Moderate magnitude 4.1 earthquake at 15 km depth6 Oct 16:07 UTC: First to report: INETER after 4 minutes.6 Oct 16:08: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeOct 6, 2026 16:03:17 UTC - Local time at epicenterTuesday, Oct 6, 2026, at 10:03 am (GMT -6)Statusconfirmed (manually revised)Magnitude4.09Depth15 kmEpicenter latitude / longitude10.866°N / 86.794°WNicaraguaAlso near: Costa Rica 96 km (60 mi) awaySeismic antipode10.866°S / 93.206°EShaking intensityIV Light shaking near epicenterFelt1 reportPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoMombacho (140 km / 87 mi)Weather at epicenter at time of quakeScattered Clouds 28.7°C (84 F), humidity: 77%, wind: 5 m/s (10 kts) from ENEEstimated 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 energy13 minutes ago reported feltOct 6, 2026 16:03 GMT / Oct 6, 2026 10:03 am (GMT -6)Lat / Lng: 10.866 / -86.794: Off Coast OF Costa RicaSource: EMSCOther sources: INETER: 4.1 / 15 kmDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23415822',10.86600,-86.79400,'13 minutes ago: Mag. 4.1, Off Coast OF Costa Rica',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 NicaraguaNearby placesThe closest larger town where the quake might have been felt is Masachapa, a town with 5,000 inhabitants in Nicaragua, in 107 km (66 mi) distance north of the epicenter. People likely experienced very weak shaking there. In the capital of Costa Rica, San Jose, 314 km (195 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(*)RegionCountry107 km (66 mi)N of epicenterMasachapa(pop: 5,000)II: Very weakDepartamento de ManaguaNicaragua110 km (68 mi)NE of epicenterSan Juan del Sur(pop: 7,790)II: Very weakDepartamento de RivasNicaragua111 km (69 mi)NE of epicenterEl Rosario(pop: 2,990)II: Very weakDepartamento de CarazoNicaragua113 km (70 mi)NE of epicenterTola(pop: 2,640)II: Very weakDepartamento de RivasNicaragua116 km (72 mi)N of epicenterSan Rafael del Sur(pop: 29,800)II: Very weakDepartamento de ManaguaNicaragua116 km (72 mi)NE of epicenterSanta Teresa(pop: 5,790)II: Very weakDepartamento de CarazoNicaragua122 km (76 mi)SE of epicenterTamarindo(pop: 6,380)II: Very weakSanta Cruz, Provincia de GuanacasteCosta Rica123 km (77 mi)NE of epicenterRivas(pop: 30,000)II: Very weakDepartamento de RivasNicaragua126 km (78 mi)NE of epicenterDiriamba(pop: 35,000)II: Very weakDepartamento de CarazoNicaragua127 km (79 mi)NE of epicenterJinotepe(pop: 29,500)II: Very weakDepartamento de CarazoNicaragua128 km (79 mi)N of epicenterVilla El Carmen(pop: 5,220)II: Very weakDepartamento de ManaguaNicaragua128 km (79 mi)NE of epicenterNandaime(pop: 20,800)II: Very weakDepartamento de GranadaNicaragua129 km (80 mi)E of epicenterLa Cruz(pop: 4,320)II: Very weakProvincia de GuanacasteCosta Rica131 km (82 mi)E of epicenterSardinal(pop: 3,270)II: Very weakCarrillo, Provincia de GuanacasteCosta Rica133 km (82 mi)NE of epicenterSan Marcos(pop: 23,300)II: Very weakDepartamento de CarazoNicaragua136 km (84 mi)NE of epicenterEl Crucero(pop: 16,500)II: Very weakDepartamento de ManaguaNicaragua136 km (85 mi)NE of epicenterMasatepe(pop: 21,500)II: Very weakDepartamento de MasayaNicaragua138 km (86 mi)NE of epicenterDiriomo(pop: 10,100)II: Very weakDepartamento de GranadaNicaragua141 km (88 mi)NE of epicenterMoyogalpa(pop: 3,940)II: Very weakDepartamento de RivasNicaragua141 km (88 mi)E of epicenterBelen(pop: 2,720)II: Very weakCarrillo, Provincia de GuanacasteCosta Rica144 km (89 mi)NE of epicenterTicuantepe(pop: 13,200)II: Very weakDepartamento de ManaguaNicaragua145 km (90 mi)NE of epicenterMasaya(pop: 130,100)II: Very weakDepartamento de MasayaNicaragua145 km (90 mi)E of epicenterCardenas(pop: 