Moderate mag. 4.1 earthquake - Sunda Strait, Indonesia, on Saturday, Apr 4, 2026, at 05:21 am (Universal Time)

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Moderate magnitude 4.1 earthquake at 16 km depth4 Apr 05:26 UTC: First to report: RaspberryShake after 5 minutes.4 Apr 05:26: Now using data updates from BMKGI didn't feel itI felt this quakeEarthquake detailsDate & timeApr 4, 2026 05:21:18 UTC - Local time at epicenterSaturday, Apr 4, 2026, at 12:21 pm (GMT +7)Statusconfirmed (manually revised)Magnitude4.1Depth16 kmEpicenter latitude / longitude6.02°S / 104.23°ELampung, IndonesiaSeismic antipode6.02°N / 75.77°WColombiaShaking intensityIV Light shaking near epicenterFelt1 reportPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoTanggamus (82 km / 51 mi)Weather at epicenter at time of quakeOvercast Clouds 28.5°C (83 F), humidity: 73%, wind: 3 m/s (5 kts) from ESEEstimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | equivalent to ONE quake of magnitude 4.1 | about seismic energy7 minutes ago reported feltApr 4, 2026 05:21 GMT / Apr 4, 2026 12:21 pm (GMT +7)Lat / Lng: -6.02 / 104.23: Sunda Strait, IndonesiaSource: BMKGOther sources: RaspberryShake: 4.1 / 16 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-22873612',-6.02000,104.23000,'7 minutes ago: Mag. 4.1, Sunda Strait, 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+="&notFelt=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 Bandar Lampung, a city of 1.2 million people in Indonesia, in 132 km (82 mi) distance northeast of the epicenter. People likely experienced very weak shaking there. In the capital of  Indonesia, Jakarta, 290 km (180 mi) away from the epicenter, the earthquake could not be felt.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry132 km (82 mi)NE of epicenterBandar Lampung(pop: 1,166,100)II: Very weakLampungIndonesia151 km (94 mi)NE of epicenterKotabumi(pop: 42,400)II: Very weakKabupaten Lampung Utara, LampungIndonesia156 km (97 mi)NE of epicenterMetro(pop: 178,400)II: Very weakLampungIndonesia168 km (104 mi)NE of epicenterTerbanggi Besar(pop: 52,600)II: Very weakKabupaten Lampung Tengah, LampungIndonesia181 km (113 mi)E of epicenterLabuan(pop: 33,600)II: Very weakKabupaten Pandeglang, BantenIndonesia202 km (125 mi)E of epicenterCilegon(pop: 450,300)II: Very weakBantenIndonesia210 km (131 mi)E of epicenterPandeglang(pop: 92,300)I: Not feltBantenIndonesia210 km (131 mi)N of epicenterBaturaja(pop: 134,800)I: Not feltKabupaten Ogan Komering Ulu, Sumatera SelatanIndonesia213 km (132 mi)E of epicenterSerang(pop: 692,100)I: Not feltBantenIndonesia226 km (141 mi)E of epicenterRangkasbitung(pop: 137,000)I: Not feltKabupaten Lebak, BantenIndonesia236 km (147 mi)N of epicenterTanjungagung(pop: 53,100)I: Not feltKabupaten Muara Enim, Sumatera SelatanIndonesia238 km (148 mi)E of epicenterKresek(pop: 110,200)I: Not feltJawa BaratIndonesia247 km (154 mi)NW of epicenterPagar Alam(pop: 70,400)I: Not feltLahat Regency, Sumatera SelatanIndonesia253 km (157 mi)E of epicenterCikupa(pop: 174,000)I: Not feltJawa BaratIndonesia255 km (158 mi)E of epicenterPasarkemis(pop: 273,700)I: Not feltJawa BaratIndonesia259 km (161 mi)E of epicenterCurug(pop: 191,400)I: Not feltKabupaten Tangerang, BantenIndonesia260 km (161 mi)E of epicenterSepatan(pop: 118,400)I: Not feltJawa BaratIndonesia260 km (162 mi)N of epicenterLahat(pop: 65,900)I: Not feltSumatera SelatanIndonesia266 km (165 mi)E of epicenterTangerang(pop: 1,912,700)I: Not feltBantenIndonesia266 km (166 mi)E of epicenterTeluknaga(pop: 128,300)I: Not feltJawa BaratIndonesia271 km (169 mi)E of epicenterSerpong(pop: 80,200)I: Not feltJawa BaratIndonesia274 km (170 mi)E of epicenterCiputat(pop: 207,900)I: Not feltJawa BaratIndonesia277 km (172 mi)E of epicenterSouth Tangerang(pop: 1,404,800)I: Not feltBantenIndonesia278 km (173 mi)E of epicenterPelabuhanratu(pop: 109,500)I: Not feltKabupaten Sukabumi, Jawa BaratIndonesia280 km (174 mi)E of epicenterCiampea(pop: 207,200)I: Not feltBogor Regency, Jawa BaratIndonesia280 km (174 mi)E of epicenterPamulang(pop: 174,600)I: Not feltBogor Regency, Jawa BaratIndonesia280 km (174 mi)E of epicenterParung(pop: 123,100)I: Not feltBogor Regency, Jawa BaratIndonesia285 km (177 mi)E of epicenterSawangan(pop: 165,600)I: Not feltKota Depok, Jawa BaratIndonesia288 km (179 mi)N of epicenterPrabumulih(pop: 103,500)I: Not feltSumatera SelatanIndonesia289 km (180 mi)E of epicenterDepok(pop: 2,145,400)I: Not feltJawa BaratIndonesia290 km (180 mi)E of epicenterJakarta(pop: 8,540,100)I: Not feltDaerah Khusus Ibukota JakartaIndonesia290 km (180 mi)E of epicenterBogor(pop: 1,127,400)I: Not feltJawa BaratIndonesia295 km (183 mi)E of epicenterCicurug(pop: 89,000)I: Not feltKabupaten Sukabumi, Jawa BaratIndonesia295 km (183 mi)E of epicenterCibinong(pop: 363,400)I: Not feltBogor Regency, Jawa BaratIndonesia296 km (184 mi)E of epicenterCaringin(pop: 91,800)I: Not feltBogor Regency, Jawa BaratIndonesia298 km (185 mi)E of epicenterCiteureup(pop: 214,700)I: Not feltBogor Regency, Jawa BaratIndonesia305 km (189 mi)E of epicenterCileungsir(pop: 288,300)I: Not feltBogor Regency, Jawa BaratIndonesia306 km (190 mi)E of epicenterBekasi(pop: 2,564,900)I: Not feltJawa BaratIndonesia314 km (195 mi)E of epicenterSukabumi(pop: 360,600)I: Not feltJawa BaratIndonesia329 km (205 mi)NW of epicenterBengkulu(pop: 373,600)I: Not feltBengkuluIndonesiaNotes:(*) 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. 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.Translate59.4 km N of epicenter [Map] / Light shaking (MMI IV) (reported through our app)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 (*)IV: Light shaking159–59 km (37–37 mi)59 km (37 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 GMT2026-04-4EpicenterAgency4.116 km9.9 mi05:21:18Sunda Strait, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.116 km9.9 mi05:21:18Sunda Strait, 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 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)Apr 4, 2026 12:21 pm (GMT +7)7 minutes ago4.116 km0 km - This quakeSunda Strait, 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 163 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.12 quakes per year (or 1 quake every 8.3 years)Mag. 5 or higher: 3.6 quakes per yearMag. 4 or higher: 25.3 quakes per yearMag. 3 or higher: 95 quakes per year (or 7.9 quakes per month)Mag. 2 or higher: 153 quakes per year (or 12.8 quakes per month)Mag. 1 or higher: 163 quakes per year (or 13.6 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 15 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 earthquake