Moderate magnitude 4.0 earthquake at 27 km depth27 Jul 12:55 UTC: First to report: EMSC after 4 minutes.27 Jul 12:56: Now using data updates from CSNI didn't feel itI felt this quakeEarthquake detailsDate & timeJul 27, 2025 12:51:10 UTC - Local time at epicenterSunday, Jul 27, 2025, at 07:51 am (GMT -5)StatusconfirmedMagnitude4.0Depth27 kmEpicenter latitude / longitude32.8°S / 71.98°WRegion de Valparaiso, ChileSeismic antipode32.8°N / 108.02°EChinaShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceCSN (National Seismological Center (Centro Sismológico Nacional))Nearest volcanoTupungatito (214 km / 133 mi)Weather at epicenter at time of quakeOvercast Clouds 12.7°C (55 F), humidity: 84%, wind: 1 m/s (2 kts) from NNWEstimated 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 energy13 minutes agoJul 27, 2025 12:51 GMT / Jul 27, 2025 07:51 am (GMT -5)Lat / Lng: -32.8 / -71.98: Chile: 43 km Al O De QuinteroSource: CSNOther sources: EMSC: 4.0 / 27 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-21996803',-32.80000,-71.98000,'13 minutes ago: Mag. 4.0, Chile: 43 km Al O De Quintero',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 Vina del Mar, a city with more than 290,000 inhabitants in Chile, in 47 km (29 mi) distance southeast 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. In the capital of Chile, Santiago, 144 km (89 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry42 km (26 mi)SE of epicenterValparaiso(pop: 282,400)III: WeakValparaiso, Region de ValparaisoChile47 km (29 mi)SE of epicenterVina del Mar(pop: 294,600)III: WeakValparaiso, Region de ValparaisoChile57 km (36 mi)SE of epicenterQuilpue(pop: 130,300)II: Very weakMarga Marga, Region de ValparaisoChile63 km (39 mi)SE of epicenterVilla Alemana(pop: 97,300)II: Very weakMarga Marga, Region de ValparaisoChile69 km (43 mi)E of epicenterQuillota(pop: 67,800)II: Very weakRegion de ValparaisoChile71 km (44 mi)E of epicenterLimache(pop: 35,900)II: Very weakMarga Marga, Region de ValparaisoChile71 km (44 mi)E of epicenterHacienda La Calera(pop: 49,100)II: Very weakQuillota, Region de ValparaisoChile80 km (50 mi)NE of epicenterLa Ligua(pop: 24,900)II: Very weakPetorca, Region de ValparaisoChile91 km (56 mi)SE of epicenterCartagena(pop: 16,900)II: Very weakSan Antonio, Region de ValparaisoChile95 km (59 mi)S of epicenterSan Antonio(pop: 85,700)II: Very weakRegion de ValparaisoChile96 km (60 mi)E of epicenterLlaillay(pop: 16,600)II: Very weakSan Felipe de Aconcagua, Region de ValparaisoChile116 km (72 mi)SE of epicenterLampa(pop: 29,300)II: Very weakChacabuco, Santiago MetropolitanChile117 km (73 mi)E of epicenterSan Felipe(pop: 59,300)II: Very weakRegion de ValparaisoChile122 km (76 mi)SE of epicenterMelipilla(pop: 63,100)II: Very weakSantiago MetropolitanChile129 km (80 mi)E of epicenterLos Andes(pop: 56,900)II: Very weakRegion de ValparaisoChile135 km (84 mi)SE of epicenterEl Monte(pop: 23,100)II: Very weakTalagante, Santiago MetropolitanChile135 km (84 mi)SE of epicenterChicureo Abajo(pop: 18,000)II: Very weakChacabuco, Santiago MetropolitanChile136 km (85 mi)SE of epicenterPenaflor(pop: 65,500)II: Very weakTalagante, Santiago MetropolitanChile137 km (85 mi)SE of epicenterLo Prado(pop: 104,300)II: Very weakSantiago, Santiago MetropolitanChile137 km (85 mi)SE of epicenterTalagante(pop: 51,800)II: Very weakSantiago MetropolitanChile144 km (89 mi)SE of epicenterSantiago(pop: 4,837,300)II: Very weakSantiago