1,200)II: Very weakMunicipio de Cardenas, Departamento de RivasNicaragua148 km (92 mi)N of epicenterPuerto Sandino(pop: 4,370)II: Very weakDepartamento de LeonNicaragua148 km (92 mi)SE of epicenterSanta Cruz(pop: 12,300)II: Very weakProvincia de GuanacasteCosta Rica150 km (93 mi)NE of epicenterGranada(pop: 89,400)II: Very weakDepartamento de GranadaNicaragua150 km (93 mi)E of epicenterLiberia(pop: 45,400)II: Very weakProvincia de GuanacasteCosta Rica152 km (94 mi)N of epicenterCiudad Sandino(pop: 50,000)II: Very weakDepartamento de ManaguaNicaragua153 km (95 mi)NE of epicenterManagua(pop: 973,100)II: Very weakDepartamento de ManaguaNicaragua154 km (96 mi)NE of epicenterAltagracia(pop: 2,770)II: Very weakDepartamento de RivasNicaragua157 km (98 mi)N of epicenterMateare(pop: 61,200)II: Very weakDepartamento de ManaguaNicaragua158 km (98 mi)N of epicenterNagarote(pop: 26,300)II: Very weakDepartamento de LeonNicaragua160 km (99 mi)NE of epicenterTisma(pop: 5,180)II: Very weakDepartamento de MasayaNicaragua166 km (103 mi)NE of epicenterTipitapa(pop: 50,000)II: Very weakDepartamento de ManaguaNicaragua167 km (104 mi)SE of epicenterNicoya(pop: 15,300)II: Very weakProvincia de GuanacasteCosta Rica175 km (109 mi)SE of epicenterHojancha(pop: 1,820)II: Very weakProvincia de GuanacasteCosta Rica177 km (110 mi)SE of epicenterSamara(pop: 1,070)II: Very weakNicoya, Provincia de GuanacasteCosta Rica208 km (129 mi)NE of epicenterJuigalpa(pop: 50,000)I: Not feltDepartamento de ChontalesNicaragua219 km (136 mi)NE of epicenterSan Francisco de Cuapa(pop: 2,400)I: Not feltDepartamento de ChontalesNicaragua314 km (195 mi)E of epicenterSan Jose(pop: 335,000)I: Not feltSan Jose, Provincia de San JoseCosta RicaNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (1)So far, we have received 1 report for this quake from Peru.It came from near Cusco, a city with more than 430,000 inhabitants in 3,169 km (1,969 mi) distance southeast of the epicenter, Peru.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.Contribute:Leave a comment if you find a particular report interesting or want to add to it.Flag as inappropriate.Mark as helpful or interesting.Send your own user report!TranslateOcéano / Strong shaking (MMI VI) : Comerciante List of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsCusco, Departamento de Cusco, Peru(Pop.: 428,450)3,169 km (1,969 mi)SE of epicenterVI: Strong shaking1Note: Only reports with latitude/longitude coordinate positions given (1 in total) could be used for statistics.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!Get the Android appI didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.Compare 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 GMT2026-10-6EpicenterAgency4.0915 km9.3 mi16:03:17OFF COAST OF COSTA RICAEMSC (European-Mediterranean Seismological Centre)4.115 km9.3 mi16:03:1792 Km al oeste de Caba Santa Elena, Costa Rica0 km (0 mi) epicenter difference with EMSCINETERAftershocks 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)Oct 6, 2026 10:03 am (GMT -6)13 minutes ago4.115 km0 km - This quakeOff Coast OF Costa RicaMain 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 501 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 6 or higher: 0.25 quakes per year (or 1 quake every 4 years)Mag. 5 or higher: 3.2 quakes per yearMag. 4 or higher: 76 quakes per year (or 6.3 quakes per month)Mag. 3 or higher: 359 quakes per year (or 29.9 quakes per month)Mag. 2 or higher: 499 quakes per year (or 42 quakes per month)Mag. 1 or higher: 501 quakes per year (or 42 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 4 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquake