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The depth of the quake could not be determined, but is assumed to be shallow.The quake was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | State of Yap | State of Kayangel | State of NgaraardHint: Click on the image to see different maps of this quake!Strong magnitude 5.4 earthquake at unknown depth17 Aug 23:01 UTC: First to report: GFZ after 8 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 17, 2026 22:53:12 UTC - Local time at epicenterMonday, Aug 17, 2026, at 10:53 pm (Universal Time GMT +0)Statusunconfirmed (uncertain whether an earthquake with these data happened)Magnitude5.35Depth10 kmEpicenter latitude / longitude9.668°N / 138.457°EMicronesiaSeismic antipode9.668°S / 41.543°WShaking intensityVI Strong shaking near epicenterFelt0 reportsPrimary data sourceGFZ (German Research Centre for Geosciences)Estimated seismic energy released7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | equivalent to ONE quake of magnitude 5.4 | about seismic energy8 minutes agoAug 17, 2026 22:53 GMT / Aug 17, 2026 10:53 pm (Universal Time)Lat / Lng: 9.668 / 138.457: Western Caroline Islands, MicronesiaSource: GFZDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23286052',9.66800,138.45700,'8 minutes ago: Mag. 5.4, Western Caroline Islands, Micronesia',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 hrsNearby placesThe closest larger town where the quake might have been felt is Colonia, a town with 7,400 inhabitants in Micronesia, in 40 km (25 mi) distance southwest of the epicenter. People likely experienced light shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry40 km (25 mi)SW of epicenterColonia(pop: 7,370)IV: LightWeloy Municipality, State of Yap Micronesia226 km (141 mi)E of epicenterFais(pop: 215)III: WeakState of Yap Micronesia447 km (278 mi)SW of epicenterKayangel(pop: 188)II: Very weakState of Kayangel Palau477 km (296 mi)SW of epicenterUlimang(pop: 581)II: Very weakState of Ngaraard Palau489 km (304 mi)SW of epicenterNgchesar Hamlet(pop: 300)II: Very weakState of Ngchesar Palau493 km (306 mi)SW of epicenterImeong Hamlet(pop: 132)II: Very weakState of Ngeremlengui Palau503 km (312 mi)SW of epicenterNgchemiangel(pop: 270)II: Very weakState of Aimeliik Palau508 km (316 mi)SW of epicenterKoror Town(pop: 12,700)II: Very weakState of Koror Palau509 km (316 mi)SW of epicenterKoror(pop: 14,000)II: Very weakState of Koror Palau547 km (340 mi)SW of epicenterKloulklubed(pop: 702)II: Very weakState of Peleliu Palau567 km (352 mi)SW of epicenterSaipan(pop: 320)II: Very weakState of Angaur PalauNotes:(*) 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 GMT2026-08-17EpicenterAgency5.3510 km6.2 mi(*)22:53:12.84Western Caroline Islands, MicronesiaGFZ (German Research Centre for Geosciences)Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy."; 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: Guam, Mariana Islands (GUMO/IU network) | Distance from quake: 823 km / 511 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: 0.02-4.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Davao, Philippines (DAV/IU network) | Distance from quake: 1446 km / 898 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 25 km2 (10 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 9 km (5 mi).[More info]Recorded aftershocks, latest first (0 quake)Aug 17, 2026 10:53 pm (Universal Time)8 minutes ago5.410 km0 km - This quakeWestern Caroline Islands, MicronesiaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 56 years and our earthquake archive back to 1900, there are about 2.3 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.02 quakes per year (or 1 quake every 62.5 years)Mag. 5 or higher: 0.39 quakes per year (or 1 quake every 2.6 years)Mag. 4 or higher: 2.7 quakes per yearMag. 3 or higher: 4.3 quakes per yearMag. 2 or higher: 4.3 quakes per yearThe area where this quake occurred has a high level of seismic activity. It has had at least 2 quakes above magnitude 6 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