Moderate magnitude 4.4 earthquake at 143 km depth16 Oct 22:31 UTC: First to report: RaspberryShake after 4 minutes.16 Oct 22:31: Now using data updates from BMKG16 Oct 22:33: Magnitude recalculated from 4.5 to 4.6. Hypocenter depth recalculated from 162.00 to 139.00 km (from 101 to 86 mi). Epicenter location corrected by 29 km (18 mi) towards S.16 Oct 22:37: Magnitude recalculated from 4.6 to 4.4. Hypocenter depth recalculated from 139.00 to 143.00 km (from 86 to 89 mi). Epicenter location corrected by 130 km (81 mi) towards NNW.Update Fri, 16 Oct 2026, 22:33Moderate earthquake of magnitude 4.5 just reported 90 km west of Tambolaka, IndonesiaIndonesia's Meteorology, Climatology, and Geophysical Agency reported a magnitude 4.5 quake in Indonesia near Tambolaka, Southwest Sumba Regency, East Nusa Tenggara, only 6 minutes ago. The earthquake hit early morning on Saturday, October 17th, 2026, at 6:27 am local time at an intermediate to considerable depth of 162. km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 4.6 earthquake.Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Tambolaka (pop. 35,800) located 90 km from the epicenter, and Dompu (pop. 55,000) 103 km away.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.If you were or still are in this area during the quake help others with your feedback and report it here.Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOSI didn't feel itI felt this quakeEarthquake detailsDate & timeOct 16, 2026 22:27:20 UTC - Local time at epicenterSaturday, Oct 17, 2026, at 06:27 am (Asia/Makassar GMT +8)Statusconfirmed (manually revised)Magnitude4.4Depth143 kmEpicenter latitude / longitude8.68°S / 117.86°EKabupaten Sumbawa, West Nusa Tenggara, IndonesiaSeismic antipode8.68°N / 62.14°WVenezuelaShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoTarowa (33 km / 21 mi)Weather at epicenter at time of quakeClear Sky 26.6°C (80 F), humidity: 83%, wind: 4 m/s (8 kts) from ESEEstimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | equivalent to ONE quake of magnitude 4.4 | about seismic energy12 minutes agoOct 16, 2026 22:27 GMT / Oct 17, 2026 06:27 am (Makassar time)Lat / Lng: -8.68 / 117.86: Sumbawa Region, IndonesiaSource: BMKGOther sources: RaspberryShake: 4.4 / 143 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23442616',-8.68000,117.86000,'12 minutes ago: Mag. 4.4, Sumbawa 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 Sumbawa Besar, a town with 63,000 inhabitants in Indonesia, in 53 km (33 mi) distance northwest 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(*)RegionCountry51 km (32 mi)NW of epicenterPototano(pop: 5,000)II: Very weakKabupaten Sumbawa, West Nusa TenggaraIndonesia53 km (33 mi)NW of epicenterSumbawa Besar(pop: 62,800)II: Very weakKabupaten Sumbawa, West Nusa TenggaraIndonesia68 km (42 mi)E of epicenterDompu(pop: 55,000)II: Very weakWest Nusa TenggaraIndonesia98 km (61 mi)E of epicenterBima(pop: 161,400)II: Very weakWest Nusa TenggaraIndonesia111 km (69 mi)W of epicenterTaliwang(pop: 55,300)II: Very weakKabupaten Sumbawa Barat, West Nusa TenggaraIndonesia124 km (77 mi)E of epicenterSape(pop: 5,000)II: Very weakKabupaten Bima, West Nusa TenggaraIndonesia133 km (82 mi)W of epicenterLabuan Lombok(pop: 10,000)II: Very weak133 km (82 mi)W of epicenterLabuan Lombok(pop: 10,000)II: Very weakIndonesia133 km (82 mi)W of epicenterLabuan Lombok(pop: 10,000)II: Very weakWest Nusa TenggaraIndonesia146 km (91 mi)W of epicenterSelong(pop: 92,500)II: Very weakKabupaten Lombok Timur, West Nusa TenggaraIndonesia156 km (97 mi)W of epicenterBangsal(pop: 100)II: Very weakWest Nusa TenggaraIndonesia173 km (107 mi)SE of epicenterTambolaka(pop: 35,800)II: Very weakKabupaten Sumba Barat Daya, East Nusa TenggaraIndonesia175 km (109 mi)W of epicenterPraya(pop: 35,200)II: Very weakKabupaten Lombok Tengah, West Nusa TenggaraIndonesia180 km (112 mi)E of epicenterKomodo(pop: 2,000)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia192 km (119 mi)W of epicenterMataram(pop: 429,700)II: Very weakWest Nusa TenggaraIndonesia196 km (122 mi)W of epicenterLembar(pop: 10,000)II: Very weakKabupaten Lombok Barat, West Nusa TenggaraIndonesia199 km (124 mi)W of epicenterGili Air(pop: 1,800)II: Very weakKabupaten Lombok Utara, West Nusa TenggaraIndonesia201 km (125 mi)W of epicenterSenggigi(pop: 5,000)II: Very weakKabupaten Lombok Barat, West Nusa TenggaraIndonesia224 km (139 mi)E of epicenterLabuan Bajo(pop: 188,700)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia240 km (149 mi)E of epicenterKondas(pop: 500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia248 km (154 mi)W of epicenterKarangasem(pop: 31,900)II: Very weakProvinsi BaliIndonesia248 km (154 mi)W of epicenterAmlapura(pop: 31,900)II: Very weakKabupaten Karang Asem, Provinsi BaliIndonesia249 km (155 mi)W of epicenterAmlapura(pop: 31,900)II: Very weakKabupaten Karang Asem, Provinsi BaliIndonesia251 km (156 mi)W of epicenterBedugul(pop: 20,000)II: Very weakKabupaten Karang Asem, Provinsi BaliIndonesia259 km (161 mi)W of epicenterPadangbai(pop: 1000)I: Not feltKabupaten Karang Asem, Provinsi BaliIndonesia285 km (177 mi)SE of epicenterWaingapu(pop: 35,900)I: Not feltKabupaten Sumba Timur, East Nusa TenggaraIndonesia286 km (178 mi)E of epicenterRuteng(pop: 41,500)I: Not feltKabupaten Manggarai, East 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 GMT2026-10-16EpicenterAgency4.4143 km89 mi22:27:20Sumbawa Region, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.4143 km89 mi22:27:20Sumbawa Region, Indonesia0 km (0 mi) epicenter difference with BMKGRaspberryShake (RaspberryShake)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 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Oct 17, 2026 06:27 am (Makassar)12 minutes ago4.4143 km0 km - This quakeIndian Ocean, 17 km NW of Pulau Sumbawa Island, West Nusa Tenggara, IndonesiaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquakeThe earthquake occurred 4 days after a magnitude 4.5 earthquake had hit on Tuesday, Oct 13, 2026, at 05:48 pm (GMT +8 local time) in 174 km (108 mi) distance to the southeast:Mag. 4.5 earthquake Indian Ocean - 72 km southwest 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 8 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 7.0. It had occurred 115 years ago earlier, on Wednesday, Jul 5, 1911, at 06:40 pm local time (Universal Time GMT +0) in Provinsi Sulawesi Selatan, Indonesia:Mag. 7.0 earthquake Flores Sea - 111 km north of Sumbawa Besar, Indonesia - Jul 5, 1911 -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 TimeMagDepthDistanceLocationDetailsMapOct 13, 05:48 pm (GMT +8)4.535 km174 km (108 mi) to the SEIndian Ocean, 72 km southwest of Tambolaka, Indonesia I felt itInfoOct 13, 02:42 pm (GMT +8)4.710 km139 km (87 mi) to the SEIndian Ocean, 66 km west of Tambolaka, Indonesia I felt itInfoOct 13, 12:56 am (GMT +8)4.313 km161 km (100 mi) to the SEIndian Ocean, 43 km southwest of Tambolaka, Indonesia I felt itInfoOct 8, 01:06 pm (Makassar)4.765 km133 km (82 mi) to the SEIndian Ocean, 47 km west of Tambolaka, IndonesiaInfoOct 6, 08:40 pm (Makassar)4.453 km166 km (103 mi) to the SESelat Sumba, 51 km southwest of Tambolaka, Indonesia 4 reportsInfoOct 4, 06:55 am (Makassar)5.946 km152 km (94 mi) to the SEIndian Ocean, 39 km southwest of