, 130 km west of Waingapu, IndonesiaInfoOct 7, 2000 07:57 pm (Makassar)5.933 km40 km (25 mi) to the SIndian Ocean, 63 km south of Tambolaka, IndonesiaInfoJan 29, 2000 06:57 am (GMT +8)5.683 km76 km (47 mi) to the WIndian Ocean, 60 km southwest of Tambolaka, IndonesiaInfoFeb 11, 1997 03:25 am (Makassar)5.933 km7 km (4.3 mi) to the EKabupaten Sumba Tengah, 83 km west of Waingapu, IndonesiaInfoMay 25, 1990 04:09 am (Makassar)7.1589 km270 km (168 mi) to the NFlores Sea, Provinsi Sulawesi Selatan, 136 km north of Labuan Bajo, IndonesiaInfoDec 19, 1986 11:41 am (Makassar)6.525 km43 km (27 mi) to the SWIndian Ocean, 55 km south of Tambolaka, IndonesiaInfoOct 5, 1984 12:31 am (GMT +8)6.334 km76 km (47 mi) to the WIndian Ocean, 65 km southwest of Tambolaka, IndonesiaInfoDec 19, 1983 01:28 am (Makassar)5.836 km79 km (49 mi) to the NSelat Sumba, 55 km south of Labuan Bajo, IndonesiaInfoNov 1, 1983 01:37 am (GMT +8)6.483 km73 km (46 mi) to the NWSelat Sumba, West Nusa Tenggara, 46 km north of Tambolaka, IndonesiaInfoAug 26, 1977 02:09 am (GMT +8)6.133 km100 km (62 mi) to the SWIndian Ocean, 114 km south of Tambolaka, IndonesiaInfoAug 19, 1977 02:08 pm (GMT +8)8.325 km208 km (129 mi) to the SWIndian Ocean, 215 km southwest of Tambolaka, IndonesiaInfoJan 2, 1977 05:55 pm (GMT +8)6.319 km79 km (49 mi) to the SWIndian Ocean, 87 km south of Tambolaka, IndonesiaInfoMay 21, 1975 05:33 am (Makassar)5.862 km58 km (36 mi) to the WIndian Ocean, 40 km southwest of Tambolaka, IndonesiaInfoDec 19, 1973 12:43 pm (Makassar)6.058 km20 km (13 mi) to the NKabupaten Sumba Tengah, 92 km west of Waingapu, IndonesiaInfoApr 11, 1973 03:55 am (Makassar)5.833 km24 km (15 mi) to the SWIndian Ocean, 40 km south of Tambolaka, IndonesiaInfoApr 13, 1951 06:14 pm (GMT +8)6.225 km59 km (37 mi) to the SWIndian Ocean, 63 km south of Tambolaka, IndonesiaInfoNov 22, 1945 08:50 pm (Universal Time)6.035 km77 km (48 mi) to the WIndian Ocean, 62 km southwest of Tambolaka, IndonesiaInfoDec 21, 1938 12:26 pm (Universal Time)6.325 km75 km (47 mi) to the WIndian Ocean, 62 km southwest of Tambolaka, IndonesiaInfoAug 24, 1938 03:43 pm (Universal Time)5.735 km66 km (41 mi) to the SWIndian Ocean, 66 km southwest of Tambolaka, IndonesiaInfoJan 2, 1936 05:26 pm (Universal Time)6.235 km32 km (20 mi) to the NSelat Sumba, 35 km east of Tambolaka, IndonesiaInfoJul 30, 1935 05:44 am (Universal Time)6.260 km58 km (36 mi) to the NSelat Sumba, 44 km northeast of Tambolaka, IndonesiaInfoFeb 24, 1931 05:28 pm (Universal Time)6.035 km72 km (45 mi) to the WIndian Ocean, 64 km southwest of Tambolaka, IndonesiaInfoOct 15, 1923 07:32 am (Universal Time)6.315 km40 km (25 mi) to the SEIndian Ocean, 47 km southwest of Pulau Sumba Island, IndonesiaInfoMay 9, 1922 01:50 pm (Universal Time)6.935 km93 km (58 mi) to the NWIndian Ocean, 63 km west of Tambolaka, IndonesiaInfoMap of earlier quakes in the area of this quakeMax results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageOldest quakes are shown in yellow, most recent in red.[quakes -][quakes +][smaller][bigger]