Moderate magnitude 4.3 earthquake at 108 km depth31 Jul 05:16 UTC: First to report: BMKG after 20 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 31, 2025 04:56:04 UTC - Local time at epicenterThursday, Jul 31, 2025, at 12:56 pm (Asia/Makassar GMT +8)Statusconfirmed (manually revised)Magnitude4.3Depth108 kmEpicenter latitude / longitude8.59°S / 122.63°EKabupaten Sikka, East Nusa Tenggara, IndonesiaSeismic antipode8.59°N / 57.37°WShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoIlimuda (13 km / 8 mi)Weather at epicenter at time of quakeBroken Clouds 26.2°C (79 F), humidity: 72%, wind: 3 m/s (7 kts) from SEstimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) | equivalent to ONE quake of magnitude 4.3 | about seismic energy35 minutes agoJul 31, 2025 04:56 GMT / Jul 31, 2025 12:56 pm (Makassar time)Lat / Lng: -8.59 / 122.63: Flores Region, IndonesiaSource: BMKGOther sources: EMSC: 4.3 / 108 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22009131',-8.59000,122.63000,'35 minutes ago: Mag. 4.3, Flores 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 Maumere, a town with 88,000 inhabitants in Indonesia, in 46 km (29 mi) distance west 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(*)RegionCountry46 km (29 mi)W of epicenterMaumere(pop: 87,700)II: Very weakKabupaten Sikka, East Nusa TenggaraIndonesia110 km (68 mi)W of epicenterEnde(pop: 87,300)II: Very weakEast Nusa TenggaraIndonesia168 km (104 mi)SE of epicenterNaisano Dua(pop: 2,350)II: Very weakKabupaten Kupang, East Nusa TenggaraIndonesia204 km (127 mi)E of epicenterPante Makasar(pop: 4,730)II: Very weakOecusseEast Timor206 km (128 mi)SE of epicenterKupang(pop: 442,800)II: Very weakEast Nusa TenggaraIndonesia224 km (139 mi)SE of epicenterKefamenanu(pop: 48,200)II: Very weakKabupaten Timor Tengah Utara, East Nusa TenggaraIndonesia230 km (143 mi)SE of epicenterSoe(pop: 40,200)II: Very weakKabupaten Timor Tengah Selatan, East Nusa TenggaraIndonesia238 km (148 mi)W of epicenterRuteng(pop: 41,500)I: Not feltKabupaten Manggarai, East Nusa TenggaraIndonesia242 km (150 mi)S of epicenterBaa(pop: 1,260)I: Not feltKabupaten Rote Ndao, East Nusa TenggaraIndonesia255 km (159 mi)E of epicenterAtambua(pop: 82,200)I: Not feltKabupaten Belu, East Nusa TenggaraIndonesia283 km (176 mi)E of epicenterMaubara(pop: 16,300)I: Not feltLiquicaEast Timor285 km (177 mi)W of epicenterKondas(pop: 500)I: Not feltKabupaten Manggarai, East Nusa TenggaraIndonesia286 km (177 mi)SW of epicenterWaingapu(pop: 35,900)I: Not feltKabupaten Sumba Timur, East Nusa TenggaraIndonesia288 km (179 mi)E of epicenterMaliana(pop: 22,000)I: Not feltBobonaroEast Timor298 km (185 mi)E of epicenterLikisa(pop: 19,000)I: Not feltBazartete, LiquicaEast Timor300 km (186 mi)E of epicenterSuai(pop: 21,500)I: Not feltKovalimaEast Timor302 km (188 mi)W of epicenterLabuan Bajo(pop: 188,700)I: Not feltKabupaten Manggarai Barat, East Nusa TenggaraIndonesia309 km (192 mi)E of epicenterGleno(pop: 8,130)I: Not feltErmera Villa, ErmeraEast Timor319 km (199 mi)E of epicenterAinaro(pop: 12,000)I: Not feltAinaroEast TimorNotes:(*) 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 GMT2025-07-31EpicenterAgency4.3108 km67 mi04:56:04Flores Region, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.3108 km67 mi04:56:04FLORES REGION, INDONESIA0 km (0 mi) epicenter difference with BMKGEMSC (European-Mediterranean Seismological Centre)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 (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 31, 2025 12:56 pm (Makassar)35 minutes ago4.3108 km0 km - This quake46 km E of Maumere, Kabupaten Sikka, East Nusa Tenggara, 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 95 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 6 or higher: 0.13 quakes per year (or 1 quake every 7.8 years)Mag. 5 or higher: 1.84 quakes per yearMag. 4 or higher: 15.4 quakes per yearMag. 3 or higher: 58 quakes per year (or 4.8 quakes per month)Mag. 2 or higher: 91 quakes per year (or 7.6 quakes per month)Mag. 1 or higher: 96 quakes per year (or 8 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 4 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 20 weeks after a magnitude 4.7 earthquake had hit on Monday, Mar 10, 2025, at 07:49 am local time (Asia/Makassar GMT +8) in 53 km (33 mi) distance to the east:Mag. 4.7 earthquake Kabupaten Flores Timur - 99 km east of Maumere, Indonesia - Mar 10, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 7.3. It had occurred 4 years earlier, on Tuesday, Dec 14, 2021, at 11:20 am (GMT +8 local time) in Banda Sea, Indonesia:Mag. 7.3 earthquake Banda Sea - 113 km north of Maumere, Indonesia - Dec 14, 2021 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.9. It had occurred 29 years ago earlier, on Monday, Jun 17, 1996, at 07:22 pm (GMT +8 local time) in Provinsi Sulawesi Selatan, Indonesia:Mag. 7.9 earthquake Banda Sea - 149 km north of Pulau Besar Island, Indonesia - Jun 17, 1996 - 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 29, 08:38 pm (GMT +8)4.149 km84 km (52 mi) to the SESavu Sea, 76 km south of Pulau Solor Island, East Nusa Tenggara, IndonesiaInfoMar 10, 07:49 am (Makassar)4.7174 km53 km (33 mi) to the EKabupaten Flores Timur, 99 km east of Maumere, IndonesiaInfoFeb 18, 11:34 pm (Universal Time)4.3176 km20 km (13 mi) to the SE 62 km E of Maumere, IndonesiaInfoJan 11, 09:46 pm (Makassar)4.571 km51 km (32 mi) to the SW Flores Region, IndonesiaInfoDec 11, 2024 07:28 pm (Makassar)4.0132 km9.2 km (5.7 mi) to the N Flores Region, IndonesiaInfoDec 3, 2024 01:49 pm (Makassar)4.4190 km52 km (32 mi) to the NEKabupaten Flores Timur, 97 km east of Maumere, IndonesiaInfoNov 20, 2024 04:50 am (GMT +8)4.882 km90 km (56 mi) to the SWSavu Sea, 40 km southeast of Ende, Kabupaten Ende, East Nusa Tenggara, IndonesiaInfoDec 14, 2021 11:20 am (GMT +8)7.314 km118 km (74 mi) to the NWBanda Sea, 113 km north of Maumere, Indonesia 13 reportsInfoDec 8, 2021 12:26 am (GMT +8)5.2268 km98 km (61 mi) to the NEBanda Sea, 130 km northeast of Maumere, Indonesia 1 reportInfoAug 5, 2021 01:06 pm (Makassar)5.5496 km97 km (60 mi) to the NBanda Sea, 117 km northeast of Maumere, IndonesiaInfoDec 31, 2020 10:18 am (Universal Time)5.3124 km44 km (27 mi) to the SWnear Magnitude 5.3, Near of UjungpandangInfoJun 17, 2019 01:43 pm (Makassar)5.5109 km51 km (32 mi) to the SESavu Sea, 92 km east of Maumere, Kabupaten Sikka, East Nusa Tenggara, Indonesia 8 reportsInfoFeb 5, 2018 03:55 am (GMT +8)5.1138 km63 km (39 mi) to the S63 km SSE of Maumere, IndonesiaInfoOct 19, 2017 09:20 am (Makassar)5.1210 km60 km (37 mi) to the N Flores Region, IndonesiaInfoJun 28, 2011 12:47 am (Makassar)5.5120 km41 km (26 mi) to the SW 44 km SE of Maumere, IndonesiaInfoAug 2, 2009 06:00 am (GMT +8)5.3113 km90 km (56 mi) to the SE 78 km NW of Naisano Dua, IndonesiaInfoMay 7, 2008 07:27 am (GMT +8)5.4212 km99 km (61 mi) to the NEBanda Sea, 69 km north of Pulau Solor Island, East Nusa Tenggara, IndonesiaInfoDec 4, 2007 11:48 pm (Makassar)5.1133 km29 km (18 mi) to the W 20 km east of Maumere, Kabupaten Sikka, East Nusa Tenggara, IndonesiaInfoJan 15, 2006 07:58 pm (GMT +8)6.1265 km85 km (53 mi) to the N 97 km NNE of Maumere, IndonesiaInfoAug 2, 2005 07:32 pm (Makassar)6.033 km20 km (13 mi) to the NEKabupaten Flores Timur, 64 km east of Maumere, IndonesiaInfoNov 12, 2004 05:26 am (Makassar)7.510 km251 km (156 mi) to the EBanda Sea, 20 km northeast of Alor Island, East Nusa Tenggara, IndonesiaInfoApr 23, 2004 09:50 am (GMT +8)6.766 km89 km (55 mi) to the S 105 km WNW of Naisano Dua, IndonesiaInfoSep 27, 2002 09:40 am (Makassar)5.142 km71 km (44 mi) to the NWFlores Sea, 38 km northwest of Maumere, IndonesiaInfoAug 2, 2001 04:45 pm (Makassar)5.133 km91 km (57 mi) to the SW 59 km SE of Ende, IndonesiaInfoJun 17, 1996 07:22 pm (GMT +8)7.9587 km162 km (100 mi) to the NBanda Sea, Provinsi Sulawesi Selatan, 149 km north of Pulau Besar Island, IndonesiaInfoJun 17, 1995 09:37 am (Makassar)5.638 km56 km (35 mi) to the NE 96 km ENE of Maumere, IndonesiaInfoMar 2, 1993 08:23 am (Makassar)5.915 km49 km (30 mi) to the NWFlores Sea, 20 km northwest of Pulau Besar Island, East Nusa Tenggara, IndonesiaInfoDec 12, 1992 02:38 pm (Makassar)6.121 km78 km (48 mi) to the WKabupaten Ende, 33 km west of Maumere, IndonesiaInfoDec 12, 1992 01:43 pm (Makassar)5.721 km70 km (43 mi) to the W 26 km northwest of Maumere, Kabupaten Sikka, East Nusa Tenggara, IndonesiaInfoDec 12, 1992 01:38 pm (Makassar)6.033 km19 km (12 mi) to the NW Flores Region, IndonesiaInfoDec 12, 1992 01:29 pm (Makassar)7.828 km82 km (51 mi) to the WFlores Sea, 48 km northeast of Ende, IndonesiaInfoOct 24, 1992 05:24 am (Makassar)6.233 km98 km (61 mi) to the S 101 km SSE of Maumere, IndonesiaInfoMay 25, 1990 04:09 am (Makassar)7.1589 km285 km (177 mi) to the NWFlores Sea, Provinsi Sulawesi Selatan, 136 km north of Labuan Bajo, IndonesiaInfoDec 25, 1982 08:28 pm (Makassar)5.933 km54 km (33 mi) to the NE 99 km east of Maumere, Kabupaten Sikka, East Nusa Tenggara, IndonesiaInfoSep 12, 1974 03:16 am (Makassar)5.833 km80 km (50 mi) to the W 41 km NW of Maumere, IndonesiaInfoJul 14, 1974 05:37 pm (Makassar)5.8123 km17 km (10.5 mi) to the SW Flores region, IndonesiaInfoJun 29, 1959 03:43 am (GMT +8)6.060 km75 km (47 mi) to the SSavu Sea, 78 km southeast of Maumere, IndonesiaInfoMar 22, 1944 08:43 am (Makassar)7.50 km96 km (60 mi) to the EKabupaten Lembata, 186 km north of Kupang, IndonesiaInfoNov 7, 1942 07:32 am (Universal Time)6.180 km53 km (33 mi) to the SE 91 km ESE of Maumere, IndonesiaInfoOct 20, 1938 02:19 am (Universal Time)7.166 km46 km (29 mi) to the SSavu Sea, 70 km southeast of Maumere, IndonesiaInfoMar 3, 1927 01:05 am (Universal Time)7.015 km224 km (139 mi) to the N Flores Sea (Indonesia)InfoOct 16, 1918 08:04 pm (Universal Time)6.435 km99 km (61 mi) to the SESavu Sea, 75 km south of Pulau Kawula Island, East Nusa Tenggara, IndonesiaInfoAug 6, 1914 04:10 am (Universal Time)7.0600 km291 km (181 mi) to the N SulawesiInfoMap 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]