MetropolitanChile148 km (92 mi)SE of epicenterSan Bernardo(pop: 249,900)II: Very weakMaipo, Santiago MetropolitanChile151 km (94 mi)NE of epicenterIllapel(pop: 22,800)II: Very weakProvincia de Choapa, Region de CoquimboChile153 km (95 mi)SE of epicenterLa Pintana(pop: 201,200)II: Very weakSantiago, Santiago MetropolitanChile155 km (96 mi)SE of epicenterBuin(pop: 55,400)II: Very weakMaipo, Santiago MetropolitanChile159 km (99 mi)SE of epicenterPuente Alto(pop: 568,100)II: Very weakCordillera, Santiago MetropolitanChile161 km (100 mi)SE of epicenterPaine(pop: 32,800)II: Very weakMaipo, Santiago MetropolitanChile183 km (114 mi)SE of epicenterGraneros(pop: 23,300)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile191 km (119 mi)SE of epicenterRancagua(pop: 212,700)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile197 km (122 mi)SE of epicenterMachali(pop: 27,600)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile200 km (124 mi)SE of epicenterSan Vicente(pop: 22,600)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile201 km (125 mi)SE of epicenterSan Vicente de Tagua Tagua(pop: 29,600)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile207 km (128 mi)SE of epicenterRengo(pop: 38,100)I: Not feltProvincia de Cachapoal, Region del Libertador General Bernardo O'HigginsChile212 km (132 mi)S of epicenterSanta Cruz(pop: 33,300)I: Not feltProvincia de Colchagua, Region del Libertador General Bernardo O'HigginsChile230 km (143 mi)S of epicenterChimbarongo(pop: 17,400)I: Not feltProvincia de Colchagua, Region del Libertador General Bernardo O'HigginsChile252 km (157 mi)S of epicenterCurico(pop: 102,400)I: Not feltCurico, Region del MauleChile256 km (159 mi)N of epicenterOvalle(pop: 77,100)I: Not feltProvincia de Limari, Region de CoquimboChile265 km (165 mi)S of epicenterMolina(pop: 28,800)I: Not feltCurico, Region del MauleChile285 km (177 mi)S of epicenterConstitucion(pop: 37,900)I: Not feltTalca, Region del MauleChile294 km (182 mi)S of epicenterTalca(pop: 197,500)I: Not feltRegion del MauleChileNotes:(*) 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 GMT2025-07-27EpicenterAgency4.027 km17 mi12:51:1043 km al O de QuinteroCSN (National Seismological Center (Centro Sismológico Nacional))4.027 km17 mi12:51:10OFFSHORE VALPARAISO, CHILE0 km (0 mi) epicenter difference with CSNEMSC (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 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 27, 2025 07:51 am (GMT -5)13 minutes ago4.027 km0 km - This quakeSouth Pacific Ocean, 42 km NW of Valparaiso, Valparaiso, Region de Valparaiso, ChileMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 25 years and our earthquake archive back to 1900, there are about 434 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 8 or higher: 0.02 quakes per year (or 1 quake every 62.5 years)Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25 years)Mag. 6 or higher: 0.31 quakes per year (or 1 quake every 3.2 years)Mag. 5 or higher: 4.7 quakes per yearMag. 