Moderate magnitude 4.3 earthquake at 191 km depth29 Sep 18:27 UTC: First to report: EMSC after 6 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeSep 29, 2026 18:21:49 UTC - Local time at epicenterTuesday, Sep 29, 2026, at 02:21 pm (America/La Paz GMT -4)Statusconfirmed (manually revised)Magnitude4.30Depth191 kmEpicenter latitude / longitude22.22°S / 67.76°WProvincia de El Loa, Departamento de Potosi, BoliviaAlso near: Chile 16.9 km (11 mi) away | Argentina 83 km (52 mi) awaySeismic antipode22.22°N / 112.24°EChinaShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoPutana (39 km / 24 mi)Weather at epicenter at time of quakeOvercast Clouds 6.6°C (44 F), humidity: 39%, wind: 8 m/s (15 kts) from WSWEstimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) | equivalent to ONE quake of magnitude 4.3 | about seismic energy17 minutes agoSep 29, 2026 18:21 GMT / Sep 29, 2026 02:21 pm (La Paz time)Lat / Lng: -22.22 / -67.76: Potosi, BoliviaSource: EMSCOther sources: RaspberryShake: 4.5 / 191 km, CSN: 4.5 / 191 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23399642',-22.22000,-67.76000,'17 minutes ago: Mag. 4.3, Potosi, Bolivia',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 San Pedro de Atacama, a town with 11,000 inhabitants in Chile, in 89 km (55 mi) distance southwest of the epicenter. People likely experienced very weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry89 km (55 mi)SW of epicenterSan Pedro de Atacama(pop: 11,000)II: Very weakProvincia de El Loa, Region de AntofagastaChile123 km (76 mi)W of epicenterCalama(pop: 166,300)II: Very weakProvincia de El Loa, Region de AntofagastaChile177 km (110 mi)SW of epicenterSierra Gorda(pop: 1,070)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile189 km (117 mi)NE of epicenterPorco(pop: 5,960)I: Not feltDepartamento de PotosiBolivia194 km (120 mi)SE of epicenterSusques(pop: 1,140)I: Not feltJujuy ProvinceArgentina196 km (122 mi)W of epicenterMaria Elena(pop: 7,530)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile214 km (133 mi)NE of epicenterAtocha(pop: 1,830)I: Not feltDepartamento de PotosiBolivia218 km (136 mi)NE of epicenterUyuni(pop: 10,300)I: Not feltDepartamento de PotosiBolivia219 km (136 mi)E of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina223 km (139 mi)E of epicenterLa Quiaca(pop: 14,800)I: Not feltDepartamento de Yavi, Jujuy ProvinceArgentina224 km (139 mi)E of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia228 km (142 mi)E of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia229 km (142 mi)NE of epicenterSanta Barbara(pop: 2,430)I: Not feltDepartamento de PotosiBolivia230 km (143 mi)N of epicenterColchani(pop: 12,000)I: Not feltDepartamento de PotosiBolivia240 km (149 mi)SE of epicenterEl Aguilar(pop: 3,660)I: Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina252 km (156 mi)W of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile252 km (157 mi)NW of epicenterPica(pop: 9,300)I: Not feltProvincia del Tamarugal, TarapacáChile267 km (166 mi)SE of epicenterSan Antonio de los Cobres(pop: 4,000)I: Not feltDepartamento de Los Andes, Salta ProvinceArgentina267 km (166 mi)NE of epicenterSantiago de Cotagaita(pop: 1,900)I: Not feltDepartamento de PotosiBolivia271 km (168 mi)SE of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina286 km (177 mi)SE of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina293 km (182 mi)W of epicenterMejillones(pop: 14,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile303 km (188 mi)NW of epicenterPozo Almonte(pop: 16,900)I: Not feltProvincia del Tamarugal, TarapacáChile314 km (195 mi)SW of epicenterAntofagasta(pop: 401,100)I: Not feltRegion de AntofagastaChile317 km (197 mi)NE of epicenterCamargo(pop: 4,720)I: Not feltProvincia Nor Cinti, Departamento de ChuquisacaBolivia322 km (200 mi)E of epicenterTarija(pop: 159,300)I: Not feltDepartamento de TarijaBolivia324 km (201 mi)NW of epicenterHuara(pop: 2,860)I: Not feltProvincia del Tamarugal, TarapacáChile326 km (202 mi)NW of epicenterAlto Hospicio(pop: 142,100)I: Not feltProvincia de Iquique, TarapacáChile334 km (207 mi)NW of epicenterIquique(pop: 199,600)I: Not feltTarapacáChile334 km (208 mi)SE of epicenterSan Salvador de Jujuy(pop: 258,000)I: Not feltDepartamento de Doctor Manuel Belgrano, Jujuy ProvinceArgentina345 km (214 mi)SE of epicenterPalpala(pop: 48,200)I: Not feltDepartamento de Palpala, Jujuy ProvinceArgentina352 km (218 mi)SE of epicenterLibertador General San Martin(pop: 49,300)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina358 km (223 mi)SE of epicenterFraile Pintado(pop: 13,700)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina360 km (224 mi)NE of epicenterPotosi(pop: 141,300)I: Not feltDepartamento de PotosiBolivia369 km (229 mi)SE of epicenterCampo Quijano(pop: 5,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina371 km (230 mi)SE of epicenterSan Pedro de Jujuy(pop: 58,400)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina374 km (232 mi)SE of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina381 km (237 mi)NE of epicenterBetanzos(pop: 4,850)I: Not feltDepartamento de PotosiBolivia392 km (244 mi)SE of epicenterEl Carril(pop: 9,780)I: Not feltDepartamento de Chicoana, Salta ProvinceArgentinaNotes:(*) 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 GMT2026-09-29EpicenterAgency4.3191 km118 mi18:21:49POTOSI, BOLIVIAEMSC (European-Mediterranean Seismological Centre)4.5191 km119 mi18:21:49Chile-Bolivia Border Region0.5 km (0.3 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.5191 km119 mi18:21:4989 km al NE de San Pedro de Atacama0.5 km (0.3 mi) epicenter difference with EMSCCSN (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 2 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 29, 2026 02:21 pm (La Paz)17 minutes ago4.3191 km0 km - This quakeDepartamento de Potosi, BoliviaMain 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 522 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: 0.21 quakes per year (or 1 quake every 4.9 years)Mag. 5 or higher: 3 quakes per yearMag. 4 or higher: 52 quakes per year (or 4.3 quakes per month)Mag. 3 or higher: 270 quakes per year (or 22.5 quakes per month)Mag. 2 or higher: 522 quakes per year (or 43 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 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