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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 | Quakes in Tonga | Niuas | Vava'u | UveaHint: Click on the image to see different maps of this quake!Strong magnitude 5.0 earthquake at unknown depth20 Sep 05:20 UTC: First to report: EMSC after 13 minutes.20 Sep 05:20: Hypocenter depth recalculated from 10.00 to 35.00 km (from 6.2 to 22 mi). Epicenter location corrected by 11 km (7 mi) towards W.20 Sep 05:23: Now using data updates from USGSUpdate Sun, 20 Sep 2026, 05:21Significant 5.2 quake hits near Hihifo, Niuas, TongaA magnitude 5.2 earthquake near Hihifo, Niuas, Tonga, was reported only 14 minutes ago by the European-Mediterranean Seismological Centre (EMSC), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a moderately shallow depth of 35. km beneath the epicenter early evening on Sunday, September 20th, 2026, at 6:07 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.Our monitoring service identified a second report from the German Research Centre for Geosciences (GFZ) which listed the quake at magnitude 5.2 as well.Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.Weak shaking might have been felt in Hihifo (pop. 300) located 109 km from the epicenter.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.If you were or still are in this area during the quake help others with your feedback and report it here.Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOSI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 20, 2026 05:07:03 UTC - Local time at epicenterSunday, Sep 20, 2026, at 06:07 pm (GMT +13)Statusconfirmed (manually revised)Magnitude5.00Depth10 kmEpicenter latitude / longitude15.8926°S / 174.7641°WTongaSeismic antipode15.8926°N / 5.2359°ENigerQuality27 seismic stationsShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoTafu-Maka (82 km / 51 mi)Weather at epicenter at time of quakeOvercast Clouds 24.9°C (77 F), humidity: 83%, wind: 9 m/s (17 kts) from SSEEstimated seismic energy released2 x 1012 joules (554 megawatt hours, equivalent to 477 tons of TNT) | equivalent to ONE quake of magnitude 5.0 | about seismic energy27 minutes agoSep 20, 2026 05:07 GMT / Sep 20, 2026 06:07 pm (GMT +13)Lat / Lng: -15.8926 / -174.7641: 103 km W of Hihifo, TongaSource: USGSOther sources: GFZ: 5.2 / 10 km, EMSC: 5.0 / 10 km, 1 more...Detail info | You felt it? - Report it!';storedMarkers.push(['quake-23377064',-15.89260,-174.76410,'27 minutes ago: Mag. 5.0, 103 km W of Hihifo, Tonga',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 TongaNearby placesThe closest larger town where the quake might have been felt is Hihifo, a town with 301 inhabitants in Tonga, in 104 km (64 mi) distance east of the epicenter. People likely experienced weak shaking there. In the capital of American Samoa, Pago Pago, 472 km (293 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry104 km (64 mi)E of epicenterHihifo(pop: 301)III: WeakNiuasTonga318 km (197 mi)S of epicenterNeiafu(pop: 3,830)II: Very weakVava'uTonga328 km (204 mi)NW of epicenterMata-Utu(pop: 1,200)II: Very weakUvea Wallis & Futuna336 km (209 mi)NE of epicenterTaga(pop: 680)II: Very weakPalauli Samoa337 km (209 mi)NE of epicenterSagone(pop: 776)II: Very weakSatupa'itea Samoa348 km (216 mi)NE of epicenterGataivai(pop: 1,140)II: Very weakPalauli Samoa349 km (217 mi)NE of epicenterAsau(pop: 6,640)II: Very weakVaisigano Samoa370 km (230 mi)NE of epicenterSapapali'i(pop: 877)II: Very weakFa'asaleleaga Samoa372 km (231 mi)NE of epicenterSafotu(pop: 1,210)II: Very weakGagaifomauga Samoa372 km (231 mi)NE of epicenterMulifanua(pop: 4,510)II: Very weakAiga-i-le-Tai Samoa376 km (233 mi)NE of epicenterSamalaeulu(pop: 789)II: Very weakGaga'emauga Samoa382 km (237 mi)NE of epicenterFasito`outa(pop: 2,100)II: Very weakA'ana Samoa383 km (238 mi)NE of epicenterSi'umu(pop: 1,180)II: Very weakTuamasaga Samoa394 km (245 mi)NE of epicenterMatavai(pop: 1,310)II: Very weakGagaifomauga Samoa395 km (246 mi)NE of epicenterApia(pop: 40,400)II: Very weakTuamasaga Samoa404 km (251 mi)NE of epicenterSolosolo(pop: 1,490)II: Very weakAtua Samoa406 km (252 mi)NW of epicenterLeava(pop: 480)II: Very weakSigave Wallis & Futuna407 km (253 mi)NE of epicenterMaasina(pop: 160)II: Very weak Samoa412 km (256 mi)NE of epicenterLalomanu(pop: 704)II: Very weakAtua Samoa432 km (268 mi)S of epicenterFangale'ounga(pop: 2,020)II: Very weakHa'apaiTonga461 km (286 mi)E of epicenterLeone(pop: 4,050)II: Very weakWestern District American Samoa472 km (293 mi)E of epicenterPago Pago(pop: 11,500)II: Very weakEastern District American Samoa486 km (302 mi)E of epicenterAlao(pop: 508)II: Very weakEastern District American SamoaNotes:(*) 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 GMT2026-09-20EpicenterAgency5.010 km6.2 mi(*)05:07:03.869103 km W of Hihifo, TongaUSGS (United States Geological Survey)5.210 km6.2 mi(*)05:07:04.75Tonga Islands11 km (7 mi) epicenter difference with USGSGFZ (German Research Centre for Geosciences)5.010 km6.2 mi(*)05:07:03.869TONGA0 km (0 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)5.210 km6.2 mi(*)05:07:04Tonga Islands11 km (7 mi) epicenter difference with USGSRaspberryShake (RaspberryShake)5.542 km26 mi±4.7 km05:07:06.806±0.32sTonga Trench25 km (16 mi) epicenter difference with USGSEpicenter uncertainty: ± 9.5 kmGeoAu (Geoscience Australia )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: Afiamalu, Samoa (AFI/IU network) | Distance from quake: 389 km / 242 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: Monasavu, Fiji (MSVF/II network) | Distance from quake: 792 km / 492 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 10 km2 (4 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 5 km (3 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 20, 2026 06:07 pm (GMT +13)27 minutes ago5.010 km0 km - This quake103 km W of Hihifo, TongaMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake27 minutes agoSep 20, 2026 05:07 GMT / Sep 20, 2026 06:07 pm (GMT +13)Lat / Lng: -15.8926 / -174.7641: 103 km W of Hihifo, TongaSource: USGSOther sources: GFZ: 5.2 / 10 km, EMSC: 5.0 / 10 km, 1 more...Detail info | You felt it? - Report it!',5.0,50, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',-15.8926,-174.7641,'27 minutes ago: Mag. 5.0, 103 km W of Hihifo, Tonga','Earthquake: Mag 5.0 / 10 km (6.2 mi) depth27 minutes agoSep 20, 2026 05:07 GMT / Sep 20, 2026 06:07 pm (GMT +13)Lat / Lng: -15.8926 / -174.7641: 103 km W of Hihifo, TongaSource: USGSOther sources: GFZ: 5.2 / 10 km, EMSC: 5.0 / 10 km, 1 more...Detail info | You felt it? - Report it!','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=23377064","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)})();]]>Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.