Moderate magnitude 4.1 earthquake at unknown depth28 Jul 14:34 UTC: First to report: BMKG after 7 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 28, 2025 14:27:02 UTC - Local time at epicenterMonday, Jul 28, 2025, at 02:27 pm (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.1Depth10 kmEpicenter latitude / longitude1.82°S / 133.08°EKabupaten Teluk Bintuni, Southwest Papua, IndonesiaSeismic antipode1.82°N / 46.92°WBrazilShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Estimated 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 agoJul 28, 2025 14:27 GMT / Jul 28, 2025 02:27 pm (Universal Time)Lat / Lng: -1.82 / 133.08: West Papua Region, IndonesiaSource: BMKGDetail info | You felt it? - Report it!';storedMarkers.push(['quake-21999748',-1.82000,133.08000,'7 minutes ago: Mag. 4.1, West Papua 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 Bintuni, a town with 25,000 inhabitants in Indonesia, in 59 km (37 mi) distance southeast 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(*)RegionCountry59 km (37 mi)SE of epicenterBintuni(pop: 24,700)III: WeakProvinsi Papua BaratIndonesia126 km (78 mi)W of epicenterTeminabuan(pop: 19,500)II: Very weakKabupaten Sorong Selatan, Southwest PapuaIndonesia126 km (78 mi)E of epicenterRansiki(pop: 16,200)II: Very weakKabupaten Manokwari Selatan, Provinsi Papua BaratIndonesia134 km (83 mi)NW of epicenterFef(pop: 966)II: Very weakKabupaten Tambrauw, Southwest PapuaIndonesia151 km (94 mi)SW of epicenterFakfak(pop: 18,900)II: Very weakProvinsi PapuaIndonesia153 km (95 mi)NE of epicenterManokwari(pop: 107,300)II: Very weakProvinsi Papua BaratIndonesia175 km (109 mi)NW of epicenterBikar(pop: 210)II: Very weakKabupaten Tambrauw, Southwest PapuaIndonesia190 km (118 mi)S of epicenterMas(pop: 320)II: Very weakIndonesia228 km (141 mi)NW of epicenterSorong(pop: 254,300)I: Not feltSouthwest PapuaIndonesia319 km (198 mi)SE of epicenterNabire(pop: 43,900)I: Not feltCentral PapuaIndonesia336 km (209 mi)NW of epicenterWaisai(pop: 22,500)I: Not feltKabupaten Raja Ampat, Southwest 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!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 GMT2025-07-28EpicenterAgency4.110 km6.2 mi(*)14:27:02West Papua Region, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)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 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)Jul 28, 2025 02:27 pm (Universal Time)7 minutes ago4.110 km0 km - This quakeKabupaten Teluk Bintuni, Southwest Papua, 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 34.8 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 5 or higher: 0.48 quakes per year (or 1 quake every 2.1 years)Mag. 4 or higher: 5.8 quakes per yearMag. 3 or higher: 22.3 quakes per yearMag. 2 or higher: 36.2 quakes per year (or 3 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 27 quakes above magnitude 5 since 1970, 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