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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 | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Chile | Quakes in Argentina | Region de Magallanes y Antartica Chilena | Tierra del Fuego Province | Santa Cruz ProvinceHint: Click on the image to see different maps of this quake!Moderate magnitude 4.9 earthquake at unknown depth29 Jul 05:18 UTC: First to report: CSN after 18 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 29, 2026 05:00:28 UTC - Local time at epicenterWednesday, Jul 29, 2026, at 02:00 am (GMT -3)Statuspreliminary (automatic detection)Magnitude4.9Depth10 kmEpicenter latitude / longitude56.879°S / 67.396°WChileSeismic antipode56.879°N / 112.604°ERussiaShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceCSN (National Seismological Center (Centro Sismológico Nacional))Weather at epicenter at time of quakeLight Snow 1.7°C (35 F), humidity: 74%, wind: 7 m/s (13 kts) from SWEstimated seismic energy released1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) | equivalent to ONE quake of magnitude 4.9 | about seismic energy33 minutes agoJul 29, 2026 05:00 GMT / Jul 29, 2026 02:00 am (GMT -3)Lat / Lng: -56.879 / -67.396: Chile: 217 km Al S De Puerto WilliamsSource: CSNDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23225624',-56.87900,-67.39600,'33 minutes ago: Mag. 4.9, Chile: 217 km Al S De Puerto Williams',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 ChileNearby placesThe closest larger town where the quake might have been felt is Puerto Williams, a town with 2,000 inhabitants in Chile, in 217 km (135 mi) distance north of the epicenter. People likely experienced very weak shaking there. In the capital of the Falkland Islands, Stanley, 845 km (525 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(*)RegionCountry217 km (135 mi)N of epicenterPuerto Williams(pop: 2,000)II: Very weakProvincia Antartica Chilena, Region de Magallanes y Antartica ChilenaChile237 km (147 mi)N of epicenterUshuaia(pop: 56,800)II: Very weakTierra del Fuego ProvinceArgentina264 km (164 mi)N of epicenterTolhuin(pop: 3,000)II: Very weakTierra del Fuego ProvinceArgentina344 km (214 mi)N of epicenterRio Grande(pop: 52,700)II: Very weakDepartamento de Rio Grande, Tierra del Fuego ProvinceArgentina441 km (274 mi)NW of epicenterPorvenir(pop: 6,810)II: Very weakProvincia de Tierra del Fuego, Region de Magallanes y Antartica ChilenaChile470 km (292 mi)NW of epicenterPunta Arenas(pop: 117,400)II: Very weakProvincia de Magallanes, Region de Magallanes y Antartica ChilenaChile597 km (371 mi)N of epicenterRio Gallegos(pop: 95,800)I: Not feltDepartamento de Gueer Aike, Santa Cruz ProvinceArgentina661 km (411 mi)NW of epicenterPuerto Natales(pop: 18,500)I: Not feltProvincia de Ultima Esperanza, Region de Magallanes y Antartica ChilenaChile667 km (414 mi)NW of epicenter28 de Noviembre(pop: 4,690)I: Not feltDepartamento de Gueer Aike, Santa Cruz ProvinceArgentina675 km (420 mi)NW of epicenterRio Turbio(pop: 6,650)I: Not feltDepartamento de Gueer Aike, Santa Cruz ProvinceArgentina758 km (471 mi)SE of epicenterThe Stars Village(pop: 150)I: Not felt Antarctica845 km (525 mi)NE of epicenterStanley(pop: 2,210)I: Not felt Falkland IslandsNotes:(*) 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 GMT2026-07-29EpicenterAgency4.910 km6.2 mi(*)05:00:28217 km al S de Puerto WilliamsCSN (National Seismological Center (Centro Sismológico Nacional))Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy."; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: Puerto Williams (MG01/C1 network) | Distance from quake: 217 km / 135 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: ISLA DAWSON (MG03/C1 network) | Distance from quake: 389 km / 242 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 8 km2 (3 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 5 km (3 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 29, 2026 02:00 am (GMT -3)33 minutes ago4.910 km0 km - This quakeChile: 217 km Al S De Puerto WilliamsMain 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 47 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.06 quakes per year (or 1 quake every 16.4 years)Mag. 5 or higher: 0.68 quakes per year (or 1 quake every 1.5 years)Mag. 4 or higher: 9.6 quakes per yearMag. 3 or higher: 33.6 quakes per year (or 2.8 quakes per month)Mag. 2 or higher: 44 quakes per year (or 3.7 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 4 quakes above magnitude 6 since 1970, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 10 to 15 years.Number of quakes per yearPrevious quakes in the same area of this earthquake