4 or higher: 30.7 quakes per year (or 2.6 quakes per month)Mag. 3 or higher: 197 quakes per year (or 16.4 quakes per month)Mag. 2 or higher: 437 quakes per year (or 36.4 quakes per month)Mag. 1 or higher: 442 quakes per year (or 36.8 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 2 quakes above magnitude 8 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 earthquakeThe earthquake occurred 6 weeks after a magnitude 4.0 earthquake had hit on Thursday, Jun 12, 2025, at 08:06 pm (GMT -5 local time) in 22 km (14 mi) distance to the northeast:Mag. 4.0 earthquake South Pacific Ocean - Region de Valparaiso, Chile - Jun 12, 2025 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.2. It had occurred 10 years ago earlier, on Wednesday, Sep 16, 2015, at 06:54 pm local time (America/Santiago GMT -4) in Region de Coquimbo, Chile:Mag. 8.2 earthquake 40 km west of Illapel - Region de Coquimbo, Chile - Sep 16, 2015 - Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.Max results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageDate and TimeMagDepthDistanceLocationDetailsMapJun 12, 08:06 pm (GMT -5)4.034 km22 km (14 mi) to the NESouth Pacific Ocean, 44 km north of Valparaiso, Valparaiso, Region de Valparaiso, Chile 7 reportsInfoMay 4, 11:56 am (GMT -4)4.841 km78 km (48 mi) to the S 57 km Al O De El Tabo 4 reportsInfoMay 4, 10:25 am (GMT -4)4.335 km77 km (48 mi) to the SSouth Pacific Ocean, 77 km southwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoMar 15, 07:22 pm (GMT -5)4.158 km44 km (27 mi) to the NESouth Pacific Ocean, 63 km north of Valparaiso, Valparaiso, Region de Valparaiso, Chile 27 reportsInfoMar 1, 06:22 am (Santiago)4.260 km81 km (50 mi) to the SE 20 km southeast of Villa Alemana, Marga Marga, Region de Valparaiso, Chile 23 reportsInfoApr 24, 2017 05:38 pm (Santiago)6.722 km25 km (15 mi) to the SE Near Coast of Central Chile 117 reportsInfoSep 19, 2015 08:52 am (Santiago)6.220 km66 km (41 mi) to the N Near Coast of Central Chile 8 reportsInfoSep 18, 2015 05:10 am (GMT -4)6.413 km66 km (41 mi) to the NChile (Peruvian Point of View) [Sea] 2 reportsInfoSep 16, 2015 06:54 pm (Santiago)8.223 km147 km (91 mi) to the N Near Coast of Central Chile 103 reportsInfoAug 23, 2014 06:32 pm (Santiago)6.433 km67 km (42 mi) to the E Near Coast of Central Chile 59 reportsInfoApr 16, 2012 11:50 pm (Santiago)6.729 km61 km (38 mi) to the EPetorca, 22 km northwest of Hacienda La Calera, Quillota, Region de Valparaiso, ChileInfoMar 25, 2012 06:37 pm (Santiago)7.141 km268 km (166 mi) to the S 23 km northeast of Constitucion, Talca, Region del Maule, ChileInfoMar 11, 2010 10:55 am (Santiago)7.018 km171 km (106 mi) to the SProvincia de Cardenal Caro, 99 km west of Rancagua, Provincia de Cachapoal, Region del Libertador General Bernardo O'Higgins, ChileInfoMar 3, 2010 09:59 pm (GMT -4)6.024 km48 km (30 mi) to the SSouth Pacific Ocean, 50 km southwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoFeb 27, 2010 03:00 pm (Santiago)6.231 km71 km (44 mi) to the SSouth Pacific Ocean, 47 km southwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoFeb 27, 2010 06:30 am (GMT -4)6.035 km54 km (33 mi) to the SSouth Pacific Ocean, 41 km southwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoDec 18, 2008 05:50 pm (GMT -4)6.025 km37 km (23 mi) to the NSouth Pacific Ocean, 74 km northwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoDec 18, 2008 05:19 pm (GMT -4)6.218 km45 km (28 mi) to the NESouth Pacific Ocean, 65 km north of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoMar 15, 2001 09:02 am (Santiago)6.037 km70 km (44 mi) to the NESouth Pacific Ocean, 29 km northwest of La Ligua, Petorca, Region de Valparaiso, ChileInfoJul 29, 1998 03:14 am (Santiago)6.451 km85 km (53 mi) to the NE 16 km north of La Ligua, Petorca, Region de Valparaiso, ChileInfoOct 14, 1997 09:03 pm (Santiago)7.158 km220 km (137 