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The quake had a shallow depth of 39 km (24 mi) and was reported felt by some people near the epicenter.Quake Data | Interactive map | User reports | Aftershocks | Earlier quakes here | Quakes in Chile | Quakes in Peru | Tarapacá | Region de Antofagasta | Region de Arica y ParinacotaHint: Click on the image to see different maps of this quake!Moderate magnitude 4.6 earthquake at 39 km depth27 Jul 04:29 UTC: First to report: VolcanoDiscovery after 59 seconds.27 Jul 04:34: Now using data updates from CSNI didn't feel itI felt this quakeEarthquake detailsDate & timeJul 27, 2025 04:28:59 UTC - Local time at epicenterSunday, Jul 27, 2025, at 04:28 am (Universal Time GMT +0)Statuspreliminary (automatic detection)Magnitude4.6Depth39 kmEpicenter latitude / longitude20.945°S / 70.673°WTarapacá, ChileSeismic antipode20.945°N / 109.327°EShaking intensityIV Light shaking near epicenterFelt2 reportsPrimary data sourceCSN (National Seismological Center (Centro Sismológico Nacional))Nearest volcanoIrruputuncu (173 km / 107 mi)Weather at epicenter at time of quakeScattered Clouds 15.9°C (61 F), humidity: 69%, wind: 1 m/s (1 kts) from SEEstimated seismic energy released5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) | equivalent to ONE quake of magnitude 4.6 | about seismic energy6 minutes ago reported feltJul 27, 2025 04:28 GMT / Jul 27, 2025 04:28 am (Universal Time)Lat / Lng: -20.945 / -70.673: Chile: 51 km Al O De PatacheSource: CSNDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-21995879',-20.94500,-70.67300,'6 minutes ago: Mag. 4.6, Chile: 51 km Al O De Patache',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 Iquique, a city with more than 190,000 inhabitants in Chile, in 98 km (61 mi) distance northeast 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.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry53 km (33 mi)E of epicenterRio Seco(pop: 145)III: WeakProvincia de Iquique, TarapacáChile57 km (35 mi)NE of epicenterChanavayita(pop: 603)III: WeakProvincia de Iquique, TarapacáChile62 km (38 mi)NE of epicenterPlaya Quinteros(pop: 20)III: WeakProvincia de Iquique, TarapacáChile74 km (46 mi)SE of epicenterCaleta Chipana(pop: 84)III: WeakProvincia de Iquique, TarapacáChile79 km (49 mi)NE of epicenterLos Verdes(pop: 216)III: WeakProvincia de Iquique, TarapacáChile96 km (59 mi)NE of epicenterAlto Hospicio(pop: 108,400)III: WeakProvincia de Iquique, TarapacáChile98 km (61 mi)NE of epicenterIquique(pop: 191,500)III: WeakTarapacáChile108 km (67 mi)E of epicenterOficina Victoria(pop: 83)III: WeakProvincia del Tamarugal, TarapacáChile120 km (74 mi)E of epicenterColonia Pintados(pop: 143)III: WeakProvincia del Tamarugal, TarapacáChile120 km (75 mi)NE of epicenterPozo Almonte(pop: 15,700)III: WeakProvincia del Tamarugal, TarapacáChile126 km (78 mi)NE of epicenterLa Tirana(pop: 1,530)II: Very weakProvincia del Tamarugal, TarapacáChile131 km (81 mi)NE of epicenterBaquedano(pop: 587)II: Very weakProvincia del Tamarugal, TarapacáChile137 km (85 mi)S of epicenterTocopilla(pop: 24,500)II: Very weakRegion de AntofagastaChile141 km (88 mi)NE of epicenterHuara(pop: 2,730)II: Very weakProvincia del Tamarugal, TarapacáChile142 km (88 mi)SE of epicenterQuillagua(pop: 141)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile148 km (92 mi)E of epicenterPica(pop: 9,300)II: Very weakProvincia del Tamarugal, TarapacáChile157 km (98 mi)N of epicenterPisagua(pop: 443)II: Very weakProvincia del Tamarugal, TarapacáChile166 km (103 mi)NE of epicenterTarapaca(pop: 121)II: Very weakProvincia del Tamarugal, TarapacáChile168 km (104 mi)E of epicenterHuatacondo(pop: 55)II: Very weakProvincia del Tamarugal, TarapacáChile176 km (110 mi)NE of epicenterPachica(pop: 168)II: Very weakProvincia del Tamarugal, TarapacáChile180 km (112 mi)NE of epicenterMamiña(pop: 319)II: Very weakProvincia del Tamarugal, TarapacáChile187 km (116 mi)SE of epicenterMaria Elena(pop: 4,900)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile202 km (125 mi)NE of epicenterLimaxiña(pop: 64)II: Very weakProvincia del Tamarugal, TarapacáChile205 km (127 mi)N of epicenterCuya(pop: 166)II: Very weakArica, Region de Arica y ParinacotaChile209 km (130 mi)NE of epicenterFrancia(pop: 62)II: Very weakProvincia del