Moderate magnitude 4.2 earthquake at 186 km depth29 Aug 23:29 UTC: First to report: EMSC after 3 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 29, 2026 23:26:15 UTC - Local time at epicenterSaturday, Aug 29, 2026, at 07:26 pm (America/La Paz GMT -4)Statusconfirmed (manually revised)Magnitude4.20Depth186 kmEpicenter latitude / longitude22.74°S / 67.55°WProvincia de El Loa, Departamento de Potosi, BoliviaAlso near: Chile 17 km (11 mi) away | Argentina 39 km (24 mi) awaySeismic antipode22.74°N / 112.45°EChinaShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoGuayaques (17 km / 11 mi)Weather at epicenter at time of quakeClear Sky -2°C (28 F), humidity: 19%, wind: 5 m/s (10 kts) from WEstimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | equivalent to ONE quake of magnitude 4.2 | about seismic energy13 minutes ago reported feltAug 29, 2026 23:26 GMT / Aug 29, 2026 07:26 pm (La Paz time)Lat / Lng: -22.74 / -67.55: Potosi, BoliviaSource: EMSCOther sources: RaspberryShake: 4.2 / 172 km, CSN: 4.2 / 172 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23322315',-22.74000,-67.55000,'13 minutes ago: Mag. 4.2, 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 69 km (43 mi) distance west of the epicenter. People likely experienced very weak shaking there. In the capital of Bolivia, Sucre, 476 km (296 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(*)RegionCountry69 km (43 mi)W of epicenterSan Pedro de Atacama(pop: 11,000)II: Very weakProvincia de El Loa, Region de AntofagastaChile141 km (88 mi)SE of epicenterSusques(pop: 1,140)I: Not feltJujuy ProvinceArgentina145 km (90 mi)W of epicenterCalama(pop: 166,300)I: Not feltProvincia de El Loa, Region de AntofagastaChile168 km (104 mi)N of epicenterCulpina K(pop: 71)I: Not feltDepartamento de PotosiBolivia182 km (113 mi)W of epicenterSierra Gorda(pop: 1,070)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile190 km (118 mi)E of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina199 km (123 mi)E of epicenterEl Aguilar(pop: 3,660)I: Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina207 km (129 mi)SE of epicenterSan Antonio de los Cobres(pop: 4,000)I: Not feltDepartamento de Los Andes, Salta ProvinceArgentina213 km (132 mi)E of epicenterLa Quiaca(pop: 14,800)I: Not feltDepartamento de Yavi, Jujuy ProvinceArgentina214 km (133 mi)E of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia220 km (137 mi)NE of epicenterPorco(pop: 5,960)I: Not feltDepartamento de PotosiBolivia221 km (138 mi)W of epicenterMaria Elena(pop: 7,530)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile231 km (144 mi)E of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina238 km (148 mi)NE of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia239 km (149 mi)SE of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina243 km (151 mi)NE of epicenterAtocha(pop: 1,830)I: Not feltDepartamento de PotosiBolivia250 km (156 mi)SE of epicenterSanta Rosa de Tastil(pop: 2,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina255 km (159 mi)NE of epicenterSanta Barbara(pop: 2,430)I: Not feltDepartamento de PotosiBolivia264 km (164 mi)N of epicenterUyuni(pop: 10,300)I: Not feltDepartamento de PotosiBolivia279 km (173 mi)N of epicenterColchani(pop: 12,000)I: Not feltDepartamento de PotosiBolivia281 km (175 mi)SE of epicenterSan Salvador de Jujuy(pop: 258,000)I: Not feltDepartamento de Doctor Manuel Belgrano, Jujuy ProvinceArgentina282 km (175 mi)W of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile290 km (180 mi)NE of epicenterSantiago de Cotagaita(pop: 1,900)I: Not feltDepartamento de PotosiBolivia292 km (181 mi)SE of epicenterPalpala(pop: 48,200)I: Not feltDepartamento de Palpala, Jujuy ProvinceArgentina299 km (186 mi)W of epicenterMejillones(pop: 14,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile306 km (190 mi)SE of epicenterLibertador General San Martin(pop: 49,300)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina308 km (192 mi)W of epicenterAntofagasta(pop: 401,100)I: Not feltRegion de AntofagastaChile311 km (193 mi)NW of epicenterPica(pop: 9,300)I: Not feltProvincia del Tamarugal, TarapacáChile311 km (193 mi)SE of epicenterFraile Pintado(pop: 13,700)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina316 km (196 mi)SE of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina320 km (199 mi)NE of epicenterTarija(pop: 159,300)I: Not feltDepartamento de TarijaBolivia320 km (199 mi)SE of epicenterSan Pedro de Jujuy(pop: 58,400)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina333 km (207 mi)SE of epicenterEl Carril(pop: 9,780)I: Not feltDepartamento de Chicoana, Salta ProvinceArgentina336 km (209 mi)NE of epicenterCamargo(pop: 4,720)I: Not feltProvincia Nor Cinti, Departamento de ChuquisacaBolivia360 km (224 mi)NW of epicenterPozo Almonte(pop: 16,900)I: Not feltProvincia del Tamarugal, TarapacáChile381 km (237 mi)NW of epicenterAlto Hospicio(pop: 142,100)I: Not feltProvincia de Iquique, TarapacáChile389 km (242 mi)NW of epicenterIquique(pop: 199,600)I: Not feltTarapacáChile397 km (247 mi)NE of epicenterPotosi(pop: 141,300)I: Not feltDepartamento de PotosiBolivia476 km (296 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 quake (2)So far, we have received 2 reports for 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.Translate309.8 km WSW of epicenter [Map] / not felt (reported through our app)384.3 km NW of epicenter [Map] / not felt (reported through our app)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 (*)I: Not felt2309–384 km (192–239 mi)347 km (215 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.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 GMT2026-08-29EpicenterAgency4.2186 km116 mi23:26:15POTOSI, BOLIVIAEMSC (European-Mediterranean Seismological Centre)4.2172 km107 mi23:26:17Chile-Bolivia Border Region30 km (19 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.2172 km107 mi23:26:1756 km al NE de San Pedro de Atacama30 km (19 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 (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Aug 29, 2026 07:26 pm (La Paz)13 minutes ago4.2186 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 302 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: 0.12 quakes per year (or 1 quake every 8.6 years)Mag. 5 or higher: 1.66 quakes per yearMag. 4 or higher: 36.1 quakes per year (or 3 quakes per month)Mag. 3 or higher: 216 quakes per year (or 18 quakes per month)Mag. 2 or higher: 302 quakes per year (or 25.2 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