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The quake had a very shallow depth of 23 km (14 mi) and was not felt (or at least not reported so).Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in Japan | Kagoshima-ken | OkinawaHint: Click on the image to see different maps of this quake!Strong magnitude 5.5 earthquake at 23 km depth20 Sep 07:36 UTC: First to report: RaspberryShake after 8 minutes.20 Sep 07:36: Now using data updates from GFZ20 Sep 07:38: Now using data updates from BMKG20 Sep 07:38: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeSep 20, 2026 07:28:20 UTC - Local time at epicenterSunday, Sep 20, 2026, at 04:28 pm (GMT +9)StatusconfirmedMagnitude5.50Depth23 kmEpicenter latitude / longitude28.4204°N / 129.3713°EAmami Shi, Kagoshima-ken, JapanSeismic antipode28.4204°S / 50.629°WBrazilShaking intensityV Moderate shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoYokoate-jima (56 km / 35 mi)Weather at epicenter at time of quakeClear Sky 25.6°C (78 F), humidity: 82%, wind: 7 m/s (13 kts) from NEstimated 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 energy11 minutes agoSep 20, 2026 07:28 GMT / Sep 20, 2026 04:28 pm (GMT +9)Lat / Lng: 28.4204 / 129.3713: Ryukyu Islands, JapanSource: EMSCOther sources: RaspberryShake: 5.5 / 10 km, GFZ: 5.5 / 10 km, 1 more...Detail info | You felt it? - Report it!';storedMarkers.push(['quake-23377293',28.42040,129.37130,'11 minutes ago: Mag. 5.5, Ryukyu Islands, Japan',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 JapanNearby placesThe closest larger town where the quake might have been felt is Amami, a town with 41,000 inhabitants in Japan, in 12.9 km (8 mi) distance east of the epicenter. People likely experienced moderate shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry7 km (4 mi)S of epicenterYamatohama(pop: 1,360)V: ModerateOshima-gun, Kagoshima-kenJapan12 km (8 mi)SE of epicenterNaze(pop: 41,400)V: ModerateAmami Shi, Kagoshima-kenJapan13 km (8 mi)E of epicenterAmami(pop: 41,400)V: ModerateKagoshima-kenJapan19 km (12 mi)SW of epicenterUken(pop: 1,840)V: ModerateOshima-gun, Kagoshima-kenJapan23 km (14 mi)E of epicenterTatsugo(pop: 5,990)V: ModerateOshima-gun, Kagoshima-kenJapan32 km (20 mi)S of epicenterSeisui(pop: 8,550)V: ModerateOshima-gun, Kagoshima-kenJapan56 km (35 mi)E of epicenterAkaren(pop: 6,630)IV: LightOshima-gun, Kagoshima-kenJapan81 km (50 mi)SW of epicenterTokuwase(pop: 10,100)IV: LightOshima-gun, Kagoshima-kenJapan81 km (51 mi)SW of epicenterAmagi(pop: 6,350)IV: LightOshima-gun, Kagoshima-kenJapan93 km (58 mi)SW of epicenterIsen(pop: 6,590)IV: LightOshima-gun, Kagoshima-kenJapan135 km (84 mi)SW of epicenterWadomari(pop: 6,930)III: WeakOshima-gun, Kagoshima-kenJapan179 km (111 mi)SW of epicenterChabana(pop: 5,120)III: WeakOshima-gun, Kagoshima-kenJapan243 km (151 mi)SW of epicenterNago(pop: 63,600)III: WeakOkinawaJapan243 km (151 mi)SW of epicenterMotobu(pop: 13,400)III: WeakKunigami-gun, OkinawaJapan251 km (156 mi)NE of epicenterKoseda(pop: 11,900)III: WeakKumage-gun, Kagoshima-kenJapan261 km (162 mi)SW of epicenterOnna(pop: 10,900)III: WeakKunigami-gun, OkinawaJapan262 km (163 mi)SW of epicenterKin(pop: 11,300)III: WeakKunigami-gun, OkinawaJapan270 km (168 mi)SW of epicenterIshikawa(pop: 22,400)III: WeakUruma Shi, OkinawaJapan272 