mi) to the N 37 km south of Ovalle, Provincia de Limari, Region de Coquimbo, ChileInfoApr 8, 1985 09:56 pm (Santiago)7.238 km152 km (94 mi) to the SProvincia de Cardenal Caro, Region del Libertador General Bernardo O'Higgins, 60 km south of San Antonio, San Antonio, Region de Valparaiso, ChileInfoMar 19, 1985 12:01 am (Santiago)6.742 km54 km (33 mi) to the SE 18 km S of Valparaíso, ChileInfoMar 17, 1985 06:41 am (Santiago)6.733 km44 km (27 mi) to the NESouth Pacific Ocean, 45 km north of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoMar 3, 1985 11:32 pm (Santiago)6.633 km22 km (14 mi) to the SESouth Pacific Ocean, 20 km northwest of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoMar 3, 1985 08:32 pm (Santiago)7.433 km54 km (34 mi) to the SEValparaiso, 27 km southwest of Quilpue, Marga Marga, Region de Valparaiso, ChileInfoMar 3, 1985 06:47 pm (Santiago)8.033 km39 km (24 mi) to the S 25 km WSW of Valparaíso, ChileInfoNov 7, 1981 12:29 am (Santiago)6.865 km90 km (56 mi) to the NEPetorca, 77 km north of Quillota, Quillota, Region de Valparaiso, ChileInfoOct 15, 1981 11:25 pm (GMT -4)7.233 km109 km (68 mi) to the WSouth Pacific Ocean, 135 km west of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoOct 5, 1973 01:47 am (Santiago)6.733 km57 km (35 mi) to the NEPetorca, 59 km north of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoOct 5, 1973 01:45 am (Santiago)6.514 km22 km (13 mi) to the SSouth Pacific Ocean, 27 km west of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoJul 8, 1971 11:03 pm (Santiago)7.860 km87 km (54 mi) to the E 24 km northeast of Hacienda La Calera, Quillota, Region de Valparaiso, ChileInfoMar 28, 1965 12:33 pm (Santiago)7.470 km76 km (48 mi) to the NE 7.8 km south of La Ligua, Petorca, Region de Valparaiso, ChileInfoSep 4, 1953 10:07 am (Santiago)6.237 km27 km (17 mi) to the ESouth Pacific Ocean, 34 km north of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoApr 15, 1943 11:34 am (Universal Time)6.425 km85 km (53 mi) to the NSouth Pacific Ocean, 74 km southwest of Illapel, Provincia de Choapa, Region de Coquimbo, ChileInfoApr 6, 1943 04:07 pm (Universal Time)8.135 km181 km (112 mi) to the N 45 km northwest of Illapel, Provincia de Choapa, Region de Coquimbo, ChileInfoApr 8, 1940 08:49 am (Universal Time)6.120 km33 km (20 mi) to the SWSouth Pacific Ocean, 59 km west of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoNov 29, 1932 11:11 am (Universal Time)6.535 km92 km (57 mi) to the NE Valparaiso, ChileInfoOct 17, 1930 08:46 am (Universal Time)6.435 km77 km (48 mi) to the E 17 km NNE of Hacienda La Calera, ChileInfoDec 1, 1928 04:06 am (Universal Time)7.735 km255 km (159 mi) to the S Maule, ChileInfoJan 30, 1914 03:36 am (Universal Time)7.615 km251 km (156 mi) to the SW 103 km NW of Constitución, ChileInfoOct 2, 1906 02:33 pm (Universal Time)6.315 km72 km (45 mi) to the NSouth Pacific Ocean, Region de Coquimbo, 97 km north of Vina del Mar, Valparaiso, Region de Valparaiso, ChileInfoAug 19, 1906 09:27 am (Universal Time)6.90 km22 km (14 mi) to the SSouth Pacific Ocean, 35 km west of Valparaiso, Valparaiso, Region de Valparaiso, ChileInfoAug 17, 1906 12:40 am (Universal Time)8.235 km70 km (44 mi) to the NE Valparaiso, ChileInfoMap of earlier quakes in the area of this quakeMax results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageOldest quakes are shown in yellow, most recent in red.[quakes -][quakes +][smaller][bigger]