Moderate magnitude 4.5 earthquake at 118 km depth18 Apr 02:13 UTC: First to report: EMSC after 5 minutes.18 Apr 02:21: Magnitude recalculated from 3.8 to 4.0. Hypocenter depth recalculated from 108.60 to 125.00 km (from 67 to 78 mi). Epicenter location corrected by 119 km (74 mi) towards N.18 Apr 02:29: Now using data updates from USGSI didn't feel itI felt this quakeEarthquake detailsDate & timeApr 18, 2026 02:08:08 UTC - Local time at epicenterFriday, Apr 17, 2026, at 10:08 pm (GMT -4)Statusconfirmed (manually revised)Magnitude4.50Depth118 kmEpicenter latitude / longitude21.041°S / 68.2538°WProvincia de El Loa, Departamento de Potosi, BoliviaAlso near: Chile 21 km (13 mi) awaySeismic antipode21.041°N / 111.7462°EChinaQuality29 seismic stationsShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoCerro del Azufre (35 km / 22 mi)Weather at epicenter at time of quakeOvercast Clouds 7.5°C (46 F), humidity: 52%, wind: 1 m/s (2 kts) from SSWEstimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | equivalent to ONE quake of magnitude 4.5 | about seismic energy26 minutes agoApr 18, 2026 02:08 GMT / Apr 17, 2026 10:08 pm (GMT -4)Lat / Lng: -21.041 / -68.2538: 20 km N of Ollagüe, ChileSource: USGSOther sources: CSN: 4.3 / 132 km, GFZ: 4.4 / 150 km, 1 more...Detail info | You felt it? - Report it!';storedMarkers.push(['quake-22920108',-21.04100,-68.25380,'26 minutes ago: Mag. 4.5, 20 km N of Ollagüe, 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 BoliviaNearby placesThe closest larger town where the quake might have been felt is Ollagüe, a town with 134 inhabitants in Chile, in 20 km (13 mi) distance south of the epicenter. People likely experienced very weak shaking there. In the capital of Bolivia, Sucre, 384 km (239 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(*)RegionCountry20 km (13 mi)S of epicenterOllagüe(pop: 134)II: Very weakProvincia de El Loa, Region de AntofagastaChile84 km (52 mi)W of epicenterHuatacondo(pop: 55)II: Very weakProvincia del Tamarugal, TarapacáChile110 km (68 mi)E of epicenterCulpina K(pop: 71)II: Very weakDepartamento de PotosiBolivia114 km (71 mi)E of epicenterSan Cristobal(pop: 75)II: Very weakDepartamento de PotosiBolivia128 km (79 mi)NW of epicenterPica(pop: 9,300)II: Very weakProvincia del Tamarugal, TarapacáChile145 km (90 mi)W of epicenterColonia Pintados(pop: 143)II: Very weakProvincia del Tamarugal, TarapacáChile147 km (91 mi)NW of epicenterMamiña(pop: 319)II: Very weakProvincia del Tamarugal, TarapacáChile149 km (93 mi)SW of epicenterQuillagua(pop: 141)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile150 km (93 mi)W of epicenterOficina Victoria(pop: 83)II: Very weakProvincia del Tamarugal, TarapacáChile160 km (100 mi)NE of epicenterColchani(pop: 12,000)II: Very weakDepartamento de PotosiBolivia162 km (101 mi)NE of epicenterUyuni(pop: 10,300)II: Very weakDepartamento de PotosiBolivia166 km (103 mi)NW of epicenterLa Tirana(pop: 837)II: Very weakProvincia del Tamarugal, TarapacáChile170 km (106 mi)NW of epicenterLimaxiña(pop: 64)II: Very weakProvincia del Tamarugal, TarapacáChile172 km (107 mi)SW of epicenterCalama(pop: 166,300)II: Very weakProvincia de El Loa, Region de AntofagastaChile179 km (111 mi)NW of epicenterPachica(pop: 168)II: Very weakProvincia del Tamarugal, TarapacáChile181 km (112 mi)NW of epicenterTarapaca(pop: 121)II: Very weakProvincia del Tamarugal, TarapacáChile182 km (113 mi)NW of epicenterPozo Almonte(pop: 16,900)II: Very weakProvincia del Tamarugal, TarapacáChile186 km (115 mi)NW of epicenterBaquedano(pop: 587)II: Very weakProvincia del Tamarugal, TarapacáChile190 km (118 mi)NW of epicenterSotoca(pop: 49)II: Very weakProvincia del Tamarugal, TarapacáChile194 km (120 mi)W of epicenterCaleta Chipana(pop: 