Strong magnitude 5.4 earthquake at unknown depth4 Oct 19:03 UTC: First to report: GFZ after 13 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 4, 2025 18:50:08 UTC - Local time at epicenterSaturday, Oct 4, 2025, at 06:50 pm (Universal Time GMT +0)Statusunconfirmed (uncertain whether an earthquake with these data happened)Magnitude5.4Depth10 kmEpicenter latitude / longitude17.618°S / 178.773°WFijiSeismic antipode17.618°N / 1.227°EShaking intensityVI Strong shaking near epicenterFelt0 reportsPrimary data sourceGFZ (German Research Centre for Geosciences)Nearest volcanoKatafaga (12 km / 7 mi)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 energy13 minutes agoOct 4, 2025 18:50 GMT / Oct 4, 2025 06:50 pm (Universal Time)Lat / Lng: -17.618 / -178.773: Fiji Islands RegionSource: GFZDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22239080',-17.61800,-178.77300,'13 minutes ago: Mag. 5.4, Fiji Islands Region',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 FijiNearby placesThe closest larger town where the quake might have been felt is Leava, a town with 480 inhabitants in Wallis and Futuna, in 376 km (233 mi) distance north of the epicenter. People likely experienced very weak shaking there. In the capital of Wallis and Futuna, Mata-Utu, 557 km (346 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(*)RegionCountry376 km (233 mi)N of epicenterLeava(pop: 480)II: Very weakSigave Wallis & Futuna519 km (323 mi)E of epicenterNeiafu(pop: 4,320)II: Very weakVava'uTonga526 km (327 mi)SE of epicenterFangale'ounga(pop: 2,020)II: Very weakHa'apaiTonga537 km (334 mi)SE of epicenterHouma(pop: 2,090)II: Very weakTongatapuTonga542 km (337 mi)SE of epicenterNuku'alofa(pop: 22,400)II: Very weakKolofo'ou, TongatapuTonga551 km (343 mi)SE of epicenterKolonga(pop: 1,100)II: Very weakTongatapuTonga557 km (346 mi)NE of epicenterMata-Utu(pop: 1,200)II: Very weakUvea Wallis & Futuna561 km (349 mi)E of epicenterHihifo(pop: 815)II: Very weakNiuasTonga576 km (358 mi)SE of epicenter`Ohonua(pop: 1,240)II: Very weak'Eua Prope, EuaTongaNotes:(*) 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 GMT2025-10-4EpicenterAgency5.4710 km6.2 mi(*)18:50:08.73Fiji Islands RegionGFZ (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.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 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)Oct 4, 2025 06:50 pm (Universal Time)13 minutes ago5.410 km0 km - This quakeFiji Islands RegionMain 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 224 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.07 quakes per year (or 1 quake every 13.9 years)Mag. 6 or higher: 0.54 quakes per year (or 1 quake every 1.8 years)Mag. 5 or higher: 8.9 quakes per yearMag. 4 or higher: 221 quakes per year (or 18.4 quakes per month)Mag. 3 or higher: 302 quakes per year (or 25.2 quakes per month)Mag. 2 or higher: 302 quakes per year (or 25.2 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 9 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 10 to 15 years.Number of quakes per yearPrevious quakes in the same area of this earthquake