Moderate magnitude 4.1 earthquake at 220 km depth28 Feb 08:35 UTC: First to report: EMSC after 7 minutes.28 Feb 08:36: Magnitude recalculated from 4.3 to 4.1.I didn't feel itI felt this quakeEarthquake detailsDate & timeFeb 28, 2026 08:29:09 UTC - Local time at epicenterSaturday, Feb 28, 2026, at 08:29 am (Universal Time GMT +0)Statuspreliminary (automatic detection)Magnitude4.1Depth220 kmEpicenter latitude / longitude23.92°S / 67.16°WDepartamento de Los Andes, Salta Province, ArgentinaAlso near: Chile 14.4 km (9 mi) awaySeismic antipode23.92°N / 112.84°EChinaShaking intensityNot feltPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoLaco (37 km / 23 mi)Weather at epicenter at time of quakeClear Sky 6.4°C (43 F), humidity: 45%, 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 energy7 minutes agoFeb 28, 2026 08:29 GMT / Feb 28, 2026 08:29 am (Universal Time)Lat / Lng: -23.92 / -67.16: Salta, ArgentinaSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22760386',-23.92000,-67.16000,'7 minutes ago: Mag. 4.1, Salta, Argentina',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 ArgentinaNearby placesThe closest larger town near the epicenter is San Antonio de los Cobres, a town with 4,000 inhabitants in Argentina, in 92 km (57 mi) distance to the east, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry92 km (57 mi)E of epicenterSan Antonio de los Cobres(pop: 4,000)I: Not feltDepartamento de Los Andes, Salta ProvinceArgentina99 km (62 mi)NE of epicenterSusques(pop: 1,140)I: Not feltJujuy ProvinceArgentina136 km (85 mi)SE of epicenterSanta Rosa de Tastil(pop: 2,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina155 km (96 mi)NW of epicenterSan Pedro de Atacama(pop: 2,000)I: Not feltProvincia de El Loa, Region de AntofagastaChile167 km (104 mi)SE of epicenterCachi(pop: 2,190)I: Not feltSalta ProvinceArgentina170 km (106 mi)NE of epicenterEl Aguilar(pop: 3,660)I: Not feltDepartamento de Humahuaca, Jujuy ProvinceArgentina184 km (114 mi)E of epicenterTilcara(pop: 5,640)I: Not feltJujuy ProvinceArgentina189 km (118 mi)SE of epicenterCampo Quijano(pop: 5,000)I: Not feltDepartamento de Rosario de Lerma, Salta ProvinceArgentina192 km (119 mi)E of epicenterSan Salvador de Jujuy(pop: 258,000)I: Not feltDepartamento de Doctor Manuel Belgrano, Jujuy ProvinceArgentina200 km (124 mi)NE of epicenterAbra Pampa(pop: 9,430)I: Not feltDepartamento de Cochinoca, Jujuy ProvinceArgentina201 km (125 mi)E of epicenterPalpala(pop: 48,200)I: Not feltDepartamento de Palpala, Jujuy ProvinceArgentina201 km (125 mi)NE of epicenterHumahuaca(pop: 11,400)I: Not feltJujuy ProvinceArgentina202 km (125 mi)SE of epicenterSalta(pop: 520,700)I: Not feltDepartamento Capital, Salta ProvinceArgentina212 km (132 mi)SE of epicenterEl Carril(pop: 9,780)I: Not feltDepartamento de Chicoana, Salta ProvinceArgentina227 km (141 mi)E of epicenterLa Mendieta(pop: 3,810)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina236 km (146 mi)E of epicenterSan Pedro de Jujuy(pop: 58,400)I: Not feltDepartamento de San Pedro, Jujuy ProvinceArgentina240 km (149 mi)E of epicenterFraile Pintado(pop: 13,700)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina241 km (150 mi)E of epicenterLibertador General San Martin(pop: 49,300)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina243 km (151 mi)NW of epicenterCalama(pop: 166,300)I: Not feltProvincia de El Loa, Region de AntofagastaChile257 km (160 mi)E of epicenterSanta Clara(pop: 4,880)I: Not feltDepartamento de Santa Barbara, Jujuy ProvinceArgentina258 km (160 mi)NE of epicenterLa Quiaca(pop: 14,800)I: Not feltDepartamento de Yavi, Jujuy ProvinceArgentina259 km (161 mi)NE of epicenterVillazon(pop: 30,300)I: Not feltDepartamento de PotosiBolivia262 km (163 mi)E of epicenterCaimancito(pop: 5,400)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina267 km (166 mi)SE of epicenterCafayate(pop: 11,800)I: Not feltSalta ProvinceArgentina275 km (171 mi)E of epicenterYuto(pop: 7,730)I: Not feltDepartamento de Ledesma, Jujuy ProvinceArgentina290 km (180 mi)E of epicenterPalma Sola(pop: 5,320)I: Not feltDepartamento de Santa Barbara, Jujuy ProvinceArgentina301 km (187 mi)SE of epicenterEl Galpon(pop: 8,360)I: Not feltDepartamento de Metan, Salta ProvinceArgentina302 km (188 mi)E of epicenterOrán(pop: 74,100)I: Not feltSalta ProvinceArgentina310 km (193 mi)NW of epicenterMaria Elena(pop: 4,900)I: Not feltProvincia de Tocopilla, Region de AntofagastaChile313 km (194 mi)NE of epicenterTupiza(pop: 22,200)I: Not feltDepartamento de PotosiBolivia314 km (195 mi)E of epicenterLas Lajitas(pop: 9,150)I: Not feltDepartamento de Anta, Salta ProvinceArgentina317 km (197 mi)NE of epicenterBermejo(pop: 35,400)I: Not feltDepartamento de TarijaBolivia319 km (198 mi)SE of epicenterTrancas(pop: 6,660)I: Not feltTucuman ProvinceArgentina322 km (200 mi)E of epicenterEmbarcacion(pop: 24,000)I: Not feltGeneral Jose de San Martin, Salta ProvinceArgentina335 km (208 mi)SE of epicenterJoaquin V. Gonzalez(pop: 19,200)I: Not feltDepartamento de Metan, Salta ProvinceArgentina348 km (216 mi)SE of epicenterEl Quebrachal(pop: 10,200)I: Not feltDepartamento de Anta, Salta ProvinceArgentina364 km (226 mi)NE of epicenterTarija(pop: 159,300)I: Not feltDepartamento de TarijaBolivia367 km (228 mi)SE of epicenterTafi Viejo(pop: 48,500)I: Not feltTafi Viejo, Tucuman ProvinceArgentina372 km (231 mi)NW of epicenterTocopilla(pop: 25,400)I: Not feltRegion de AntofagastaChile400 km (248 mi)SW of epicenterDiego de Almagro(pop: 13,900)I: Not feltChanaral, Region de AtacamaChileNotes:(*) 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 GMT2026-02-28EpicenterAgency4.09220 km137 mi08:29:09SALTA, ARGENTINAEMSC (European-Mediterranean Seismological Centre)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 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)Feb 28, 2026 08:29 am (Universal Time)7 minutes ago4.1220 km0 km - This quakeDepartamento de Los Andes, 202 km NW of Salta, Departamento Capital, Salta Province, ArgentinaMain 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 1,100 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: 0.32 quakes per year (or 1 quake every 3.2 years)Mag. 5 or higher: 3.6 quakes per yearMag. 4 or higher: 140 quakes per year (or 11.6 quakes per month)Mag. 3 or higher: 866 quakes per year (or 72 quakes per month)Mag. 2 or higher: 1,100 quakes per year (or 3 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