Moderate mag. 4.1 earthquake - 206 km west of Villazon, Departamento de Potosi, Bolivia, on Wednesday, Jul 29, 2026, at 08:21 am (Universal Time)

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The quake had a moderate depth of 182 km (113 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Chile | Quakes in Bolivia | Quakes in Argentina | Region de Antofagasta | Departamento de Potosi | Jujuy ProvinceHint: Click on the image to see different maps of this quake!Moderate magnitude 4.1 earthquake at 182 km depth29 Jul 08:29 UTC: First to report: EMSC after 8 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 29, 2026 08:21:14 UTC - Local time at epicenterWednesday, Jul 29, 2026, at 04:21 am (America/La Paz GMT -4)StatusconfirmedMagnitude4.09Depth182 kmEpicenter latitude / longitude22.28°S / 67.58°WDepartamento de Potosi, BoliviaAlso near: Chile 35 km (22 mi) away | Argentina 63 km (39 mi) awaySeismic antipode22.28°N / 112.42°EChinaShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoUturuncu (41 km / 25 mi)Weather at epicenter at time of quakeClear Sky -7.2°C (19 F), humidity: 25%, wind: 2 m/s (3 kts) from WNWEstimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | equivalent to ONE quake of magnitude 4.1 | about seismic energy17 minutes agoJul 29, 2026 08:21 GMT / Jul 29, 2026 04:21 am (La Paz time)Lat / Lng: -22.28 / -67.58: Potosi, BoliviaSource: EMSCOther sources: CSN: 4.1 / 182 km, RaspberryShake: 4.1 / 182 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23225963',-22.28000,-67.58000,'17 minutes ago: Mag. 4.1, 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+="&notFelt=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 San Pedro de Atacama, a town with 11,000 inhabitants in Chile, in 95 km (59 mi) distance to the southwest, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry95 km (59 mi)SW of epicenterSan Pedro de Atacama(pop: 11,000)I: Not feltProvincia de El Loa, Region de AntofagastaChile119 km (74 mi)N of epicenterCulpina K(pop: 71)I: Not feltDepartamento de PotosiBolivia140 km (87 mi)W of epicenterCalama(pop: 166,300)I: Not feltProvincia de El Loa, Region de AntofagastaChile176 km (109 mi)SE of epicenterSusques(pop: 1,140)I: Not feltJujuy ProvinceArgentina181 km (112 mi)NE of epicenterPorco(pop: 5,960)I: Not feltDepartamento de PotosiBolivia191 km (119 mi)W of epicenterSierra Gorda(pop: 1,070)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile200 km (124 mi)E of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina205 km (128 mi)NE of epicenterAtocha(pop: 1,830)I: Not feltDepartamento de PotosiBolivia205 km (128 mi)E of epicenterLa Quiaca(pop: 14,800)I: Not feltDepartamento de Yavi, Jujuy ProvinceArgentina206 km (128 mi)E of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia213 km (133 mi)NE of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia214 km (133 mi)W of epicenterMaria Elena(pop: 7,530)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile217 km (135 mi)N of epicenterUyuni(pop: 10,300)I: Not feltDepartamento de PotosiBolivia219 km (136 mi)NE of epicenterSanta Barbara(pop: 2,430)I: Not feltDepartamento de PotosiBolivia221 km (137 mi)SE of epicenterEl Aguilar(pop: 3,660)I: Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina230 km (143 mi)N of epicenterColchani(pop: 12,000)I: Not feltDepartamento de PotosiBolivia251 km (156 mi)SE of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina251 km (156 mi)SE of epicenterSan Antonio de los Cobres(pop: 4,000)I: Not feltDepartamento de Los Andes, Salta ProvinceArgentina257 km (159 mi)NE of epicenterSantiago de Cotagaita(pop: 1,900)I: Not feltDepartamento de PotosiBolivia266 km (165 mi)SE of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina269 km (167 mi)NW of epicenterPica(pop: 9,300)I: Not feltProvincia del Tamarugal, TarapacáChile270 km (168 mi)W of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile293 km (182 mi)SE of epicenterSanta Rosa de Tastil(pop: 2,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina306 km (190 mi)E of epicenterTarija(pop: 159,300)I: Not feltDepartamento de TarijaBolivia306 km (190 mi)NE of epicenterCamargo(pop: 4,720)I: Not feltProvincia Nor Cinti, Departamento de ChuquisacaBolivia308 km (191 mi)W of epicenterMejillones(pop: 14,100)I: Not feltProvincia de Antofagasta, Region de AntofagastaChile316 km (196 mi)SE of epicenterSan Salvador de Jujuy(pop: 258,000)I: Not feltDepartamento de Doctor Manuel Belgrano, Jujuy ProvinceArgentina321 km (199 mi)NW of epicenterPozo Almonte(pop: 16,900)I: Not feltProvincia del Tamarugal, TarapacáChile326 km (203 mi)SW of epicenterAntofagasta(pop: 401,100)I: Not feltRegion de AntofagastaChile327 km (203 mi)SE of epicenterPalpala(pop: 48,200)I: Not feltDepartamento de Palpala, Jujuy ProvinceArgentina332 km (206 mi)SE of epicenterLibertador General San Martin(pop: 49,300)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina339 km (211 mi)SE of epicenterFraile Pintado(pop: 13,700)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina344 km (214 mi)NW of epicenterAlto Hospicio(pop: 142,100)I: Not feltProvincia de Iquique, TarapacáChile352 km (219 mi)NW of epicenterIquique(pop: 199,600)I: Not feltTarapacáChile352 km (219 mi)SE of epicenterSan Pedro de Jujuy(pop: 58,400)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina355 km (221 mi)NE of epicenterPotosi(pop: 141,300)I: Not feltDepartamento de PotosiBolivia355 km (221 mi)NE of epicenterPotosi(pop: 141,300)I: Not feltDepartamento de PotosiBolivia357 km (222 mi)SE of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina375 km (233 mi)NE of epicenterBetanzos(pop: 4,850)I: Not feltDepartamento de PotosiBolivia434 km (270 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 GMT2026-07-29EpicenterAgency4.09182 km113 mi08:21:14POTOSI, BOLIVIAEMSC (European-Mediterranean Seismological Centre)4.1182 km113 mi08:21:1495 km al NE de San Pedro de Atacama0.5 km (0.3 mi) epicenter difference with EMSCCSN (National Seismological Center (Centro Sismológico Nacional))4.1182 km113 mi08:21:14Chile-Bolivia Border Region0.5 km (0.3 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: SAN PEDRO DE ATACAMA (AF01/C1 network) | Distance from quake: 97 km / 60 mi | Show on map | Station InfoSeismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Daracena (TA01/C1 network) | Distance from quake: 330 km / 205 mi | Show on map | Station InfoShow moreAftershocks 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 29, 2026 04:21 am (La Paz)17 minutes ago4.1182 km0 km - This quakePotosi, 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 205 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.08 quakes per year (or 1 quake every 12.7 years)Mag. 5 or higher: 1.89 quakes per yearMag. 4 or higher: 29.8 quakes per yearMag. 3 or higher: 141 quakes per year (or 11.7 quakes per month)Mag. 2 or higher: 206 quakes per year (or 17.1 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 10 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 10 to 15 years.Number of quakes per yearPrevious quakes in the same area of this earthquake