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The quake had a moderate depth of 139 km (87 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in Chile | Quakes in Argentina | Quakes in Bolivia | Region de Antofagasta | Salta Province | Catamarca ProvinceHint: Click on the image to see different maps of this quake!Moderate magnitude 4.4 earthquake at 139 km depth21 Jul 03:02 UTC: First to report: EMSC after 3 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 21, 2025 02:59:43 UTC - Local time at epicenterSunday, Jul 20, 2025, at 10:59 pm (GMT -4)Statuspreliminary (automatic detection)Magnitude4.4Depth139 kmEpicenter latitude / longitude23.9°S / 68.45°WProvincia de El Loa, Region de Antofagasta, ChileAlso near: Argentina 59 km (37 mi) awaySeismic antipode23.9°N / 111.55°EChinaShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoTilocalar (33 km / 21 mi)Weather at epicenter at time of quakeClear Sky 7.9°C (46 F), humidity: 14%, wind: 3 m/s (7 kts) from SEstimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | equivalent to ONE quake of magnitude 4.4 | about seismic energy4 minutes agoJul 21, 2025 02:59 GMT / Jul 20, 2025 10:59 pm (GMT -4)Lat / Lng: -23.9 / -68.45: Antofagasta, ChileSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-21977672',-23.90000,-68.45000,'4 minutes ago: Mag. 4.4, Antofagasta, Chile',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 San Pedro de Atacama, a town with 2,000 inhabitants in Chile, in 113 km (70 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(*)RegionCountry113 km (70 mi)N of epicenterSan Pedro de Atacama(pop: 2,000)II: Very weakProvincia de El Loa, Region de AntofagastaChile143 km (89 mi)NW of epicenterSierra Gorda(pop: 477)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile155 km (96 mi)NW of epicenterBaquedano(pop: 858)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile168 km (104 mi)N of epicenterCalama(pop: 165,700)II: Very weakProvincia de El Loa, Region de AntofagastaChile200 km (124 mi)W of epicenterAntofagasta(pop: 352,600)II: Very weakRegion de AntofagastaChile213 km (132 mi)NW of epicenterMaria Elena(pop: 4,900)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile219 km (136 mi)E of epicenterSan Antonio de los Cobres(pop: 4,000)II: Very weakDepartamento de Los Andes, Salta ProvinceArgentina222 km (138 mi)NW of epicenterMejillones(pop: 12,800)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile261 km (162 mi)E of epicenterSanta Rosa de Tastil(pop: 2,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina262 km (163 mi)SE of epicenterAntofagasta de la Sierra(pop: 500)I: Not feltCatamarca ProvinceArgentina265 km (165 mi)SW of epicenterTaltal(pop: 10,000)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile268 km (167 mi)SE of epicenterCachi(pop: 2,190)I: Not feltSalta ProvinceArgentina269 km (167 mi)NW of epicenterTocopilla(pop: 24,500)I: Not feltRegion de AntofagastaChile273 km (170 mi)NW of epicenterQuillagua(pop: 141)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile292 km (182 mi)E of epicenterEl Aguilar(pop: 3,660)I: Not feltHumahuaca, Jujuy ProvinceArgentina298 km (185 mi)N of epicenterOllagüe(pop: 134)I: Not feltProvincia de El Loa, Region de AntofagastaChile301 km (187 mi)E of epicenterPurmamarca(pop: 388)I: Not feltTumbaya, Jujuy ProvinceArgentina306 km (190 mi)E of epicenterCampo Quijano(pop: 5,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina310 km (193 mi)NE of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina313 km (195 mi)E of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina320 km (199 mi)NE of epicenterCulpina K(pop: 71)I: Not feltDepartamento de PotosiBolivia320 km (199 mi)SW of epicenterDiego de Almagro(pop: 18,100)I: Not feltChanaral, Region de AtacamaChile323 km (201 mi)E of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina326 km (202 mi)E of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina326 km (203 mi)SE of epicenterEl Carril(pop: 9,780)I: Not feltDepartamento de Chicoana, Salta ProvinceArgentina331 km (206 mi)NW of epicenterCaleta Chipana(pop: 84)I: Not feltProvincia de Iquique, TarapacáChile333 km (207 mi)NE of epicenterSan Cristobal(pop: 75)I: Not feltDepartamento de PotosiBolivia347 km (216 mi)SE of epicenterCafayate(pop: 11,800)I: Not feltSalta ProvinceArgentina354 km (220 mi)NE of epicenterLa Quiaca(pop: 14,800)I: Not feltYavi, Jujuy ProvinceArgentina355 km (221 mi)NE of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia391 km (243 mi)NE of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBoliviaNotes:(*) 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 GMT2025-07-21EpicenterAgency4.4139 km87 mi02:59:43ANTOFAGASTA, CHILEEMSC (European-Mediterranean Seismological Centre)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 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 20, 2025 10:59 pm (GMT -4)4 minutes ago4.4139 km0 km - This quakeProvincia de El Loa, 200 km E of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake4 minutes agoJul 21, 2025 02:59 GMT / Jul 20, 2025 10:59 pm (GMT -4)Lat / Lng: -23.9 / -68.45: Antofagasta, ChileSource: EMSCDetail info | You felt it? - Report it!',4.4,44, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',-23.9,-68.45,'4 minutes ago: Mag. 4.4, Antofagasta, Chile','Earthquake: Mag 4.4 / 139 km (87 mi) depth4 minutes agoJul 21, 2025 02:59 GMT / Jul 20, 2025 10:59 pm (GMT -4)Lat / Lng: -23.9 / -68.45: Antofagasta, ChileSource: 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=21977672","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)}})})();]]>Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.