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The depth of the quake could not be determined, but is assumed to be shallow.The quake was felt by many near the epicenter.Quake Data | Interactive map | Seismograms | User reports | Earlier quakes here | Quakes in Indonesia | Quakes in or near East Timor | East Nusa Tenggara | West Nusa Tenggara | Provinsi Sulawesi SelatanHint: Click on the image to see different maps of this quake!Strong magnitude 5.5 earthquake at unknown depth21 Sep 01:43 UTC: First to report: VolcanoDiscovery after 2 minutes.21 Sep 01:45: Now using data updates from BMKG... [show all] ...21 Sep 01:50: Now using data updates from EMSC21 Sep 01:50: Hypocenter depth recalculated from 10.00 to 160.00 km (from 6.2 to 99 mi). Epicenter location corrected by 21 km (13 mi) towards NW.21 Sep 01:51: Epicenter location corrected by 6.7 km (4.1 mi) towards E.21 Sep 01:52: Epicenter location corrected by 7.2 km (4.5 mi) towards W.21 Sep 01:55: Epicenter location corrected by 41 km (26 mi) towards E.21 Sep 01:55: Epicenter location corrected by 48 km (30 mi) towards W.21 Sep 01:57: Hypocenter depth recalculated from 160.00 to 10.00 km (from 99 to 6.2 mi). Epicenter location corrected by 19 km (12 mi) towards SE.21 Sep 01:58: Now using data updates from USGSI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 21, 2026 01:41:36 UTC - Local time at epicenterMonday, Sep 21, 2026, at 09:41 am (Asia/Makassar GMT +8)Statusconfirmed (manually revised)Magnitude5.50Depth10 kmEpicenter latitude / longitude8.307°S / 120.5793°EKabupaten Manggarai Timur, East Nusa Tenggara, IndonesiaSeismic antipode8.307°N / 59.421°WQuality59 seismic stationsShaking intensityVI Strong shaking near epicenterFelt7 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoRanakah (37 km / 23 mi)Weather at epicenter at time of quakeFew Clouds 30.1°C (86 F), humidity: 52%, wind: 2 m/s (4 kts) from SEstimated seismic energy released1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) | equivalent to ONE quake of magnitude 5.5 | about seismic energy27 minutes ago reported feltSep 21, 2026 01:41 GMT / Sep 21, 2026 09:41 am (Makassar time)Lat / Lng: -8.307 / 120.5793: 35 km NNE of Ruteng, IndonesiaSource: USGSOther sources: GFZ: 5.5 / 10 km, BMKG: 5.1 / 10 km, 1 more...Detail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23379067',-8.30700,120.57930,'27 minutes ago: Mag. 5.5, 35 km NNE of Ruteng, Indonesia',html,'quakes-7-24.png',30,30,15,15,126]); 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]Quake possibly felt by 1.2 million peopleAccording to preliminary estimates from the US Geological Survey (USGS), the quake might have been felt by over 1.2 million people across Indonesia. Approx. 22,900 people were in areas with Strong shaking (intensity VI), while approx. 2,800 people might have been affected by the highest-expected shaking intensity of VII, or Very strong on the Modified Mercalli Intensity (MMI) scale.MMI LevelShaking (1,246,100 in total)Possible damageI Not feltNoneII Very weakNoneIII Weak167,200(13.42%)Probably noneIV Light989,400(79.4%)None or minor onlyV Moderate63,700(5.11%)MinorVI Strong22,900(1.84%)Minor to ModerateVII Very strong2,804(0.23%)ModerateVIII SevereSignificantIX ViolentHeavyX ExtremeCatastrophicEstimated number of people exposed to shaking from the earthquake by intensity (data coverage corresponding to attached map)Map of expected ground shaking intensity according to the MMI scale (shakemap, source: USGS)Map with population density (from white to black) in the area around the quake's epicenter (source: USGS)Alert level for this earthquake: Level GREENBased on seismic and statistical models, USGS estimates that the risk of fatalities and damage from this earthquake is low. The main factors that contribute to this evaluation are:The maximum expected ground shaking from this quake likely reached dangerous levels near the epicenter (level VII or Very strong on the MMI scale).A large number of people was exposed to strong shaking from the quake.CommentOverall, the population in this region resides in structures that are vulnerable to earthquake shaking, though resistant structures exist. The predominant vulnerable building types are unreinforced brick with concrete floor and precast concrete frame with wall construction.A magnitude 7.7 earthquake 140 km n of this event struck this region on December 12, 1992 (UTC), with estimated population exposures of 429,000 at intensity VII and 13,000 at intensity VIII, resulting in a reported 2,519 fatalities.Recent earthquakes in this area have caused secondary hazards such as landslides that might have contributed to losses.Source: USGSGreen alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.Expected fatalitiesThe risk of fatalities from this quake is considered low and classified as Level GREEN, the lowest on a color scale from Green (low) to Red (very high). USGS estimates that there is a 90.4% chance that there are no direct fatalities as effect of shaking and a 9.1% chance that between 1 and 10 fatalities occurred. The likelihood that there are more than 10 fatalities is less than 1%.Expected economic damageThe economic impact of this earthquake is expected to be minimal or small (Level GREEN). Only light damage if any should have occurred. USGS calculates an 90.4% chance of total economic loss in the range of 0-1 million US Dollars and a 9.1% risk of losses between 1 and 10 million US Dollars. Total economic loss from this quake is not likely to surpass 1 million US Dollars (less than 1% chance). Ground shaking from this quakeMap of estimated ground shaking (source:USGS)Ground accelleration map for this quakeMap of estimated ground accelleration (source:USGS)Most recent quakes Top 20 past 24 hrs Quakes in BaliNearby placesThe closest larger town where the quake might have been felt is Labuan Bajo, a city with more than 190,000 inhabitants in Indonesia, in 79 km (49 mi) distance west of the epicenter. People likely experienced light shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Timor-Leste, Dili, 550 km (342 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry36 km (22 mi)S of epicenterRuteng(pop: 41,500)V: ModerateKabupaten Manggarai, East Nusa TenggaraIndonesia66 km (41 mi)SW of epicenterKondas(pop: 500)IV: LightKabupaten Manggarai, East Nusa TenggaraIndonesia79 km (49 mi)W of epicenterLabuan Bajo(pop: 188,700)IV: LightKabupaten Manggarai Barat, East Nusa TenggaraIndonesia124 km (77 mi)W of epicenterKomodo(pop: 2,000)IV: LightKabupaten Manggarai Barat, East Nusa TenggaraIndonesia133 km (83 mi)SE of epicenterEnde(pop: 87,300)IV: LightEast Nusa TenggaraIndonesia154 km (96 mi)S of epicenterWaingapu(pop: 35,900)III: WeakKabupaten Sumba Timur, East Nusa TenggaraIndonesia178 km (111 mi)W of epicenterSape(pop: 5,000)III: WeakKabupaten Bima, West Nusa TenggaraIndonesia183 km (114 mi)E of epicenterMaumere(pop: 87,700)III: WeakKabupaten Sikka, East Nusa TenggaraIndonesia193 km (120 mi)SW of epicenterTambolaka(pop: 35,800)III: WeakKabupaten Sumba Barat Daya, East Nusa TenggaraIndonesia205 km (127 mi)W of epicenterBima(pop: 161,400)III: WeakWest Nusa TenggaraIndonesia234 km (146 mi)W of epicenterDompu(pop: 55,000)III: WeakWest Nusa TenggaraIndonesia312 km (194 mi)E of epicenterLewoleba(pop: 30,200)III: WeakKabupaten Lembata, East Nusa TenggaraIndonesia348 km (216 mi)W of epicenterSumbawa Besar(pop: 62,800)III: WeakKabupaten Sumbawa, West Nusa TenggaraIndonesia356 km (221 mi)N of epicenterSinjai(pop: 40,800)III: WeakProvinsi Sulawesi SelatanIndonesia359 km (223 mi)N of epicenterGalesong(pop: 83,100)III: WeakKabupaten Takalar, Provinsi Sulawesi SelatanIndonesia373 km (232 mi)N of epicenterMakassar(pop: 1,423,900)III: WeakProvinsi Sulawesi SelatanIndonesia384 km (238 mi)N of epicenterMaros(pop: 30,000)II: Very weakProvinsi Sulawesi SelatanIndonesia387 km (241 mi)NE of epicenterBaubau(pop: 161,300)II: Very weakSoutheast SulawesiIndonesia392 km (243 mi)SE of epicenterKupang(pop: 442,800)II: Very weakEast Nusa TenggaraIndonesia413 km (256 mi)W of epicenterTaliwang(pop: 55,300)II: Very weakKabupaten Sumbawa Barat, West Nusa TenggaraIndonesia420 km (261 mi)N of epicenterWatampone(pop: 149,300)II: Very weakKabupaten Bone, Provinsi Sulawesi SelatanIndonesia437 km (271 mi)E of epicenterKalabahi(pop: 19,200)II: Very weakKabupaten Alor, East Nusa TenggaraIndonesia442 km (275 mi)SE of epicenterSoe(pop: 40,200)II: Very weakKabupaten Timor Tengah Selatan, East Nusa TenggaraIndonesia447 km (278 mi)E of epicenterKefamenanu(pop: 48,200)II: Very weakKabupaten Timor Tengah Utara, East Nusa TenggaraIndonesia447 km (278 mi)W of epicenterSelong(pop: 92,500)II: Very weakKabupaten Lombok Timur, West Nusa TenggaraIndonesia453 km (281 mi)NE of epicenterRaha(pop: 70,000)II: Very weakKabupaten Muna, Southeast SulawesiIndonesia454 km (282 mi)NE of epicenterKatobu(pop: 31,900)II: Very weakKabupaten Muna, Southeast SulawesiIndonesia469 km (291 mi)N of epicenterSengkang(pop: 59,500)II: Very weakKabupaten Wajo, Provinsi Sulawesi SelatanIndonesia476 km (296 mi)W of epicenterPraya(pop: 35,200)II: Very weakKabupaten Lombok Tengah, West Nusa TenggaraIndonesia483 km (300 mi)E of epicenterAtambua(pop: 82,200)II: Very weakKabupaten Belu, East Nusa TenggaraIndonesia489 km (304 mi)N of epicenterParepare(pop: 160,300)II: Very weakProvinsi Sulawesi SelatanIndonesia492 km (306 mi)W of epicenterMataram(pop: 429,700)II: Very weakWest Nusa TenggaraIndonesia527 km (327 mi)NE of epicenterKendari(pop: 345,100)II: Very weakSoutheast SulawesiIndonesia550 km (342 mi)E of epicenterDili(pop: 150,000)II: Very weakDistrito de Aveiro, DiliEast Timor559 km (347 mi)N of epicenterPolewali(pop: 65,800)II: Very weakWest SulawesiIndonesia559 km (348 mi)N of epicenterMajene(pop: 73,900)II: Very weakWest SulawesiIndonesia585 km (364 mi)W of epicenterUbud(pop: 74,800)II: Very weakKabupaten Gianyar, BaliIndonesia591 km (367 mi)W of epicenterDenpasar(pop: 725,300)II: Very weakBaliIndonesia593 km (368 mi)N of epicenterPalopo(pop: 190,900)II: Very weakProvinsi Sulawesi SelatanIndonesiaNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (7)The first report about ground shaking reached us after only 2 minutes, before other agencies reported it. So far, we have received 7 reports for this quake from Indonesia. The quake was reported to have been felt in up to approx. 90–130 km (56–81 mi) distance, with isolated cases to have felt the quake even 133 km (83 mi) away.Most reports came from Labuan Bajo (1 report), a city with more than 190,000 inhabitants in East Nusa Tenggara in 79 km (49 mi) distance west of the epicenter, Indonesia. Further below is a list of places where most people reported this quake.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.Contribute:Leave a comment if you find a particular report interesting or want to add to it.Flag as inappropriate.Mark as helpful or interesting.Send your own user report!Translate80.1 km WSW of epicenter [Map] / Strong shaking (MMI VI) / both vertical and horizontal swinging / 15-20 s (reported through our iOS app)Labuan bajo (78.6 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s9.9 km W of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)63 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)Labuan bajo (80 km WSW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s : saya berada diluar rumah, lagi duduk tiba² muncul