Light magnitude 3.7 earthquake at 238 km depth23 Oct 23:00 UTC: First to report: EMSC after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 23, 2026 22:56:23 UTC - Local time at epicenterFriday, Oct 23, 2026, at 06:56 pm (GMT -4)Statuspreliminary (automatic detection)Magnitude3.70Depth238 kmEpicenter latitude / longitude21.09°S / 68.15°WBoliviaAlso near: Chile 18 km (11 mi) awaySeismic antipode21.09°N / 111.85°EChinaShaking intensityNot feltPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoOllague (24 km / 15 mi)Weather at epicenter at time of quakeOvercast Clouds 11.3°C (52 F), humidity: 31%, wind: 6 m/s (12 kts) from SWEstimated seismic energy released2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) | equivalent to ONE quake of magnitude 3.7 | about seismic energy5 minutes agoOct 23, 2026 22:56 GMT / Oct 23, 2026 06:56 pm (GMT -4)Lat / Lng: -21.09 / -68.15: Potosi, BoliviaSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23460189',-21.09000,-68.15000,'5 minutes ago: Mag. 3.7, Potosi, Bolivia',html,'quakes-5-24.png',18,18,9,9,124]); 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 near the epicenter is Ollagüe, a town with 134 inhabitants in Chile, in 18.5 km (11 mi) distance to the southwest, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry18 km (11 mi)SW of epicenterOllagüe(pop: 134)I: Not feltProvincia de El Loa, Region de AntofagastaChile96 km (60 mi)W of epicenterHuatacondo(pop: 55)I: Not feltProvincia del Tamarugal, TarapacáChile98 km (61 mi)E of epicenterCulpina K(pop: 71)I: Not feltDepartamento de PotosiBolivia102 km (64 mi)E of epicenterSan Cristobal(pop: 75)I: Not feltDepartamento de PotosiBolivia140 km (87 mi)NW of epicenterPica(pop: 9,300)I: Not feltProvincia del Tamarugal, TarapacáChile154 km (96 mi)NE of epicenterColchani(pop: 12,000)I: Not feltDepartamento de PotosiBolivia155 km (96 mi)NE of epicenterUyuni(pop: 10,300)I: Not feltDepartamento de PotosiBolivia156 km (97 mi)W of epicenterColonia Pintados(pop: 143)I: Not feltProvincia del Tamarugal, TarapacáChile157 km (97 mi)SW of epicenterQuillagua(pop: 141)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile159 km (99 mi)NW of epicenterMamiña(pop: 319)I: Not feltProvincia del Tamarugal, TarapacáChile172 km (107 mi)SW of epicenterCalama(pop: 166,300)I: Not feltProvincia de El Loa, Region de AntofagastaChile178 km (110 mi)NW of epicenterLa Tirana(pop: 837)I: Not feltProvincia del Tamarugal, TarapacáChile179 km (111 mi)E of epicenterPorco(pop: 5,960)I: Not feltDepartamento de PotosiBolivia194 km (120 mi)NW of epicenterPozo Almonte(pop: 16,900)I: Not feltProvincia del Tamarugal, TarapacáChile198 km (123 mi)NW of epicenterBaquedano(pop: 587)I: Not feltProvincia del Tamarugal, TarapacáChile201 km (125 mi)E of epicenterAtocha(pop: 1,830)I: Not feltDepartamento de PotosiBolivia203 km (126 mi)S of epicenterSan Pedro de Atacama(pop: 11,000)I: Not feltProvincia de El Loa, Region de AntofagastaChile208 km (129 mi)N of epicenterColchane(pop: 1,730)I: Not feltProvincia del Tamarugal, TarapacáChile208 km (129 mi)NW of epicenterHuara(pop: 2,860)I: Not feltProvincia del Tamarugal, TarapacáChile209 km (130 mi)SW of epicenterMaria Elena(pop: 7,530)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile216 km (134 mi)W of epicenterChanavayita(pop: 603)I: Not feltProvincia de Iquique, TarapacáChile219 km (136 mi)E of epicenterSanta Barbara(pop: 2,430)I: Not feltDepartamento de PotosiBolivia223 km (139 mi)NW of epicenterAlto Hospicio(pop: 142,100)I: Not feltProvincia de Iquique, TarapacáChile230 km (143 mi)NW of epicenterIquique(pop: 199,600)I: Not feltTarapacáChile234 km (145 mi)SW of epicenterSierra Gorda(pop: 1,070)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile238 km (148 mi)NW of epicenterCamina(pop: 1,340)I: Not feltProvincia del Tamarugal, TarapacáChile239 km (149 mi)SW of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile255 km (158 mi)E of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia260 km (162 mi)E of epicenterSantiago de Cotagaita(pop: 1,900)I: Not feltDepartamento de PotosiBolivia283 km (176 mi)NE of epicenterChallapata(pop: 8,020): Not feltOruroBolivia287 km (178 mi)SE of epicenterVillazon(pop: 30,300): Not feltDepartamento de PotosiBolivia287 km (178 mi)SE of epicenterLa Quiaca(pop: 14,800): Not feltDepartamento de Yavi, Jujuy ProvinceArgentina301 km (187 mi)NE of epicenterPotosi(pop: 141,300): Not feltDepartamento de PotosiBolivia312 km (194 mi)SE of epicenterAbra Pampa(pop: 9,430): Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina316 km (196 mi)SE of epicenterSusques(pop: 1,140): Not feltJujuy ProvinceArgentina326 km (202 mi)SW of epicenterMejillones(pop: 14,100): Not feltProvincia de Antofagasta, Region de AntofagastaChile329 km (204 mi)NE of epicenterBetanzos(pop: 4,850): Not feltDepartamento de PotosiBolivia347 km (216 mi)SE of epicenterEl Aguilar(pop: 3,660): Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina348 km (216 mi)NE of epicenterColquechaca(pop: 1,710): Not feltDepartamento de PotosiBolivia379 km (235 mi)NE of epicenterSucre(pop: 224,800): 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 GMT2026-10-23EpicenterAgency3.7238 km148 mi22:56:23POTOSI, BOLIVIAEMSC (European-Mediterranean Seismological Centre)Earthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 1,300 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: 0.09 quakes per year (or 1 quake every 11.5 years)Mag. 5 or higher: 3.3 quakes per yearMag. 4 or higher: 83 quakes per year (or 6.9 quakes per month)Mag. 3 or higher: 537 quakes per year (or 45 quakes per month)Mag. 2 or higher: 1,300 quakes per year (or 3.6 quakes per day)Mag. 1 or higher: 1,300 quakes per year (or 3.6 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