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The quake had a very shallow depth of 5 km (3.1 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Costa Rica | Provincia de Puntarenas | Provincia de Guanacaste | Provincia de San JoseHint: Click on the image to see different maps of this quake!Strong magnitude 5.5 earthquake at 5 km depth10 Aug 21:00 UTC: First to report: INETER after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 10, 2026 20:55:00 UTC - Local time at epicenter2026-08-10 14:55:00Statusunconfirmed (uncertain whether an earthquake with these data happened)Magnitude5.5Depth5 kmEpicenter latitude / longitude8.521°N / 85.444°WCosta RicaSeismic antipode8.521°S / 94.556°EShaking intensityVI Strong shaking near epicenterFelt0 reportsPrimary data sourceINETERNearest volcanoCerro San Miguel (185 km / 115 mi)Estimated seismic energy released1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) | equivalent to ONE quake of magnitude 5.5 | about seismic energy6 minutes ago reported feltAug 10, 2026 20:55 GMT / 2026-08-10 14:55:00Lat / Lng: 8.521 / -85.444: 151 km Al Suroeste De Jacó, Costa RicaSource: INETERDetail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23261283',8.52100,-85.44400,'6 minutes ago: Mag. 5.5, 151 km Al Suroeste De Jacó, Costa Rica',html,'quakes-7-24.png',30,30,15,15,126]); 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 Costa RicaNearby placesThe closest larger town where the quake might have been felt is Jaco, a town with 4,100 inhabitants in Costa Rica, in 151 km (94 mi) distance northeast of the epicenter. People likely experienced weak shaking there. In the capital of Costa Rica, San Jose, 217 km (135 mi) away from the epicenter, the earthquake was probably felt as weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry151 km (94 mi)NE of epicenterJaco(pop: 4,090)III: WeakGarabito, Provincia de PuntarenasCosta Rica175 km (109 mi)N of epicenterPuntarenas(pop: 35,700)III: WeakProvincia de PuntarenasCosta Rica178 km (111 mi)NE of epicenterChacarita(pop: 26,400)III: WeakPuntarenas, Provincia de PuntarenasCosta Rica181 km (113 mi)N of epicenterNicoya(pop: 15,300)III: WeakProvincia de GuanacasteCosta Rica185 km (115 mi)NE of epicenterEsparza(pop: 15,600)III: WeakProvincia de PuntarenasCosta Rica190 km (118 mi)NE of epicenterTejar(pop: 22,400)III: WeakAcosta, Provincia de San JoseCosta Rica193 km (120 mi)NE of epicenterSan Rafael Abajo(pop: 27,400)III: WeakPuriscal, Provincia de San JoseCosta Rica210 km (131 mi)NE of epicenterAserri(pop: 25,900)III: WeakAserri, Provincia de San JoseCosta Rica212 km (132 mi)NE of epicenterSan Juan de Dios(pop: 15,500)III: WeakDesamparados, Provincia de San JoseCosta Rica212 km (132 mi)NE of epicenterSan Rafael(pop: 25,400)III: WeakEscazu, Provincia de San JoseCosta Rica213 km (132 mi)NE of epicenterSan Felipe(pop: 25,000)III: WeakAlajuelita, Provincia de San JoseCosta Rica213 km (132 mi)NE of epicenterSan Rafael Arriba(pop: 15,100)III: WeakDesamparados, Provincia de San JoseCosta Rica214 km (133 mi)NE of epicenterSan Miguel(pop: 28,800)III: WeakDesamparados, Provincia de San JoseCosta Rica214 km (133 mi)NE of epicenterSan Isidro(pop: 34,900)III: WeakPerez Zeledon, Provincia de San JoseCosta Rica214 km (133 mi)NE of epicenterAlajuela(pop: 47,500)III: WeakProvincia de AlajuelaCosta Rica216 km (134 mi)N of epicenterCanas(pop: 20,300)III: WeakCanas, Provincia de GuanacasteCosta Rica216 km (134 mi)NE of epicenterPatarra(pop: 24,000)III: WeakDesamparados, Provincia de San JoseCosta Rica217 km (135 mi)NE of epicenterSan Jose(pop: 335,000)III: WeakSan Jose, Provincia de San JoseCosta Rica218 km (136 mi)NE of epicenterSan Francisco(pop: 55,900)III: WeakHeredia, Provincia de HerediaCosta Rica219 km (136 mi)NE of epicenterSan Pedro(pop: 27,500)III: WeakMontes de Oca, Provincia de San JoseCosta Rica219 km (136 mi)NE of epicenterCurridabat(pop: 34,600)III: WeakProvincia de San JoseCosta Rica219 km (136 mi)NE of epicenterMercedes(pop: 26,000)III: WeakHeredia, Provincia de HerediaCosta Rica219 km (136 mi)NE of epicenterCalle Blancos(pop: 20,700)III: WeakGoicoechea, Provincia de San JoseCosta Rica219 km (136 mi)NE of epicenterSan Juan(pop: 26,000)III: WeakTibas, Provincia de San JoseCosta Rica220 km (137 mi)NE of epicenterHeredia(pop: 21,900)III: WeakProvincia de HerediaCosta Rica220 km (137 mi)NE of epicenterGuadalupe(pop: 26,000)III: WeakGoicoechea, Provincia de San JoseCosta Rica220 km (137 mi)NE of epicenterSan Diego(pop: 17,000)III: WeakLa Union, Provincia de CartagoCosta Rica221 km (137 mi)NE of epicenterSan Pablo(pop: 21,700)III: WeakProvincia de HerediaCosta Rica222 km (138 mi)NE of epicenterSan