getaran kecil dan disertai guncangan goyang (reported through our app) 132.9 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)64.6 km SSE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsLabuan Bajo, East Nusa Tenggara, Indonesia(Pop.: 188,724)79 km (49 mi)W of epicenterV: Moderate shaking1Note: Only reports with latitude/longitude coordinate positions given (7 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 shaking180–80 km (50–50 mi)80 km (50 mi)IV: Light shaking363–133 km (39–83 mi)87 km (54 mi)V: Moderate shaking179–79 km (49–49 mi)79 km (49 mi)VI: Strong shaking210–80 km (6.2–50 mi)45 km (28 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (7 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 GMT2026-09-21EpicenterAgency5.510 km6.2 mi(*)01:41:36.31535 km NNE of Ruteng, IndonesiaUSGS (United States Geological Survey)5.510 km6.2 mi(*)01:41:36.86Flores Region, Indonesia10 km (6.2 mi) epicenter difference with USGSGFZ (German Research Centre for Geosciences)5.110 km6.2 mi(*)01:41:37Flores Region, Indonesia7 km (4.4 mi) epicenter difference with USGSBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)5.1410 km6.2 mi(*)01:41:36.654near Ujungpandang6.3 km (3.9 mi) epicenter difference with USGSRENASS (Réseau National de Surveillance Sismique (RéNaSS))5.510 km6.2 mi(*)01:41:36Flores Region, Indonesia10 km (6.2 mi) epicenter difference with USGSRaspberryShake (RaspberryShake)5.510 km6.2 mi(*)01:41:36.315FLORES REGION, INDONESIA0 km (0 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy."; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}document.addEventListener("DOMContentLoaded", function () { var section = document.getElementById("seismogramSection"); if (!section) return; var images = section.querySelectorAll("img.waitBg"); if (!images.length) return; images.forEach(function(img, index){ img.addEventListener("error", function(){ // If the first image fails, hide the whole section. if (index === 0) { // Remove TOC entry var tocLink = document.querySelector('#toc .tocLink[data-href="seismogramSection"]'); if (tocLink) {tocLink.remove()} // Remove whole section section.remove(); } // Otherwise remove only this station. var plot = img.closest(".plotContainer"); if (!plot) return; var station = plot.previousElementSibling; var caption = plot.nextElementSibling; if (station) station.remove(); plot.remove(); if (caption) caption.remove(); // Remove empty "Show more" var more = document.getElementById("moreSeismograms"); if (more && !more.querySelector(".plotContainer")) { more.remove(); var btn = document.getElementById("moreSeismograms_1"); if (btn) btn.remove(); } // Hide section if nothing remains. if (!section.querySelector(".plotContainer")) { section.style.display = "none"; } }, { once: true }); });});]]>SeismogramsSeismic station: Kappang, Sulawesi, Indonesia (KAPI/II network) | Distance from quake: 377 km / 234 mi | Show on map | Station InfoSeismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.1-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Marble Bar, Western Australia (MBWA/IU network) | Distance from quake: 1432 km / 890 mi | Show on map | Station InfoShow moreEarthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 731 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.06 quakes per year (or 1 quake every 15.9 years)Mag. 5 or higher: 3.2 quakes per yearMag. 4 or higher: 79 quakes per year (or 6.6 quakes per month)Mag. 3 or higher: 395 quakes per year (or 32.9 quakes per month)Mag. 2 or higher: 723 quakes per year (or 60 quakes per month)Mag. 1 or higher: 728 quakes per year (or 61 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 8 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 15 to 20 years.Number of quakes per yearPrevious quakes in the same area of this earthquake