Moderate magnitude 4.2 earthquake at 242 km depth28 Jun 11:31 UTC: First to report: EMSC after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJun 28, 2026 11:26:27 UTC - Local time at epicenterSunday, Jun 28, 2026, at 07:26 am (GMT -4)Statuspreliminary (automatic detection)Magnitude4.20Depth242 kmEpicenter latitude / longitude23.78°S / 67.34°WProvincia de El Loa, Region de Antofagasta, ArgentinaAlso near: Chile 0 km (0 mi) awaySeismic antipode23.78°N / 112.66°EChinaShaking intensityNot feltPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoLaco (16 km / 10 mi)Weather at epicenter at time of quakeScattered Clouds -4°C (25 F), humidity: 11%, wind: 4 m/s (7 kts) from WEstimated 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 agoJun 28, 2026 11:26 GMT / Jun 28, 2026 07:26 am (GMT -4)Lat / Lng: -23.78 / -67.34: Antofagasta, ChileSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23141742',-23.78000,-67.34000,'6 minutes ago: Mag. 4.2, 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 ArgentinaNearby placesThe closest larger town near the epicenter is Susques, a town with 1,100 inhabitants in Argentina, in 108 km (67 mi) distance to the northeast, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry108 km (67 mi)NE of epicenterSusques(pop: 1,140)I: Not feltJujuy ProvinceArgentina115 km (71 mi)SE of epicenterSan Antonio de los Cobres(pop: 4,000)I: Not feltDepartamento de Los Andes, Salta ProvinceArgentina131 km (81 mi)NW of epicenterSan Pedro de Atacama(pop: 11,000)I: Not feltProvincia de El Loa, Region de AntofagastaChile159 km (99 mi)SE of epicenterSanta Rosa de Tastil(pop: 2,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina181 km (112 mi)E of epicenterEl Aguilar(pop: 3,660)I: Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina191 km (119 mi)SE of epicenterCachi(pop: 2,190)I: Not feltSalta ProvinceArgentina199 km (124 mi)E of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina205 km (127 mi)NE of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina213 km (132 mi)E of epicenterSan Salvador de Jujuy(pop: 258,000)I: Not feltDepartamento de Doctor Manuel Belgrano, Jujuy ProvinceArgentina213 km (132 mi)E of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina213 km (132 mi)SE of epicenterCampo Quijano(pop: 5,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina219 km (136 mi)NW of epicenterCalama(pop: 166,300)I: Not feltProvincia de El Loa, Region de AntofagastaChile222 km (138 mi)E of epicenterPalpala(pop: 48,200)I: Not feltDepartamento de Palpala, Jujuy ProvinceArgentina225 km (140 mi)NW of epicenterSierra Gorda(pop: 1,070)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile226 km (140 mi)SE of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina236 km (147 mi)SE of epicenterEl Carril(pop: 9,780)I: Not feltDepartamento de Chicoana, Salta ProvinceArgentina248 km (154 mi)E of epicenterLa Mendieta(pop: 3,810)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina256 km (159 mi)E of epicenterSan Pedro de Jujuy(pop: 58,400)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina258 km (160 mi)NE of epicenterLa Quiaca(pop: 14,800)I: Not feltDepartamento de Yavi, Jujuy ProvinceArgentina259 km (161 mi)E of epicenterFraile Pintado(pop: 13,700)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina259 km (161 mi)E of epicenterLibertador General San Martin(pop: 49,300)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina260 km (161 mi)NE of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia278 km (173 mi)E of epicenterSanta Clara(pop: 4,880)I: Not feltDepartamento de Santa Barbara, Jujuy ProvinceArgentina280 km (174 mi)E of epicenterCaimancito(pop: 5,400)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina286 km (178 mi)NW of epicenterMaria Elena(pop: 7,530)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile290 km (180 mi)SE of epicenterCafayate(pop: 11,800)I: Not feltSalta ProvinceArgentina292 km (182 mi)E of epicenterYuto(pop: 7,730)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina309 km (192 mi)NE of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia310 km (192 mi)E of epicenterPalma Sola(pop: 5,320)I: Not feltDepartamento de Santa Barbara, Jujuy ProvinceArgentina312 km (194 mi)W of epicenterAntofagasta(pop: 401,100)I: Not feltRegion de AntofagastaChile316 km (196 mi)E of epicenterOrán(pop: 74,100)I: Not feltSalta ProvinceArgentina317 km (197 mi)N of epicenterPorco(pop: 5,960)I: Not feltDepartamento de PotosiBolivia325 km (202 mi)SE of epicenterEl Galpon(pop: 8,360)I: Not feltDepartamento de Metan, Salta ProvinceArgentina326 km (203 mi)W of epicenterMejillones(pop: 14,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile328 km (204 mi)E of epicenterBermejo(pop: 35,400)I: Not feltDepartamento de TarijaBolivia336 km (209 mi)E of epicenterLas Lajitas(pop: 9,150)I: Not feltDepartamento de Anta, Salta ProvinceArgentina348 km (216 mi)NW of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile366 km (227 mi)SW of epicenterTaltal(pop: 11,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile366 km (228 mi)NE of epicenterTarija(pop: 159,300)I: Not feltDepartamento de TarijaBolivia398 km (247 mi)SW of epicenterDiego de Almagro(pop: 13,900)I: Not feltChanaral, Region de AtacamaChileNotes:(*) 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 GMT2026-06-28EpicenterAgency4.2242 km150 mi11:26:27ANTOFAGASTA, 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 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)Jun 28, 2026 07:26 am (GMT -4)6 minutes ago4.2242 km0 km - This quakeAntofagasta, ChileMain 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 1,200 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: 0.36 quakes per year (or 1 quake every 2.8 years)Mag. 5 or higher: 3.8 quakes per yearMag. 4 or higher: 144 quakes per year (or 12 quakes per month)Mag. 3 or higher: 911 quakes per year (or 76 quakes per month)Mag. 2 or higher: 1,100 quakes per year (or 3.1 quakes per day)The area where this quake occurred has a very 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