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The quake had a very shallow depth of 9 km (5.6 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Indonesia | Quakes in Papua New Guinea | Provinsi Papua | Highland Papua | Central PapuaHint: Click on the image to see different maps of this quake!Moderate magnitude 4.0 earthquake at 9 km depth30 Jul 13:31 UTC: First to report: BMKG after 9 minutes.30 Jul 13:36: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeJul 30, 2026 13:21:53 UTC - Local time at epicenterThursday, Jul 30, 2026, at 10:21 pm (GMT +9)StatusconfirmedMagnitude4.00Depth9 kmEpicenter latitude / longitude2.4°S / 138.83°EKabupaten Sarmi, South Papua, IndonesiaSeismic antipode2.4°N / 41.17°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Weather at epicenter at time of quakeOvercast Clouds 23.2°C (74 F), humidity: 99%, wind: 1 m/s (2 kts) from SSEEstimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | equivalent to ONE quake of magnitude 4.0 | about seismic energy19 minutes agoJul 30, 2026 13:21 GMT / Jul 30, 2026 10:21 pm (GMT +9)Lat / Lng: -2.4 / 138.83: Papua, IndonesiaSource: EMSCOther sources: RaspberryShake: 4.0 / 9 km, BMKG: 4.0 / 9 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23229377',-2.40000,138.83000,'19 minutes ago: Mag. 4.0, Papua, 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 Sarmi, a town with 14,000 inhabitants in Indonesia, in 61 km (38 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(*)RegionCountry61 km (38 mi)N of epicenterSarmi(pop: 14,100)II: Very weakProvinsi PapuaIndonesia143 km (89 mi)S of epicenterKobakma(pop: 13,100)II: Very weakKabupaten Mamberamo Tengah, Highland PapuaIndonesia150 km (93 mi)S of epicenterKarubaga(pop: 6,700)II: Very weakKabupaten Tolikara, Highland PapuaIndonesia174 km (108 mi)SW of epicenterMulia(pop: 35,900)II: Very weakKabupaten Puncak Jaya, Central PapuaIndonesia175 km (108 mi)S of epicenterTiom(pop: 21,300)II: Very weakKabupaten Lanny Jaya, Highland PapuaIndonesia180 km (112 mi)SE of epicenterElelim(pop: 5,950)II: Very weakKabupaten Yalimo, Highland PapuaIndonesia188 km (117 mi)E of epicenterSentani(pop: 44,800)I: Not feltKabupaten Jayapura, Provinsi PapuaIndonesia189 km (117 mi)S of epicenterWamena(pop: 41,800)I: Not feltKabupaten Jayawijaya, Highland PapuaIndonesia201 km (125 mi)E of epicenterAbepura(pop: 62,200)I: Not feltKota Jayapura, Provinsi PapuaIndonesia210 km (131 mi)E of epicenterJayapura(pop: 404,000)I: Not feltProvinsi PapuaIndonesia250 km (155 mi)S of epicenterKenyam(pop: 6,390)I: Not feltKabupaten Nduga, Highland PapuaIndonesia276 km (172 mi)E of epicenterVanimo(pop: 11,200)I: Not feltWest Sepik ProvincePapua New Guinea283 km (176 mi)SW of epicenterBugalaga(pop: 3,580)I: Not feltKabupaten Intan Jaya, Central PapuaIndonesia293 km (182 mi)W of epicenterSerui(pop: 13,600)I: Not feltKabupaten Kepulauan Yapen, Provinsi PapuaIndonesia334 km (208 mi)NW of epicenterBiak(pop: 41,700)I: Not feltProvinsi PapuaIndonesia343 km (213 mi)SW of epicenterTimika(pop: 142,900)I: Not feltKabupaten Mimika, Central PapuaIndonesia701 km (435 mi)S of epicenterMerauke(pop: 102,400): Not feltSouth 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 GMT2026-07-30EpicenterAgency4.09 km5.6 mi13:21:53PAPUA, INDONESIAEMSC (European-Mediterranean Seismological Centre)4.09 km5.6 mi13:21:53West Papua, Indonesia0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.09 km5.6 mi13:21:53West Papua, Indonesia0 km (0 mi) epicenter difference with EMSCBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: Jayapura, Indonesia (JAY/PS network) | Distance from quake: 208 km / 130 mi | Show on map | Station InfoSeismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Nhulunbuy High School (AUNHS/S1 network) | Distance from quake: 1111 km / 691 mi | Show on map | Station InfoShow moreAftershocks 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 30, 2026 10:21 pm (GMT +9)19 minutes ago4.09 km0 km - This quakePapua, 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 219 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25 years)Mag. 6 or higher: 0.36 quakes per year (or 1 quake every 2.8 years)Mag. 5 or higher: 6.2 quakes per yearMag. 4 or higher: 69 quakes per year (or 5.7 quakes per month)Mag. 3 or higher: 183 quakes per year (or 15.2 quakes per month)Mag. 2 or higher: 217 quakes per year (or 18.1 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 5 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 25 to 30 years.Number of quakes per yearPrevious quakes in the same area of this earthquake