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The depth of the quake could not be determined, but is assumed to be shallow.The quake was not felt (or at least not reported so).Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in South Africa | Free State | North West | GautengHint: Click on the image to see different maps of this quake!Moderate magnitude 4.2 earthquake at unknown depth27 Aug 23:35 UTC: First to report: EMSC after 6 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 27, 2025 23:28:56 UTC - Local time at epicenterWednesday, Aug 27, 2025, at 11:28 pm (Universal Time GMT +0)Statuspreliminary (automatic detection)Magnitude4.2Depth10 kmEpicenter latitude / longitude27.714°S / 26.828°EFree State, South AfricaSeismic antipode27.714°N / 153.172°WShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | equivalent to ONE quake of magnitude 4.2 | about seismic energy6 minutes agoAug 27, 2025 23:28 GMT / Aug 27, 2025 11:28 pm (Universal Time)Lat / Lng: -27.714 / 26.828: South AfricaSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22108108',-27.71400,26.82800,'6 minutes ago: Mag. 4.2, South Africa',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 South AfricaNearby placesThe closest larger town where the quake might have been felt is Welkom, a city with more than 430,000 inhabitants in South Africa, in 31 km (19 mi) distance south of the epicenter. People likely experienced weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of South Africa, Pretoria, 257 km (160 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(*)RegionCountry15 km (10 mi)SW of epicenterKutloanong(pop: 95,000)IV: LightLejweleputswa District Municipality, Free StateSouth Africa19 km (12 mi)W of epicenterAllanridge(pop: 31,700)IV: LightLejweleputswa District Municipality, Free StateSouth Africa22 km (14 mi)SW of epicenterOdendaalsrus(pop: 76,400)III: WeakLejweleputswa District Municipality, Free StateSouth Africa31 km (19 mi)S of epicenterWelkom(pop: 431,900)III: WeakLejweleputswa District Municipality, Free StateSouth Africa35 km (22 mi)SE of epicenterHennenman(pop: 22,800)III: WeakLejweleputswa District Municipality, Free StateSouth Africa41 km (25 mi)E of epicenterKroonstad(pop: 117,200)III: WeakFezile Dabi District Municipality, Free StateSouth Africa42 km (26 mi)SE of epicenterPhomolong(pop: 24,600)III: WeakLejweleputswa District Municipality, Free StateSouth Africa42 km (26 mi)NW of epicenterBothaville(pop: 71,900)III: WeakLejweleputswa District Municipality, Free StateSouth Africa44 km (27 mi)S of epicenterVirginia(pop: 122,500)III: WeakLejweleputswa District Municipality, Free StateSouth Africa48 km (30 mi)W of epicenterWesselsbron(pop: 42,600)III: WeakLejweleputswa District Municipality, Free StateSouth Africa51 km (32 mi)SE of epicenterVentersburg(pop: 13,500)III: WeakLejweleputswa District Municipality, Free StateSouth Africa58 km (36 mi)N of epicenterViljoenskroon(pop: 55,000)III: WeakFezile Dabi District Municipality, Free StateSouth Africa77 km (48 mi)E of epicenterSteynsrus(pop: 10,900)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa79 km (49 mi)S of epicenterTheunissen(pop: 34,700)II: Very weakLejweleputswa District Municipality, Free StateSouth Africa79 km (49 mi)NW of epicenterLeeudoringstad(pop: 16,000)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa83 km (52 mi)N of epicenterOrkney(pop: 110,100)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa85 km (53 mi)E of epicenterEdenville(pop: 7,540)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa90 km (56 mi)NE of epicenterKoppies(pop: 16,500)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa91 km (57 mi)S of epicenterWinburg(pop: 16,900)II: Very weakLejweleputswa District Municipality, Free StateSouth Africa92 km (57 mi)W of epicenterHoopstad(pop: 19,200)II: Very weakLejweleputswa District Municipality, Free StateSouth Africa92 km (57 mi)SW of epicenterBultfontein(pop: 28,000)II: Very weakLejweleputswa District Municipality, Free StateSouth Africa93 km (58 mi)NW of epicenterMakwassie(pop: 16,000)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa95 km (59 mi)NE of