84)II: Very weakProvincia de Iquique, TarapacáChile196 km (122 mi)NW of epicenterHuara(pop: 2,860)II: Very weakProvincia del Tamarugal, TarapacáChile198 km (123 mi)W of epicenterRio Seco(pop: 145)II: Very weakProvincia de Iquique, TarapacáChile200 km (125 mi)N of epicenterColchane(pop: 1,730)II: Very weakProvincia del Tamarugal, TarapacáChile205 km (127 mi)W of epicenterChanavayita(pop: 603)II: Very weakProvincia de Iquique, TarapacáChile205 km (128 mi)SW of epicenterMaria Elena(pop: 4,900)II: Very weakProvincia de Tocopilla, Region de AntofagastaChile208 km (129 mi)S of epicenterSan Pedro de Atacama(pop: 2,000)II: Very weakProvincia de El Loa, Region de AntofagastaChile209 km (130 mi)W of epicenterLos Verdes(pop: 216)II: Very weakProvincia de Iquique, TarapacáChile211 km (131 mi)NW of epicenterAlto Hospicio(pop: 142,100)II: Very weakProvincia de Iquique, TarapacáChile211 km (131 mi)E of epicenterAtocha(pop: 1,830)II: Very weakDepartamento de PotosiBolivia218 km (135 mi)NW of epicenterIquique(pop: 199,600)II: Very weakTarapacáChile228 km (142 mi)NW of epicenterCamina(pop: 1,340)II: Very weakProvincia del Tamarugal, TarapacáChile229 km (142 mi)E of epicenterSanta Barbara(pop: 2,430)II: Very weakDepartamento de PotosiBolivia233 km (145 mi)SW of epicenterTocopilla(pop: 25,400)II: Very weakRegion de AntofagastaChile233 km (145 mi)SW of epicenterSierra Gorda(pop: 1,070)II: Very weakProvincia de Antofagasta, Region de AntofagastaChile260 km (161 mi)NW of epicenterPisagua(pop: 443)II: Very weakProvincia del Tamarugal, TarapacáChile282 km (175 mi)NW of epicenterCamarones(pop: 606)II: Very weakArica, Region de Arica y ParinacotaChile284 km (176 mi)NE of epicenterChallapata(pop: 8,020)II: Very weakOruroBolivia307 km (191 mi)NE of epicenterPotosi(pop: 141,300)I: Not feltDepartamento de PotosiBolivia322 km (200 mi)SW of epicenterMejillones(pop: 14,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile384 km (239 mi)NE of epicenterSucre(pop: 224,800)I: Not feltDepartamento de ChuquisacaBoliviaNotes:(*) 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 GMT2026-04-18EpicenterAgency4.5± 0.13118 km73 mi±7.8 km02:08:08.40920 km N of Ollagüe, ChileEpicenter uncertainty: ± 6.4 kmUSGS (United States Geological Survey)4.3132 km82 mi02:08:0820 km al E de Mina Collahuasi29 km (18 mi) epicenter difference with USGSCSN (National Seismological Center (Centro Sismológico Nacional))4.43150 km93 mi±4.3 km02:08:08.16±0.21sChile-Bolivia Border Region33 km (21 mi) epicenter difference with USGSEpicenter uncertainty: ± 9.2 kmGFZ (German Research Centre for Geosciences)4.4150 km93 mi02:08:08Chile-Bolivia Border Region34 km (21 mi) epicenter difference with USGSRaspberryShake (RaspberryShake)4.3132 km82 mi02:08:08POTOSI, BOLIVIA29 km (18 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)4.5118 km73 mi02:08:08CHILE-BOLIVIA BORDER REGION0 km (0 mi) epicenter difference with USGSIRIS (Incorporated Research Institutions for Seismology)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)Apr 17, 2026 10:08 pm (GMT -4)26 minutes ago4.5118 km0 km - This quakeDepartamento de Potosi, BoliviaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquakeThe earthquake occurred 13 days after a magnitude 4.5 earthquake had hit on Saturday, Apr 4, 2026, at 11:48 am local time (America/Santiago GMT -4) in 95 km (59 mi) distance to the south:Mag. 4.5 earthquake 77 km northeast of Calama - Region de Antofagasta, Chile - Apr 4, 2026 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 7.4. It had occurred 1 year 39 weeks earlier, on Thursday, Jul 18, 2024, at 09:50 pm local time (America/Santiago GMT -4) in Region de Antofagasta, Chile:Mag. 7.4 earthquake 115 km southeast of Calama - Region de Antofagasta, Chile - Jul 18, 2024 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.2. It had occurred 75 years ago earlier, on Saturday, Dec 9, 1950, at 09:38 pm local time (Universal Time GMT +0) in Region de Antofagasta, Chile:Mag. 8.2 earthquake Provincia de El Loa - Region de Antofagasta, Chile - Dec 9, 1950 - 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 TimeMagDepthDistanceLocationDetailsMapApr 17, 07:55 pm (GMT -4)3.1125 km132 km (82 mi) to the S 47 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile I FELT ITInfoApr 16, 07:02 pm (GMT -4)3.992 km180 km (112 mi) to the S 31 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile I FELT ITInfoApr 16, 09:48 am (GMT -4)3.1124 km93 km (58 mi) to the SW 80 km north of Calama, Provincia de El Loa, Region de Antofagasta, Chile I FELT ITInfoApr 16, 07:46 am (GMT -4)3.280 km242 km (150 mi) to the SWProvincia de Antofagasta, 71 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, Chile I FELT ITInfoApr 16, 03:28 am (GMT -4)3.9100 km230 km (143 mi) to the SProvincia de Antofagasta, 65 km south of Calama, Provincia de El Loa, Region de Antofagasta, Chile I FELT ITInfoApr 4, 11:48 am (Santiago)4.5115 km95 km (59 mi) to the S 77 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoApr 2, 03:48 pm (Santiago)4.3102 km129 km (80 mi) to the SW 43 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoApr 1, 04:05 pm (Santiago)4.5131 km103 km (64 mi) to the S 69 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 6, 2025 01:21 pm (Santiago)6.194 km275 km (171 mi) to the S 138 km east of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, Chile 28 reportsInfoJul 18, 2024 09:50 pm (Santiago)7.4145 km232 km (144 mi) to the S 20 km al S de San Pedro de Atacama 170 reportsInfoJul 27, 2022 02:58 pm (Santiago)6.2112 km132 km (82 mi) to the S 46 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 38 reportsInfoApr 20, 2022 07:19 am (Santiago)5.7102 km210 km (130 mi) to the S 87 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 13 reportsInfoDec 14, 2020 03:20 pm (Universal Time)5.810 km77 km (48 mi) to the S 99 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 17 reportsInfoJun 3, 2020 03:35 am (Santiago)6.7100 km238 km (148 mi) to the S Northern Chile 81 reportsInfoOct 6, 2019 07:40 am (Santiago)5.7101 km106 km (66 mi) to the S 75 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 5 reportsInfoJan 11, 2017 06:58 pm (Santiago)5.768 km245 km (152 mi) to the SW Northern Chile 15 reportsInfoNov 1, 2015 11:16 am (Santiago)5.8104 km263 km (163 mi) to the S 57 km south of San Pedro de Atacama, Provincia de El Loa, Region de Antofagasta, Chile 8 reportsInfoJun 10, 2015 09:52 am (Santiago)6.0121 km161 km (100 mi) to the S Northern Chile 5 reportsInfoApr 2, 2014 09:43 pm (GMT -5)7.722 km239 km (148 mi) to the WSouth Pacific Ocean, 54 km southwest of Iquique, Provincia de Iquique, Tarapacá, Chile 7 reportsInfoAug 23, 2013 04:34 am (Santiago)5.8111 km142 km (88 mi) to the S 40 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, Chile 3 reportsInfoJul 11, 2010 08:11 pm (Santiago)6.3115 km123 km (76 mi) to the S 81 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 4, 2010 06:39 pm (Santiago)6.3114 km132 km (82 mi) to the S 66 km northeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJan 5, 2008 03:29 am (Santiago)5.7103 km199 km (124 mi) to the S 61 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoNov 14, 2007 11:40 am (Santiago)7.740 km216 km (134 mi) to the SW Antofagasta, ChileInfoNov 14, 2006 07:22 pm (Santiago)5.7108 km248 km (154 mi) to the S 109 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoNov 17, 2005 03:26 pm (La Paz)6.8147 km151 km (94 mi) to the SDepartamento de Potosi, 460 km southwest of Sucre, BoliviaInfoJun 13, 2005 06:44 pm (Santiago)7.8116 km153 km (95 mi) to the NW 103 km east of Iquique, Provincia de Iquique, Tarapacá, ChileInfoJun 19, 2001 05:32 am (Santiago)6.0147 km193 km (120 mi) to the S Potosi, BoliviaInfoMay 12, 2000 03:43 pm (Jujuy)7.2225 km335 km (208 mi) to the SEDepartamento de Susques, 138 km northwest of San Salvador de Jujuy, Departamento de Doctor Manuel Belgrano, Jujuy Province, ArgentinaInfoNov 21, 1999 12:51 am (Santiago)5.9101 km96 km (60 mi) to the SW 80 km north of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 2, 1999 02:45 pm (Santiago)5.9111 km188 km (117 mi) to the S 52 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJan 30, 1998 08:16 am (Santiago)7.142 km377 km (234 mi) to the SW 35 km southeast of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoJan 22, 1997 10:15 pm (La Paz)7.1276 km283 km (176 mi) to the E Potosi, BoliviaInfoJul 30, 1995 01:11 am (Santiago)8.046 km331 km (206 mi) to the SW 36 km north of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoNov 13, 1993 10:59 pm (Santiago)5.8112 km173 km (108 mi) to the S 38 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 31, 1987 10:48 pm (Jujuy)7.0249 km286 km (177 mi) to the SEDepartamento de Rinconada, 52 km west of Abra Pampa, Departamento de Cochinoca, Jujuy Province, ArgentinaInfoMar 5, 1987 05:17 am (Santiago)7.662 km421 km (261 mi) to the SW 85 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoDec 11, 1984 08:22 pm (Santiago)6.492 km156 km (97 mi) to the S 34 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMay 14, 1979 07:04 pm (Santiago)5.985 km216 km (134 mi) to the SWProvincia de Antofagasta, 44 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJan 2, 1974 06:42 am (Santiago)6.4105 km167 km (104 mi) to the S 55 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoDec 20, 1967 10:25 pm (Santiago)7.345 km197 km (122 mi) to the SW 37 km northeast of Tocopilla, Provincia de Tocopilla, Region de Antofagasta, ChileInfoOct 30, 1960 05:32 pm (Santiago)6.867 km223 km (138 mi) to the S 65 km south of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoNov 29, 1957 06:19 pm (La Paz)7.7233 km160 km (100 mi) to the E Potosi, BoliviaInfoDec 6, 1953 11:05 pm (Santiago)7.40 km127 km (79 mi) to the S NorthernInfoDec 9, 1950 09:38 pm (Universal Time)8.2114 km328 km (204 mi) to the SProvincia de El Loa, 256 km east of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoDec 26, 1948 04:12 am (Santiago)7.00 km180 km (112 mi) to the SW 9.2 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoJul 13, 1936 11:12 am (Universal Time)7.535 km453 km (281 mi) to the SW 121 km south of Antofagasta, Provincia de Antofagasta, Region de Antofagasta, ChileInfoFeb 23, 1933 08:09 am (Universal Time)7.235 km210 km (130 mi) to the WSouth Pacific Ocean, 35 km south of Iquique, Provincia de Iquique, Tarapacá, ChileInfoOct 19, 1929 07:12 am (Santiago)6.865 km191 km (119 mi) to the S 63 km southeast of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoApr 28, 1926 11:13 am (Universal Time)7.190 km170 km (106 mi) to the S 90 km east of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoMar 28, 1922 03:58 am (Universal Time)7.2150 km31 km (19 mi) to the SEDepartamento de Potosi, 382 km southwest of Sucre, BoliviaInfoDec 23, 1916 09:24 am (Universal Time)6.875 km239 km (149 mi) to the SWProvincia de Tocopilla, 81 km southwest of Calama, Provincia de El Loa, Region de Antofagasta, ChileInfoAug 25, 1916 05:44 am (La Paz)7.50 km27 km (17 mi) to the E 282 km southwest of Potosi, Departamento de Potosi, BoliviaInfoOct 4, 1910 11:00 pm (Universal Time)7.2120 km132 km (82 mi) to the SW 51 km north of Calama, Provincia de El Loa, Region de Antofagasta, 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]