km (169 mi)SW of epicenterUruma(pop: 125,300)III: WeakOkinawaJapan273 km (170 mi)SW of epicenterGushikawa(pop: 65,300)III: WeakUruma Shi, OkinawaJapan275 km (171 mi)SW of epicenterKatsuren-haebaru(pop: 34,200)III: WeakUruma Shi, OkinawaJapan276 km (172 mi)SW of epicenterYomitan(pop: 41,200)III: WeakNakagami, OkinawaJapan279 km (173 mi)SW of epicenterKadena(pop: 13,700)III: WeakNakagami, OkinawaJapan279 km (173 mi)SW of epicenterOkinawa(pop: 142,800)III: WeakOkinawaJapan282 km (175 mi)SW of epicenterKishaba(pop: 18,000)III: WeakNakagami, OkinawaJapan283 km (176 mi)SW of epicenterChatan(pop: 28,200)III: WeakNakagami, OkinawaJapan284 km (177 mi)NE of epicenterNokan(pop: 7,540)III: WeakKumage-gun, Kagoshima-kenJapan288 km (179 mi)SW of epicenterGinowan(pop: 100,100)III: WeakOkinawaJapan288 km (179 mi)SW of epicenterNakagusuku(pop: 22,200)III: WeakNakagami, OkinawaJapan290 km (180 mi)SW of epicenterNishihara(pop: 35,000)III: WeakUrasoe Shi, OkinawaJapan290 km (180 mi)SW of epicenterUrasoe(pop: 115,700)III: WeakOkinawaJapan294 km (183 mi)SW of epicenterYonabaru(pop: 19,700)III: WeakShimajiri-gun, OkinawaJapan296 km (184 mi)SW of epicenterKanegusuku(pop: 40,400)III: WeakShimajiri-gun, OkinawaJapan297 km (185 mi)SW of epicenterNaha(pop: 317,600)III: WeakOkinawaJapan299 km (186 mi)SW of epicenterNanjo(pop: 44,000)III: WeakNanjo Shi, OkinawaJapan299 km (186 mi)SW of epicenterTomigusuku(pop: 64,600)III: WeakOkinawaJapan302 km (187 mi)SW of epicenterYaese(pop: 30,900)III: WeakShimajiri-gun, OkinawaJapan302 km (187 mi)NE of epicenterNishinoomote(pop: 17,800)III: WeakKagoshima-kenJapan306 km (190 mi)SW of epicenterItoman(pop: 61,000)III: WeakOkinawaJapan368 km (229 mi)N of epicenterKagoshima(pop: 595,000)III: WeakKagoshima-kenJapanNotes:(*) 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 GMT2026-09-20EpicenterAgency5.523 km14 mi07:28:20.74RYUKYU ISLANDS, JAPANEMSC (European-Mediterranean Seismological Centre)5.510 km6.2 mi(*)07:28:18Ryukyu Islands, Japan14 km (8.5 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)5.4810 km6.2 mi(*)07:28:18.77Ryukyu Islands, Japan14 km (8.4 mi) epicenter difference with EMSCGFZ (German Research Centre for Geosciences)5.1142 km88 mi07:28:45Ryukyu Islands, Japan201 km (125 mi) epicenter difference with EMSCBMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)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: Taipei, Taiwan (TATO/IU network) | Distance from quake: 871 km / 541 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: Inchon, Republic of Korea (INCN/IU network) | Distance from quake: 1039 km / 646 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)Sep 20, 2026 04:28 pm (GMT +9)11 minutes ago5.523 km0 km - This quakeOkinawa, 205 km SW of Naze, Kagoshima-ken, JapanMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 665 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 6 or higher: 0.2 quakes per year (or 1 quake every 5 years)Mag. 5 or higher: 2.2 quakes per yearMag. 4 or higher: 21.1 quakes per yearMag. 3 or higher: 107 quakes per year (or 8.9 quakes per month)Mag. 2 or higher: 263 quakes per year (or 21.9 quakes per month)Mag. 1 or higher: 552 quakes per year (or 46 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 4 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquake