Moderate magnitude 4.1 earthquake at 20 km depth20 Apr 19:02 UTC: First to report: RaspberryShake after 8 minutes.20 Apr 19:02: Now using data updates from BMKG20 Apr 19:03: Magnitude recalculated from 3.9 to 4.1. Hypocenter depth recalculated from 22.00 to 20.00 km (from 13.7 to 12.4 mi). Epicenter location corrected by 13 km (8.1 mi) towards NNE.I didn't feel itI felt this quakeEarthquake detailsDate & timeApr 20, 2026 18:54:14 UTC - Local time at epicenterMonday, Apr 20, 2026, at 06:54 pm (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.1Depth20 kmEpicenter latitude / longitude1.89°S / 139.24°ESarmi Regency, Provinsi Papua, IndonesiaSeismic antipode1.89°N / 40.76°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Weather at epicenter at time of quakeOvercast Clouds 26°C (79 F), humidity: 85%, wind: 2 m/s (4 kts) from SSEEstimated 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 energy9 minutes agoApr 20, 2026 18:54 GMT / Apr 20, 2026 06:54 pm (Universal Time)Lat / Lng: -1.89 / 139.24: Near North Coast of West PapuaSource: BMKGOther sources: RaspberryShake: 3.9 / 22 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22928606',-1.89000,139.24000,'9 minutes ago: Mag. 4.1, Near North Coast of West Papua',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 Sarmi, a town with 14,000 inhabitants in Indonesia, in 55 km (34 mi) distance west of the epicenter. People likely experienced weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry55 km (34 mi)W of epicenterSarmi(pop: 14,100)III: WeakProvinsi PapuaIndonesia160 km (100 mi)SE of epicenterSentani(pop: 44,800)II: Very weakKabupaten Jayapura, Provinsi PapuaIndonesia173 km (108 mi)SE of epicenterAbepura(pop: 62,200)II: Very weakKota Jayapura, Provinsi PapuaIndonesia179 km (111 mi)SE of epicenterJayapura(pop: 404,000)II: Very weakProvinsi PapuaIndonesia198 km (123 mi)S of epicenterKobakma(pop: 13,100)II: Very weakKabupaten Mamberamo Tengah, Highland PapuaIndonesia214 km (133 mi)S of epicenterElelim(pop: 5,950)I: Not feltKabupaten Yalimo, Highland PapuaIndonesia219 km (136 mi)SW of epicenterKarubaga(pop: 6,700)I: Not feltKabupaten Tolikara, Highland PapuaIndonesia242 km (151 mi)S of epicenterTiom(pop: 21,300)I: Not feltKabupaten Lanny Jaya, Highland PapuaIndonesia246 km (153 mi)E of epicenterVanimo(pop: 11,200)I: Not feltWest Sepik ProvincePapua New Guinea246 km (153 mi)SW of epicenterMulia(pop: 35,900)I: Not feltKabupaten Puncak Jaya, Central PapuaIndonesia247 km (154 mi)S of epicenterWamena(pop: 41,800)I: Not feltKabupaten Jayawijaya, Highland PapuaIndonesia316 km (196 mi)S of epicenterKenyam(pop: 6,390)I: Not feltKabupaten Nduga, Highland PapuaIndonesia351 km (218 mi)SW of epicenterBugalaga(pop: 3,580)I: Not feltKabupaten Intan Jaya, Central PapuaIndonesia416 km (258 mi)SW of epicenterTimika(pop: 142,900)I: Not feltKabupaten Mimika, Central PapuaIndonesiaNotes:(*) 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 GMT2026-04-20EpicenterAgency4.120 km12 mi18:54:14Near North Coast of West PapuaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)3.922 km14 mi18:54:14Near North Coast of West Papua13 km (8.1 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 20, 2026 06:54 pm (Universal Time)9 minutes ago4.120 km0 km - This quakeSouth Pacific Ocean, 55 km E of Sarmi, 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 162 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.26 quakes per year (or 1 quake every 3.9 years)Mag. 5 or higher: 3.5 quakes per yearMag. 4 or higher: 41 quakes per year (or 3.4 quakes per month)Mag. 3 or higher: 126 quakes per year (or 10.5 quakes per month)Mag. 2 or higher: 162 quakes per year (or 13.5 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 33 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 1 to 5 years.Number of quakes per yearPrevious quakes in the same area of this earthquake