Strong magnitude 5.8 earthquake at 216 km depth28 Jun 04:26 UTC: First to report: GFZ after 9 minutes.28 Jun 04:26: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeJun 28, 2025 04:17:06 UTC - Local time at epicenterSaturday, Jun 28, 2025, at 04:17 am (Universal Time GMT +0)StatusconfirmedMagnitude5.8Depth216 kmEpicenter latitude / longitude19.9102°S / 175.7993°WTongaSeismic antipode19.9102°N / 4.2007°EShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoFonuafo'ou (60 km / 37 mi)Estimated seismic energy released3.2 x 1013 joules (8.78 gigawatt hours, equivalent to 7558 tons of TNT or 0.5 atomic bombs!) | equivalent to ONE quake of magnitude 5.8 | about seismic energy9 minutes agoJun 28, 2025 04:17 GMT / Jun 28, 2025 04:17 am (Universal Time)Lat / Lng: -19.9102 / -175.7993: TongaSource: EMSCOther sources: GFZ: 5.6 / 246 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-21906389',-19.91020,-175.79930,'9 minutes ago: Mag. 5.8, 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 Houma, a town with 2,100 inhabitants in Tonga, in 149 km (93 mi) distance south of the epicenter. People likely experienced weak shaking there. In the capital of Tonga, Nuku'alofa, 150 km (93 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(*)RegionCountry149 km (93 mi)S of epicenterHouma(pop: 2,090)III: WeakTongatapuTonga150 km (93 mi)SE of epicenterNuku'alofa(pop: 22,400)III: WeakKolofo'ou, TongatapuTonga152 km (94 mi)E of epicenterPangai(pop: 1,740)III: WeakHa'apaiTonga158 km (98 mi)SE of epicenterLapaha(pop: 8,000)III: WeakTongatapuTonga182 km (113 mi)SE of epicenter`Ohonua(pop: 1,240)III: Weak'Eua Prope, EuaTonga237 km (147 mi)NE of epicenterNeiafu(pop: 4,320)III: WeakVava'uTonga488 km (303 mi)NE of epicenterHihifo(pop: 815)II: Very weakNiuasTongaNotes:(*) 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!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 GMT2025-06-28EpicenterAgency5.8216 km134 mi04:17:06.86TONGAEMSC (European-Mediterranean Seismological Centre)5.69246 km153 mi04:17:07.89Tonga Islands13 km (8 mi) epicenter difference with EMSCGFZ (German Research Centre for Geosciences)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 63 km2 (24 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 14 km (9 mi).[More info]Recorded aftershocks, latest first (0 quake)Jun 28, 2025 04:17 am (Universal Time)9 minutes ago5.8216 km0 km - This quakeTongaMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 25 years and our earthquake archive back to 1900, there are about 37.8 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.05 quakes per year (or 1 quake every 20.8 years)Mag. 6 or higher: 0.27 quakes per year (or 1 quake every 3.7 years)Mag. 5 or higher: 4.5 quakes per yearMag. 4 or higher: 36.9 quakes per year (or 3.1 quakes per month)Mag. 3 or higher: 54 quakes per year (or 4.5 quakes per month)Mag. 2 or higher: 54 quakes per year (or 4.5 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 6 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 20 to 25 years.Number of quakes per yearPrevious quakes in the same area of this earthquake