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The quake had a very shallow depth of 15 km (9 mi) and was felt by many near the epicenter. The shallow depth of the quake caused it to be felt more strongly near the epicenter than a deeper quake of similar magnitude would.Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Indonesia | Provinsi Jawa Tengah | West Java | Daerah Istimewa YogyakartaHint: Click on the image to see different maps of this quake!Strong magnitude 5.3 earthquake at 15 km depth4 Sep 05:07 UTC: First to report: VolcanoDiscovery after 3 minutes.4 Sep 05:09: Now using data updates from BMKG4 Sep 05:11: Epicenter location corrected by 5.6 km (3.5 mi) towards WSW.4 Sep 05:13: Magnitude recalculated from 5.4 to 5.3. Hypocenter depth recalculated from 10.00 to 15.00 km (from 6.2 to 9.3 mi). Epicenter location corrected by 8.1 km (5 mi) towards NNE.Update Fri, 4 Sep 2026, 05:12Significant magnitude 5.4 earthquake 78 km south of Cilacap, IndonesiaJust 7 minutes ago, a 5.4-magnitude earthquake struck near Cilacap, Cilacap Regency, Provinsi Jawa Tengah, Indonesia. The tremor was recorded around noon on Friday, September 4th, 2026, at 12:04 pm local time, at a shallow depth of 10. km below the surface.The event was filed by Indonesia's Meteorology, Climatology, and Geophysical Agency, the first seismological agency to report it.Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.Weak shaking might have been felt in Cilacap (pop. 257,000) located 78 km from the epicenter, Kroya (pop. 23,300) 94 km away, Gombong (pop. 50,200) 109 km away, Sokaraja (pop. 66,500) 114 km away, and Purwokerto (pop. 230,200) 116 km away.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.If you were or still are in this area during the quake help others with your feedback and report it here.Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOSI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 4, 2026 05:05:00 UTC - Local time at epicenterFriday, Sep 4, 2026, at 05:05 am (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude5.3Depth15 kmEpicenter latitude / longitude8.36°S / 108.99°EProvinsi Jawa Tengah, IndonesiaSeismic antipode8.36°N / 71.01°WVenezuelaShaking intensityV Moderate shaking near epicenterFelt6 reportsPrimary data sourceBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)Nearest volcanoSlamet (127 km / 79 mi)Weather at epicenter at time of quakeBroken Clouds 30.8°C (87 F), humidity: 54%, wind: 6 m/s (13 kts) from SSEEstimated seismic energy released5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 tons of TNT) | equivalent to ONE quake of magnitude 5.3 | about seismic energy9 minutes ago reported feltSep 4, 2026 05:05 GMT / Sep 4, 2026 05:05 am (Universal Time)Lat / Lng: -8.36 / 108.99: Java, IndonesiaSource: BMKGOther sources: GFZ: 5.0 / 82 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23335657',-8.36000,108.99000,'9 minutes ago: Mag. 5.3, Java, Indonesia',html,'quakes-7-24.png',30,30,15,15,126]); 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 Cilacap, a city with more than 260,000 inhabitants in Indonesia, in 71 km (44 mi) distance north of the epicenter. People likely experienced light shaking there. In the capital of Indonesia, Jakarta, 336 km (209 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry71 km (44 mi)N of epicenterCilacap(pop: 257,000)IV: LightProvinsi Jawa TengahIndonesia86 km (53 mi)N of epicenterKroya(pop: 23,300)IV: LightKabupaten Cilacap, Provinsi Jawa TengahIndonesia94 km (58 mi)N of epicenterWangon(pop: 35,500)IV: LightKabupaten Banyumas, Provinsi Jawa TengahIndonesia100 km (62 mi)N of epicenterSidareja(pop: 30,300)IV: LightKabupaten Cilacap, Provinsi Jawa TengahIndonesia100 km (62 mi)N of epicenterBanyumas(pop: 48,400)IV: LightProvinsi Jawa TengahIndonesia102 km (63 mi)NE of epicenterGombong(pop: 50,200)IV: LightKabupaten Kebumen, Provinsi Jawa TengahIndonesia106 km (66 mi)N of epicenterSokaraja(pop: 66,500)III: WeakKabupaten Banyumas, Provinsi Jawa TengahIndonesia108 km (67 mi)N of