Tambolaka, Indonesia 36 reportsInfoJun 15, 02:30 am (GMT +8)4.635 km195 km (121 mi) to the SE 69 km SSW of Tambolaka, IndonesiaInfoJun 9, 05:03 pm (GMT +8)4.824 km193 km (120 mi) to the SEKabupaten Sumba Barat, 117 km southwest of Tambolaka, IndonesiaInfoMar 31, 2025 11:54 pm (GMT +8)5.628 km200 km (124 mi) to the SE72 km SSW of Tambolaka, IndonesiaInfoJan 23, 2019 07:39 pm (GMT +8)5.610 km214 km (133 mi) to the SEIndian Ocean, 175 km southwest of Waingapu, Indonesia 4 reportsInfoJan 22, 2019 01:10 pm (GMT +8)6.316 km216 km (134 mi) to the SEIndian Ocean, 112 km southwest of Pulau Sumba Island, Indonesia 26 reportsInfoDec 30, 2016 06:30 am (Makassar)6.287 km93 km (58 mi) to the SEIndian Ocean, 62 km south of Bima, Kota Bima, West Nusa Tenggara, Indonesia 70 reportsInfoNov 28, 2009 02:04 pm (GMT +8)6.015 km222 km (138 mi) to the SEIndian Ocean, 115 km south of Tambolaka, IndonesiaInfoOct 25, 2009 04:54 am (GMT +8)5.635 km170 km (105 mi) to the SE Sumbawa region, IndonesiaInfoMay 24, 2007 09:06 am (Makassar)5.638 km141 km (88 mi) to the SEIndian Ocean, 50 km west of Tambolaka, IndonesiaInfoJul 24, 2002 11:12 am (GMT +8)5.5158 km116 km (72 mi) to the S Sumbawa Region, IndonesiaInfoJul 24, 2002 11:05 am (GMT +8)5.929 km107 km (66 mi) to the SE Sumbawa region, IndonesiaInfoFeb 15, 2002 04:10 am (GMT +8)5.5121 km94 km (59 mi) to the SIndian Ocean, 86 km south of Pulau Sumbawa Island, West Nusa Tenggara, IndonesiaInfoFeb 1, 2002 03:48 am (GMT +8)5.648 km109 km (68 mi) to the SEIndian Ocean, 75 km west of Tambolaka, IndonesiaInfoOct 30, 2001 10:34 pm (GMT +8)5.510 km110 km (69 mi) to the SE Sumbawa RegionInfoOct 1, 2001 02:49 pm (Makassar)5.5102 km132 km (82 mi) to the SE Sumbawa RegionInfoOct 30, 2000 08:01 pm (Makassar)6.033 km176 km (109 mi) to the SEKabupaten Sumba Barat Daya, 130 km west of Waingapu, IndonesiaInfoJan 29, 2000 06:57 am (GMT +8)5.683 km150 km (93 mi) to the SEIndian Ocean, 60 km southwest of Tambolaka, IndonesiaInfoMay 5, 1995 09:01 pm (GMT +8)5.733 km178 km (111 mi) to the SE 150 km W of Waingapu, IndonesiaInfoDec 12, 1994 10:52 pm (Makassar)5.626 km206 km (128 mi) to the SE 122 km WSW of Waingapu, IndonesiaInfoDec 19, 1986 11:41 am (Makassar)6.525 km201 km (125 mi) to the SE 120 km WSW of Waingapu, IndonesiaInfoOct 5, 1984 12:31 am (GMT +8)6.334 km162 km (100 mi) to the SE 145 km SSE of Dompu, IndonesiaInfoMar 11, 1982 06:32 pm (Makassar)6.433 km94 km (58 mi) to the SEIndian Ocean, 78 km southeast of Pulau Sumbawa Island, IndonesiaInfoNov 2, 1962 10:46 pm (GMT +8)5.925 km162 km (100 mi) to the S south of Sumbawa, IndonesiaInfoApr 13, 1951 06:14 pm (GMT +8)6.225 km192 km (119 mi) to the SE Sumba region, IndonesiaInfoNov 22, 1945 08:50 pm (Universal Time)6.035 km151 km (94 mi) to the SE 133 km SSE of Dompu, IndonesiaInfoDec 21, 1938 12:26 pm (Universal Time)6.325 km157 km (98 mi) to the SEIndian Ocean, 62 km southwest of Tambolaka, IndonesiaInfoAug 24, 1938 03:43 pm (Universal Time)5.735 km184 km (114 mi) to the SE 148 km WSW of Waingapu, IndonesiaInfoFeb 24, 1931 05:28 pm (Universal Time)6.035 km167 km (104 mi) to the SE 149 km SSE of Dompu, IndonesiaInfoMay 9, 1930 11:45 pm (Universal Time)5.535 km133 km (83 mi) to the S 158 km SSW of Dompu, IndonesiaInfoJul 26, 1928 12:15 pm (Universal Time)5.635 km186 km (116 mi) to the SE 123 km W of Waingapu, IndonesiaInfoMay 9, 1922 01:50 pm (Universal Time)6.935 km112 km (70 mi) to the SEIndian Ocean, 63 km west of Tambolaka, IndonesiaInfoJul 5, 1911 06:40 pm (Universal Time)7.0370 km137 km (85 mi) to the NFlores Sea, Provinsi Sulawesi Selatan, 111 km north of Sumbawa Besar, 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]