epicenterVredefort(pop: 17,500)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa97 km (60 mi)N of epicenterStilfontein(pop: 93,100)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa97 km (60 mi)N of epicenterKlerksdorp(pop: 227,000)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa101 km (63 mi)NW of epicenterWolmaransstad(pop: 49,400)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa103 km (64 mi)SE of epicenterSenekal(pop: 39,600)II: Very weakThabo Mofutsanyana District Municipality, Free StateSouth Africa110 km (68 mi)NE of epicenterParys(pop: 71,300)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa114 km (71 mi)N of epicenterPotchefstroom(pop: 178,300)II: Very weakDr Kenneth Kaunda District Municipality, North WestSouth Africa123 km (76 mi)NE of epicenterHeilbron(pop: 32,800)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa140 km (87 mi)NE of epicenterSasolburg(pop: 135,800)II: Very weakFezile Dabi District Municipality, Free StateSouth Africa150 km (93 mi)NE of epicenterVanderbijlpark(pop: 246,800)II: Very weakSedibeng District Municipality, GautengSouth Africa156 km (97 mi)E of epicenterBethlehem(pop: 91,100)II: Very weakThabo Mofutsanyana District Municipality, Free StateSouth Africa159 km (99 mi)NE of epicenterVereeniging(pop: 474,700)II: Very weakSedibeng District Municipality, GautengSouth Africa161 km (100 mi)N of epicenterCarletonville(pop: 182,300)II: Very weakWest Rand District Municipality, GautengSouth Africa165 km (102 mi)SE of epicenterFicksburg(pop: 49,400)II: Very weakThabo Mofutsanyana District Municipality, Free StateSouth Africa166 km (103 mi)NE of epicenterEvaton(pop: 725,500)II: Very weakSedibeng District Municipality, GautengSouth Africa168 km (104 mi)S of epicenterBloemfontein(pop: 556,600)II: Very weakMangaung Metropolitan Municipality, Free StateSouth Africa168 km (104 mi)S of epicenterBloemfontein(pop: 556,600)II: Very weakMangaung Metropolitan Municipality, Free StateSouth Africa257 km (160 mi)NE of epicenterPretoria(pop: 2,112,700)I: Not feltCity of Tshwane Metropolitan Municipality, GautengSouth AfricaNotes:(*) 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 GMT2025-08-27EpicenterAgency4.210 km6.2 mi(*)23:28:56SOUTH AFRICAEMSC (European-Mediterranean Seismological Centre)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 2 km2 (1 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)Aug 27, 2025 11:28 pm (Universal Time)6 minutes ago4.210 km0 km - This quakeSouth AfricaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake6 minutes agoAug 27, 2025 23:28 GMT / Aug 27, 2025 11:28 pm (Universal Time)Lat / Lng: -27.714 / 26.828: South AfricaSource: EMSCDetail info | You felt it? - Report it!',4.2,42, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',-27.714,26.828,'6 minutes ago: Mag. 4.2, South Africa','Earthquake: Mag 4.2 / 10 km (6.2 mi) depth6 minutes agoAug 27, 2025 23:28 GMT / Aug 27, 2025 11:28 pm (Universal Time)Lat / Lng: -27.714 / 26.828: South AfricaSource: EMSCDetail info | You felt it? - Report it!','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (async function(){while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=22108108","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){d.getElementById("olderQuakesSection").remove();return};let table=d.getElementById("qTableOlder");table.innerHTML+=o.tableRows,qTableOlder.alternateBg(),d.getElementById("placeholder_largestQText").innerHTML=o.html,d.getElementById("sectionPreviousCWrap").style.display="",eval(o.js)}})})();]]>Support Us – Help Us Enhance Our Services!We’re passionate about delivering the latest volcano and earthquake data from around the globe — just for you. However, maintaining our website and free apps requires significant time, effort, and resources.Your support helps us expand our hardware and software capabilities and empowers our dedicated editorial team. Our mission is to provide uninterrupted, real-time updates whenever an earthquake strikes or a volcano erupts — and your donations make this possible. Every contribution, big or small, is deeply appreciated. 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