epicenterPurwokerto(pop: 230,200)III: WeakKabupaten Banyumas, Provinsi Jawa TengahIndonesia116 km (72 mi)N of epicenterPurbalingga(pop: 56,900)III: WeakProvinsi Jawa TengahIndonesia121 km (75 mi)N of epicenterBaturaden(pop: 42,400)III: WeakKabupaten Banyumas, Provinsi Jawa TengahIndonesia121 km (75 mi)N of epicenterMajenang(pop: 38,900)III: WeakKabupaten Cilacap, Provinsi Jawa TengahIndonesia135 km (84 mi)NW of epicenterCiamis(pop: 109,800)III: WeakWest JavaIndonesia139 km (86 mi)NW of epicenterKawalu(pop: 50,500)III: WeakKota Tasikmalaya, West JavaIndonesia143 km (89 mi)NW of epicenterTasikmalaya(pop: 741,800)III: WeakWest JavaIndonesia150 km (93 mi)NE of epicenterWonosobo(pop: 93,000)III: WeakProvinsi Jawa TengahIndonesia154 km (96 mi)N of epicenterSlawi(pop: 61,200)III: WeakKabupaten Tegal, Provinsi Jawa TengahIndonesia157 km (97 mi)E of epicenterBantul(pop: 64,400)III: WeakDaerah Istimewa YogyakartaIndonesia159 km (99 mi)E of epicenterKasihan(pop: 86,200)III: WeakKabupaten Bantul, Daerah Istimewa YogyakartaIndonesia159 km (99 mi)N of epicenterAdiwerna(pop: 134,200)III: WeakKabupaten Tegal, Provinsi Jawa TengahIndonesia160 km (99 mi)N of epicenterTarub(pop: 75,700)III: WeakKabupaten Tegal, Provinsi Jawa TengahIndonesia160 km (99 mi)NE of epicenterGamping Lor(pop: 66,100)III: WeakKabupaten Sleman, Daerah Istimewa YogyakartaIndonesia160 km (99 mi)E of epicenterSewon(pop: 73,600)III: WeakKabupaten Bantul, Daerah Istimewa YogyakartaIndonesia163 km (101 mi)N of epicenterDukuhturi(pop: 98,100)III: WeakKabupaten Tegal, Provinsi Jawa TengahIndonesia164 km (102 mi)E of epicenterYogyakarta(pop: 373,600)III: WeakDaerah Istimewa YogyakartaIndonesia164 km (102 mi)N of epicenterKuningan(pop: 111,700)III: WeakWest JavaIndonesia167 km (104 mi)N of epicenterTegal(pop: 282,800)III: WeakProvinsi Jawa TengahIndonesia168 km (104 mi)NE of epicenterMagelang(pop: 121,500)III: WeakProvinsi Jawa TengahIndonesia169 km (105 mi)N of epicenterPemalang(pop: 184,100)III: WeakProvinsi Jawa TengahIndonesia171 km (106 mi)NE of epicenterKedungwuni(pop: 117,200)III: WeakKabupaten Pekalongan, Provinsi Jawa TengahIndonesia171 km (106 mi)NW of epicenterGarut(pop: 131,800)III: WeakWest JavaIndonesia172 km (107 mi)NE of epicenterDepok(pop: 104,500)III: WeakKabupaten Sleman, Daerah Istimewa YogyakartaIndonesia178 km (110 mi)N of epicenterAstanajapura(pop: 148,000)III: WeakKabupaten Cirebon, West JavaIndonesia180 km (112 mi)NE of epicenterPekalongan(pop: 317,500)III: WeakProvinsi Jawa TengahIndonesia187 km (116 mi)N of epicenterSumber(pop: 96,700)III: WeakKabupaten Cirebon, West JavaIndonesia190 km (118 mi)N of epicenterCirebon(pop: 342,000)III: WeakWest JavaIndonesia191 km (119 mi)N of epicenterWeru(pop: 139,000)III: WeakKabupaten Cirebon, West JavaIndonesia219 km (136 mi)NE of epicenterSemarang(pop: 1,653,500)III: WeakProvinsi Jawa TengahIndonesia221 km (137 mi)NW of epicenterBandung(pop: 2,444,200)III: WeakWest JavaIndonesia323 km (201 mi)NW of epicenterBekasi(pop: 2,564,900)II: Very weakWest JavaIndonesia336 km (209 mi)NW of epicenterJakarta(pop: 8,540,100)II: Very weakDaerah Khusus Ibukota JakartaIndonesiaNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (8)The first report about ground shaking reached us after only 3 minutes, before other agencies reported it. So far, we have received 8 reports for this quake from Indonesia. Out of these, 6 people indicated they felt it. The quake was reported to have been felt in up to approx. 150–180 km (93–112 mi) distance.Most reports came from Depok (1 report), a city with more than 100,000 inhabitants in Daerah Istimewa Yogyakarta in 172 km (107 mi) distance northeast of the epicenter, Indonesia, Yogyakarta (1 report), a city with more than 370,000 inhabitants in 164 km (102 mi) distance east of the epicenter, and Melati (1 report) (167 km or 104 mi to the northeast). Further below is a list of places where most people reported 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.Translate223.1 km ENE of epicenter [Map] / not felt (reported through our app)106.9 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)Gumawang, kuwarasan (97.2 km NE of epicenter) [Map] / Light shaking (MMI IV)164.6 km ENE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)163.5 km ENE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)336.5 km E of epicenter [Map] / not felt (reported through our app)165.2 km ENE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)179.2 km ENE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsDepok, Daerah Istimewa Yogyakarta, Indonesia(Pop.: 104,527)172 km (107 mi)NE of epicenterIII: Weak shaking1Yogyakarta, Daerah Istimewa Yogyakarta, Indonesia(Pop.: 373,589)164 km (102 mi)E of epicenterIII: Weak shaking1Melati, Daerah Istimewa Yogyakarta, Indonesia(Pop.: 67,090)167 km (104 mi)NE of epicenterIV: Light shaking1Note: Only reports with latitude/longitude coordinate positions given (8 in total) could be used for statistics.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 (*)I: Not felt2223–336 km (139–209 mi)279 km (174 mi)III: Weak shaking3107–179 km (66–111 mi)150 km (93 mi)IV: Light shaking297–163 km (60–101 mi)130 km (81 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (8 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 GMT2026-09-4EpicenterAgency5.315 km9.3 mi05:05:00Java, IndonesiaBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)4.9882 km51 mi05:05:02.77Java, Indonesia17 km (10.8 mi) epicenter difference with BMKGGFZ (German Research Centre for Geosciences)"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}document.addEventListener("DOMContentLoaded", function () { var section = document.getElementById("seismogramSection"); if (!section) return; var images = section.querySelectorAll("img.waitBg"); if (!images.length) return; images.forEach(function(img, index){ img.addEventListener("error", function(){ // If the first image fails, hide the whole section. if (index === 0) { // Remove TOC entry var tocLink = document.querySelector('#toc .tocLink[data-href="seismogramSection"]'); if (tocLink) {tocLink.remove()} // Remove whole section section.remove(); } // Otherwise remove only this station. var plot = img.closest(".plotContainer"); if (!plot) return; var station = plot.previousElementSibling; var caption = plot.nextElementSibling; if (station) station.remove(); plot.remove(); if (caption) caption.remove(); // Remove empty "Show more" var more = document.getElementById("moreSeismograms"); if (more && !more.querySelector(".plotContainer")) { more.remove(); var btn = document.getElementById("moreSeismograms_1"); if (btn) btn.remove(); } // Hide section if nothing remains. if (!section.querySelector(".plotContainer")) { section.style.display = "none"; } }, { once: true }); });});]]>SeismogramsSeismic station: Kappang, Sulawesi, Indonesia (KAPI/II network) | Distance from quake: 1245 km / 774 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: 0.02-4.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: West Island, Cocos (Keeling) Islands (COCO/II network) | Distance from quake: 1396 km / 867 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 20 km2 (8 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 8 km (5 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 4, 2026 05:05 am (Universal Time)9 minutes ago - felt5.315 km0 km - This quakeIndian Ocean, 71 km S of Cilacap, IndonesiaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 56 years and our earthquake archive back to 1900, there are about 99 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.02 quakes per year (or 1 quake every 62.5 years)Mag. 6 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 5 or higher: 0.89 quakes per year (or 1 quake every 1.1 years)Mag. 4 or higher: 11.2 quakes per yearMag. 3 or higher: 48 quakes per year (or 4 quakes per month)Mag. 2 or higher: 99 quakes per year (or 8.3 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 2 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 60 to 65 years.Number of quakes per yearPrevious quakes in the same area of this earthquake