Moderate magnitude 4.2 earthquake at unknown depth19 Jul 00:45 UTC: First to report: BMKG after 5 minutes.19 Jul 00:49: Epicenter location corrected by 8.9 km (5.5 mi) towards NNW.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 19, 2025 00:40:14 UTC - Local time at epicenterSaturday, Jul 19, 2025, at 08:40 am (GMT +8)Statusconfirmed (manually revised)Magnitude4.2Depth10 kmEpicenter latitude / longitude10.47°S / 120.25°EKabupaten Sumba Timur, East Nusa Tenggara, IndonesiaSeismic antipode10.47°N / 59.75°W Trinidad and TobagoShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoInierie (193 km / 120 mi)Weather at epicenter at time of quakeOvercast Clouds 25.1°C (77 F), humidity: 67%, wind: 4 m/s (7 kts) from EEstimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | equivalent to ONE quake of magnitude 4.2 | about seismic energy24 minutes agoJul 19, 2025 00:40 GMT / Jul 19, 2025 08:40 am (GMT +8)Lat / Lng: -10.47 / 120.25: Sumba Region, IndonesiaSource: BMKGOther sources: EMSC: 4.2 / 10 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-21971384',-10.47000,120.25000,'24 minutes ago: Mag. 4.2, 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 90 km (56 mi) distance north 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)N of epicenterWaingapu(pop: 35,900)II: Very weakKabupaten Sumba Timur, East Nusa TenggaraIndonesia160 km (100 mi)NW of epicenterTambolaka(pop: 35,800)II: Very weakKabupaten Sumba Barat Daya, East Nusa TenggaraIndonesia208 km (129 mi)N of epicenterRuteng(pop: 41,500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia212 km (132 mi)N of epicenterKondas(pop: 500)II: Very weakKabupaten Manggarai, East Nusa TenggaraIndonesia223 km (139 mi)N of epicenterLabuan Bajo(pop: 188,700)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia225 km (140 mi)N of epicenterKomodo(pop: 2,000)II: Very weakKabupaten Manggarai Barat, East Nusa TenggaraIndonesia238 km (148 mi)NE of epicenterEnde(pop: 87,300)I: Not feltEast Nusa TenggaraIndonesia253 km (157 mi)NW of epicenterSape(pop: 5,000)I: Not feltKabupaten Bima, West Nusa TenggaraIndonesia279 km (173 mi)NW of epicenterBima(pop: 161,400)I: Not feltWest Nusa TenggaraIndonesia291 km (181 mi)NW of epicenterDompu(pop: 55,000)I: Not feltWest Nusa TenggaraIndonesia298 km (185 mi)NE of epicenterMaumere(pop: 87,700)I: Not feltKabupaten Sikka, East Nusa TenggaraIndonesia307 km (191 mi)E of epicenterBaa(pop: 1,260)I: Not feltKabupaten Rote Ndao, East Nusa TenggaraIndonesia369 km (229 mi)E of epicenterKupang(pop: 442,800)I: Not feltEast Nusa TenggaraIndonesia380 km (236 mi)NW of epicenterPototano(pop: 5,000)I: Not feltKabupaten Sumbawa, West Nusa TenggaraIndonesia380 km (236 mi)NW of epicenterSumbawa Besar(pop: 62,800)I: Not feltKabupaten Sumbawa, West 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!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 GMT2025-07-19EpicenterAgency4.210 km6.2 mi(*)00:40:14Sumba Region, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.210 km6.2 mi(*)00:40:14SUMBA REGION, INDONESIA0 km (0 mi) epicenter difference with BMKGEMSC (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.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 2 km2 (1 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)Jul 19, 2025 08:40 am (GMT +8)24 minutes ago4.210 km0 km - This quakeIndian Ocean, 90 km S of Waingapu, IndonesiaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 55 years and our earthquake archive back to 1900, there are about 62 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.04 quakes per year (or 1 quake every 25 years)Mag. 5 or higher: 0.72 quakes per year (or 1 quake every 1.4 years)Mag. 4 or higher: 10 quakes per yearMag. 3 or higher: 35.8 quakes per year (or 3 quakes per month)Mag. 2 or higher: 60 quakes per year (or 5 quakes per month)Mag. 1 or higher: 61 quakes per year (or 5.1 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 5 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 23 to 27 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 20 weeks after a magnitude 4.6 earthquake had hit on Thursday, Feb 27, 2025, at 05:31 am (GMT +8 local time) in 85 km (53 mi) distance to the north:Mag. 4.6 earthquake 29 km west of Waingapu - East Nusa Tenggara, Indonesia - Feb 27, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 5.9. It had occurred 7 years earlier, on Tuesday, Oct 2, 2018, at 08:16 am local time (Asia/Makassar GMT +8) in East Nusa Tenggara, Indonesia:Mag. 5.9 earthquake Indian Ocean - 92 km south of Waingapu, Indonesia - Oct 2, 2018 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.3. It had occurred 48 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 TimeMagDepthDistanceLocationDetailsMapFeb 27, 05:31 am (GMT +8)4.632 km85 km (53 mi) to the N 29 km west of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoFeb 4, 05:30 am (GMT +8)4.710 km21 km (13 mi) to the SWIndian Ocean, 109 km south of Waingapu, IndonesiaInfoFeb 4, 04:16 am (GMT +8)4.419 km12 km (7.6 mi) to the EIndian Ocean, 99 km southeast of Pulau Sumba Island, IndonesiaInfoJan 8, 01:16 am (GMT +8)4.319 km35 km (22 mi) to the SE116 km SSE of Waingapu, IndonesiaInfoJan 4, 01:58 am (Makassar)4.131 km84 km (52 mi) to the NESavu Sea, 76 km east of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoJun 15, 2024 02:16 am (Makassar)4.411 km19 km (12 mi) to the NWIndian Ocean, 73 km south of Waingapu, IndonesiaInfoOct 27, 2023 03:49 pm (Makassar)5.544 km85 km (53 mi) to the N 7.6 km southwest of Waingapu, IndonesiaInfoOct 7, 2020 02:50 pm (GMT +8)5.147 km92 km (57 mi) to the ESavu Sea, 55 km west of Pulau Raijua Island, East Nusa Tenggara, Indonesia 2 reportsInfoJun 17, 2019 04:13 am (Makassar)5.224 km30 km (19 mi) to the NWIndian Ocean, 81 km south of Waingapu, IndonesiaInfoOct 3, 2018 08:38 pm (GMT +8)5.310 km13 km (7.9 mi) to the SWIndian Ocean, 23 km south of Pulau Mangudu Island, East Nusa Tenggara, Indonesia 1 reportInfoOct 3, 2018 05:58 pm (GMT +8)5.20 km30 km (19 mi) to the SE Sumba Region, Indonesia 4 reportsInfoOct 2, 2018 03:01 pm (Makassar)5.010 km2.5 km (1.6 mi) to the SIndian Ocean, 23 km southeast of Pulau Mangudu Island, IndonesiaInfoOct 2, 2018 12:49 pm (GMT +8)5.510 km21 km (13 mi) to the SW Sumba Region, Indonesia 11 reportsInfoOct 2, 2018 08:16 am (Makassar)5.910 km6.7 km (4.1 mi) to the W Sumba Region, Indonesia 26 reportsInfoOct 2, 2018 07:59 am (GMT +8)5.910 km11 km (6.9 mi) to the S Sumba Region, Indonesia 8 reportsInfoApr 26, 2015 06:37 pm (GMT +8)5.110 km25 km (15 mi) to the SEIndian Ocean, 43 km south of Pulau Salura Island, East Nusa Tenggara, IndonesiaInfoJul 17, 2006 11:59 am (Makassar)5.07.1 km28 km (18 mi) to the NE 68 km south of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoJun 5, 2003 01:38 am (Makassar)5.133 km21 km (13 mi) to the NIndian Ocean, 70 km south of Waingapu, IndonesiaInfoMay 24, 2001 05:27 am (Makassar)5.333 km27 km (17 mi) to the N 64 km south of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoApr 8, 2000 04:55 pm (GMT +8)5.033 km105 km (65 mi) to the SIndian Ocean, 144 km southwest of Pulau Raijua Island, IndonesiaInfoMar 31, 2000 01:01 pm (Makassar)5.235 km88 km (55 mi) to the NWIndian Ocean, 37 km southwest of Pulau Sumba Island, IndonesiaInfoAug 7, 1994 01:52 pm (Makassar)5.226 km37 km (23 mi) to the NWIndian Ocean, 64 km south of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoMay 17, 1991 02:37 pm (Makassar)5.521 km78 km (49 mi) to the NWIndian Ocean, 34 km southwest of Pulau Sumba Island, IndonesiaInfoMay 12, 1991 03:59 am (Makassar)5.333 km69 km (43 mi) to the NWIndian Ocean, 30 km south of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoJun 25, 1989 08:48 pm (GMT +8)5.133 km70 km (43 mi) to the ESavu Sea, 77 km west of Pulau Raijua Island, East Nusa Tenggara, IndonesiaInfoJun 16, 1989 10:12 am (GMT +8)5.133 km79 km (49 mi) to the WIndian Ocean, 90 km southwest of Pulau Sumba Island, IndonesiaInfoJan 25, 1985 04:26 pm (Makassar)5.233 km14 km (8.9 mi) to the EIndian Ocean, 92 km south of Waingapu, IndonesiaInfoAug 8, 1980 03:21 pm (Makassar)5.433 km54 km (33 mi) to the NWIndian Ocean, 64 km south of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoSep 9, 1977 07:18 am (GMT +8)5.233 km78 km (49 mi) to the SWIndian Ocean, 147 km south of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoAug 19, 1977 02:08 pm (GMT +8)8.325 km219 km (136 mi) to the WIndian Ocean, 215 km southwest of Tambolaka, IndonesiaInfoJun 14, 1973 10:49 pm (Makassar)5.633 km44 km (27 mi) to the NE 66 km southeast of Waingapu, IndonesiaInfoOct 18, 1972 05:23 am (Makassar)5.930 km27 km (17 mi) to the EIndian Ocean, 85 km south of Waingapu, IndonesiaInfoApr 6, 1959 10:12 pm (Makassar)6.235 km43 km (26 mi) to the N 49 km south of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoMay 16, 1949 04:32 am (Universal Time)6.235 km61 km (38 mi) to the N 31 km south of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoMar 15, 1925 03:41 pm (Universal Time)6.115 km88 km (55 mi) to the SWIndian Ocean, 149 km south of Pulau Sumba Island, East Nusa Tenggara, IndonesiaInfoOct 15, 1923 07:58 am (Universal Time)6.335 km28 km (17 mi) to the N 62 km south of Waingapu, Kabupaten Sumba Timur, East Nusa Tenggara, IndonesiaInfoOct 15, 1923 07:32 am (Universal Time)6.315 km91 km (56 mi) to the NWIndian Ocean, 47 km southwest of Pulau Sumba Island, 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]