Vicente(pop: 34,400)III: WeakMoravia, Provincia de San JoseCosta Rica222 km (138 mi)NE of epicenterSan Vicente(pop: 34,400)III: WeakMoravia, Provincia de San JoseCosta Rica222 km (138 mi)NE of epicenterSan Vicente de Moravia(pop: 34,400)III: WeakMoravia, Provincia de San JoseCosta Rica223 km (138 mi)NE of epicenterPurral(pop: 30,000)III: WeakGoicoechea, Provincia de San JoseCosta Rica224 km (139 mi)NE of epicenterCartago(pop: 26,600)III: WeakProvincia de CartagoCosta Rica225 km (140 mi)NE of epicenterIpis(pop: 26,700)III: WeakGoicoechea, Provincia de San JoseCosta Rica227 km (141 mi)NE of epicenterParaiso(pop: 39,700)III: WeakParaiso, Provincia de CartagoCosta Rica230 km (143 mi)NE of epicenterQuesada(pop: 27,300)III: WeakSan Carlos, Provincia de AlajuelaCosta Rica235 km (146 mi)N of epicenterLiberia(pop: 45,400)III: WeakProvincia de GuanacasteCosta Rica247 km (153 mi)NE of epicenterTurrialba(pop: 29,000)III: WeakProvincia de CartagoCosta Rica272 km (169 mi)N of epicenterSan José(pop: 31,400)III: WeakUpala, Provincia de AlajuelaCosta Rica311 km (193 mi)NE of epicenterPuerto Limón(pop: 63,100)III: WeakLimon, Provincia de LimonCosta RicaNotes:(*) 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.Translate409.6 km NNW of epicenter [Map] / not felt (reported through our app)205.9 km NE of epicenter [Map] / not felt (reported through our iOS 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 felt2206–409 km (128–254 mi)307 km (191 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 GMT2026-08-10EpicenterAgency5.55 km3.1 mi20:55:00151 Km al suroeste de Jacó, Costa RicaINETER"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}document.addEventListener("DOMContentLoaded", function () { var section = document.getElementById("seismogramSection"); if (!section) return; var images = section.querySelectorAll("img.waitBg"); if (!images.length) return; images.forEach(function(img, index){ img.addEventListener("error", function(){ // If the first image fails, hide the whole section. if (index === 0) { // Remove TOC entry var tocLink = document.querySelector('#toc .tocLink[data-href="seismogramSection"]'); if (tocLink) {tocLink.remove()} // Remove whole section section.remove(); } // Otherwise remove only this station. var plot = img.closest(".plotContainer"); if (!plot) return; var station = plot.previousElementSibling; var caption = plot.nextElementSibling; if (station) station.remove(); plot.remove(); if (caption) caption.remove(); // Remove empty "Show more" var more = document.getElementById("moreSeismograms"); if (more && !more.querySelector(".plotContainer")) { more.remove(); var btn = document.getElementById("moreSeismograms_1"); if (btn) btn.remove(); } // Hide section if nothing remains. if (!section.querySelector(".plotContainer")) { section.style.display = "none"; } }, { once: true }); });});]]>SeismogramsSeismic station: Las Juntas de Abangares, Costa Rica (JTS/II network) | Distance from quake: 204 km / 127 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: 0.1-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Isla Barro Colorado, Panama (BCIP/CU network) | Distance from quake: 620 km / 385 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 32 km2 (12 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 10 km (6 mi).[More info]Recorded aftershocks, latest first (0 quake)2026-08-10 14:55:006 minutes ago5.55 km0 km - This quake151 km Al Suroeste De Jacó, Costa RicaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake',5.5,55, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',8.521,-85.444,'6 minutes ago: Mag. 5.5, 151 km Al Suroeste De Jacó, Costa Rica','','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (function(){let done=false;async function loadPrevious(){if(done)return;done=true;while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=23261283","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){let s=d.getElementById("olderQuakesSection");if(s)s.remove();return};let table=d.getElementById("qTableOlder");if(!table)return;table.innerHTML+=o.tableRows,qTableOlder.alternateBg();let ph=d.getElementById("placeholder_largestQText");if(ph)ph.innerHTML=o.html;let wrap=d.getElementById("sectionPreviousCWrap");if(wrap)wrap.style.display="";eval(o.js)}})}let d=document,target=d.getElementById("sectionPreviousCWrap")||d.getElementById("placeholder_largestQText")||d.getElementById("qTableOlder");if(!target||!("IntersectionObserver" in window)){loadPrevious();return}let obs=new IntersectionObserver(function(entries){if(entries.some(e=>e.isIntersecting)){obs.disconnect();loadPrevious()}},{rootMargin:"300px 0px"});obs.observe(target)})();]]>