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The quake had a very shallow depth of 32 km (20 mi) and 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 Atacama | Region de Coquimbo | San Juan ProvinceHint: Click on the image to see different maps of this quake!Moderate magnitude 4.0 earthquake at 32 km depth25 Jul 03:17 UTC: First to report: EMSC after 3 minutes.25 Jul 03:21: Hypocenter depth recalculated from 15.00 to 24.00 km (from 9.3 to 14.9 mi). Epicenter location corrected by 24 km (15 mi) towards E.25 Jul 03:29: Magnitude recalculated from 4.1 to 4.0. Hypocenter depth recalculated from 24.00 to 31.70 km (from 14.9 to 19.7 mi). Epicenter location corrected by 5.4 km (3.3 mi) towards ESE.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 25, 2026 03:14:30 UTC - Local time at epicenterFriday, Jul 24, 2026, at 11:14 pm (GMT -4)Statusconfirmed (manually revised)Magnitude4.00Depth31.7 kmEpicenter latitude / longitude28.7°S / 71.32°WHuasco, Region de Atacama, ChileSeismic antipode28.7°N / 108.68°EChinaShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Weather at epicenter at time of quakeOvercast Clouds 15°C (59 F), humidity: 83%, wind: 12 m/s (24 kts) from SSWEstimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | equivalent to ONE quake of magnitude 4.0 | about seismic energy18 minutes agoJul 25, 2026 03:14 GMT / Jul 24, 2026 11:14 pm (GMT -4)Lat / Lng: -28.7 / -71.32: Atacama, ChileSource: EMSCOther sources: CSN: 4.0 / 32 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23214058',-28.70000,-71.32000,'18 minutes ago: Mag. 4.0, Atacama, 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 Vallenar, a town with 45,000 inhabitants in Chile, in 56 km (35 mi) distance east of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Chile, Santiago, 533 km (331 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(*)RegionCountry28 km (17 mi)N of epicenterHuasco(pop: 8,980)III: WeakRegion de AtacamaChile32 km (20 mi)NE of epicenterFreirina(pop: 6,040)III: WeakHuasco, Region de AtacamaChile56 km (35 mi)E of epicenterVallenar(pop: 44,900)II: Very weakHuasco, Region de AtacamaChile82 km (51 mi)E of epicenterAlto del Carmen(pop: 5,030)II: Very weakHuasco, Region de AtacamaChile91 km (57 mi)S of epicenterLa Higuera(pop: 4,290)II: Very weakProvincia de Elqui, Region de CoquimboChile134 km (83 mi)S of epicenterLa Serena(pop: 154,500)II: Very weakProvincia de Elqui, Region de CoquimboChile139 km (87 mi)S of epicenterCoquimbo(pop: 161,300)II: Very weakProvincia de Elqui, Region de CoquimboChile160 km (99 mi)S of epicenterVicuna(pop: 27,800)II: Very weakProvincia de Elqui, Region de CoquimboChile167 km (104 mi)SE of epicenterPaiguano(pop: 4,260)II: Very weakProvincia de Elqui, Region de CoquimboChile172 km (107 mi)NE of epicenterTierra Amarilla(pop: 12,900)II: Very weakCopiapo, Region de AtacamaChile172 km (107 mi)S of epicenterAndacollo(pop: 11,100)II: Very weakProvincia de Elqui, Region de CoquimboChile177 km (110 mi)NE of epicenterCopiapo(pop: 129,300)II: Very weakCopiapo, Region de AtacamaChile177 km (110 mi)NE of epicenterCopiapo(pop: 129,300)II: Very weakCopiapo, Region de AtacamaChile188 km (117 mi)N of epicenterCaldera(pop: 16,200)I: Not feltCopiapo, Region de AtacamaChile212 km (132 mi)S of epicenterOvalle(pop: 77,100)I: Not feltProvincia de Limari, Region de CoquimboChile225 km (140 mi)S of epicenterMonte Patria(pop: 13,900)I: Not feltProvincia de Limari, Region de CoquimboChile237 km (148 mi)S of epicenterPunitaqui(pop: 10,400)I: Not feltProvincia de Limari, Region de CoquimboChile277 km (172 mi)S of epicenterCombarbala(pop: 13,600)I: Not feltProvincia de Limari, Region de CoquimboChile286 km (178 mi)NE of epicenterDiego de Almagro(pop: 13,900)I: Not feltChanaral, Region de AtacamaChile302 km (188 mi)SE of epicenterSan Jose de Jachal(pop: 21,000)I: Not feltDepartamento de Jachal, San Juan ProvinceArgentina304 km (189 mi)E of epicenterVinchina(pop: 2,830)I: Not feltLa Rioja ProvinceArgentina345 km (215 mi)SE of epicenterCalingasta(pop: 8,180)I: Not feltSan Juan ProvinceArgentina403 km (250 mi)SE of epicenterVilla Basilio Nievas(pop: 4,040)I: Not feltDepartamento de Zonda, San Juan ProvinceArgentina406 km (252 mi)SE of epicenterAlbardon(pop: 20,400)I: Not feltDepartamento de Albardon, San Juan ProvinceArgentina407 km (253 mi)SE of epicenterVilla General San Martin(pop: 10,100)I: Not feltDepartamento de San Martin, San Juan ProvinceArgentina410 km (255 mi)SE of epicenterVilla Paula de Sarmiento(pop: 19,100)I: Not feltDepartamento de Chimbas, San Juan ProvinceArgentina410 km (255 mi)SE of epicenterChimbas(pop: 73,800)I: Not feltSan Juan ProvinceArgentina414 km (258 mi)SE of epicenterSan Juan(pop: 109,100)I: Not feltDepartamento de Capital, San Juan ProvinceArgentina417 km (259 mi)SE of epicenterSanta Lucia(pop: 43,600)I: Not feltDepartamento de Santa Lucia, San Juan ProvinceArgentina533 km (331 mi)S of epicenterSantiago(pop: 4,837,300): Not feltSantiago MetropolitanChileNotes:(*) 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 GMT2026-07-25EpicenterAgency4.032 km20 mi03:14:30ATACAMA, CHILEEMSC (European-Mediterranean Seismological Centre)4.032 km20 mi03:14:3028 km al SO de Huasco0.1 km (0.1 mi) epicenter difference with EMSCCSN (National Seismological Center (Centro Sismológico Nacional))"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: Llanos de Challe (AC04/C1 network) | Distance from quake: 60 km / 37 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: Las Campanas Astronomical Observatory, Chile (LCO/IU network) | Distance from quake: 70 km / 43 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 1 km2 (0 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)Jul 24, 2026 11:14 pm (GMT -4)18 minutes ago4.032 km0 km - This quakeSouth Pacific Ocean, 56 km W of Vallenar, Huasco, Region de Atacama, 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 374 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.22 quakes per year (or 1 quake every 4.6 years)Mag. 5 or higher: 3.2 quakes per yearMag. 4 or higher: 35.7 quakes per year (or 3 quakes per month)Mag. 3 or higher: 183 quakes per year (or 15.2 quakes per month)Mag. 2 or higher: 372 quakes per year (or 31 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 27 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 1 to 5 years.Number of quakes per yearPrevious quakes in the same area of this earthquake