Tamarugal, TarapacáChile212 km (132 mi)NE of epicenterSotoca(pop: 49)II: Very weakProvincia del Tamarugal, TarapacáChile223 km (139 mi)NE of epicenterCamina(pop: 1,250)II: Very weakProvincia del Tamarugal, TarapacáChile231 km (144 mi)N of epicenterCamarones(pop: 66)II: Very weakArica, Region de Arica y ParinacotaChile235 km (146 mi)NE of epicenterNama(pop: 44)II: Very weakProvincia del Tamarugal, TarapacáChile241 km (150 mi)S of epicenterMejillones(pop: 12,800)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile247 km (153 mi)SE of epicenterCalama(pop: 165,700)II: Very weakProvincia de El Loa, Region de AntofagastaChile253 km (157 mi)E of epicenterOllagüe(pop: 134)II: Very weakProvincia de El Loa, Region de AntofagastaChile253 km (157 mi)NE of epicenterEsquiña(pop: 54)II: Very weakArica, Region de Arica y ParinacotaChile258 km (160 mi)SE of epicenterSierra Gorda(pop: 477)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile265 km (165 mi)N of epicenterTimar(pop: 57)II: Very weakArica, Region de Arica y ParinacotaChile278 km (172 mi)N of epicenterArica(pop: 221,400)II: Very weakRegion de Arica y ParinacotaChile279 km (173 mi)S of epicenterBaquedano(pop: 858)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile282 km (175 mi)NE of epicenterColchane(pop: 1,730)II: Very weakProvincia del Tamarugal, TarapacáChile296 km (184 mi)N of epicenterLos Palos(pop: 207)II: Very weakTacna, TacnaPeru336 km (209 mi)SE of epicenterSan Pedro de Atacama(pop: 2,000)II: Very weakProvincia de El Loa, Region de AntofagastaChileNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (2)The first report about ground shaking reached us after only 59 seconds, before other agencies reported it. So far, we have received 2 reports for this quake from Chile. The quake was reported to have been felt in up to approx. 100 km (62 mi) distance.Most reports came from Iquique, a city with more than 190,000 inhabitants in Tarapacá in 98 km (61 mi) distance northeast of the epicenter, Chile. Further below is a list of places where most people reported this quake.This section is being updated as new data comes in.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.Translate95.3 km NE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)Alto hospicio (95.6 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 sList of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsIquique, Tarapacá, Chile(Pop.: 191,468)98 km (61 mi)NE of epicenterIV: Light shaking1Note: Only reports with latitude/longitude coordinate positions given (2 in total) could be used for statistics.What is Intensity and the Mercalli Intensity Scale?The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!Number of reports by intensityShaking intensityNumber of reportsMin-Max distance from epicenter (*)Average distance (*)II: Very weak shaking195–95 km (59–59 mi)95 km (59 mi)IV: Light shaking196–96 km (59–59 mi)96 km (59 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (2 in total) could be used for geographic statistics.I didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.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 GMT2025-07-27EpicenterAgency4.639 km24 mi04:28:5951 km al O de PatacheCSN (National Seismological Center (Centro Sismológico Nacional))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 4 km2 (2 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 27, 2025 04:28 am (Universal Time)6 minutes ago - felt4.639 km0 km - This quake5.1 km SE of Iquique, Provincia de Iquique, Tarapacá, ChileMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake6 minutes ago reported feltJul 27, 2025 04:28 GMT / Jul 27, 2025 04:28 am (Universal Time)Lat / Lng: -20.945 / -70.673: Chile: 51 km Al O De PatacheSource: CSNDetail info | Read user reports | You felt it? - Report it!',4.6,46, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',-20.945,-70.673,'6 minutes ago: Mag. 4.6, Chile: 51 km Al O De Patache','Earthquake: Mag 4.6 / 39 km (24 mi) depth6 minutes ago reported feltJul 27, 2025 04:28 GMT / Jul 27, 2025 04:28 am (Universal Time)Lat / Lng: -20.945 / -70.673: Chile: 51 km Al O De PatacheSource: CSNDetail info | Read user reports | 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=21995879","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)}})})();]]>