Moderate magnitude 4.4 earthquake at 35 km depth23 Sep 15:31 UTC: First to report: NIED after 10 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeSep 23, 2026 15:21:21 UTC - Local time at epicenterThursday, Sep 24, 2026, at 02:21 am (GMT +11)Statusconfirmed (manually revised)Magnitude4.4Depth35 kmEpicenter latitude / longitude43.838°N / 147.367°ESakhalin Oblast, RussiaSeismic antipode43.838°S / 32.633°WShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoBerutarube (78 km / 48 mi)Weather at epicenter at time of quakeClear Sky 14.8°C (59 F), humidity: 90%, wind: 10 m/s (20 kts) from SSWEstimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | equivalent to ONE quake of magnitude 4.4 | about seismic energy17 minutes agoSep 23, 2026 15:21 GMT / Sep 24, 2026 02:21 am (GMT +11)Lat / Lng: 43.838 / 147.367: Russia: E Off HokkaidoSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23386071',43.83800,147.36700,'17 minutes ago: Mag. 4.4, Russia: E Off Hokkaido',html,'quakes-6-24.png',25,25,12,12,125]); 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 KamchatkaNearby placesThe closest larger town where the quake might have been felt is Shikotan, a town with 2,100 inhabitants in Russia, in 52 km (32 mi) distance west of the epicenter. People likely experienced weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry52 km (32 mi)W of epicenterShikotan(pop: 2,100)III: WeakSakhalin OblastRussia122 km (76 mi)W of epicenterYuzhno-Kurilsk(pop: 7,780)II: Very weakSakhalin OblastRussia155 km (96 mi)W of epicenterNemuro(pop: 31,200)II: Very weakHokkaidoJapan160 km (99 mi)N of epicenterKuril'sk(pop: 1,610)II: Very weakSakhalin OblastRussia175 km (109 mi)W of epicenterRausu(pop: 5,400)II: Very weakMenashi-gun, HokkaidoJapan181 km (112 mi)W of epicenterShibetsu(pop: 21,700)II: Very weakHokkaidoJapan195 km (121 mi)W of epicenterNakashibetsu(pop: 24,000)II: Very weakShibetsu-gun, HokkaidoJapan198 km (123 mi)W of epicenterHamanaka-sakuraminami(pop: 5,510)II: Very weakAkkeshi-gun, HokkaidoJapan217 km (135 mi)W of epicenterHonmachi(pop: 11,900)II: Very weakShari-gun, HokkaidoJapan222 km (138 mi)SW of epicenterAkkeshi(pop: 8,920)II: Very weakHokkaidoJapan233 km (145 mi)W of epicenterKoshimizu(pop: 5,030)II: Very weakShari-gun, HokkaidoJapan234 km (146 mi)W of epicenterTeshikaga(pop: 7,630)II: Very weakKawakami-gun, HokkaidoJapan234 km (146 mi)W of epicenterShibecha(pop: 7,230)II: Very weakKawakami-gun, HokkaidoJapan249 km (155 mi)W of epicenterAbashiri(pop: 35,800)II: Very weakHokkaidoJapan256 km (159 mi)W of epicenterTsurui(pop: 2,560)II: Very weakAkan-gun, HokkaidoJapan257 km (159 mi)W of epicenterOzora(pop: 7,430)II: Very weakAbashiri-gun, HokkaidoJapan260 km (162 mi)W of epicenterKushiro(pop: 167,900)II: Very weakHokkaidoJapan262 km (163 mi)W of epicenterMotomachi(pop: 23,000)II: Very weakAbashiri-gun, HokkaidoJapan269 km (167 mi)W of epicenterHoncho(pop: 5,010)II: Very weakAbashiri-gun, HokkaidoJapan279 km (173 mi)W of epicenterKitami(pop: 119,100)II: Very weakHokkaidoJapan282 km (175 mi)W of epicenterShiranuka(pop: 7,970)II: Very weakHokkaidoJapan286 km (178 mi)W of epicenterToppushi(pop: 4,880)II: Very weakTokoro-gun, HokkaidoJapan291 km (181 mi)W of epicenterMotomachi(pop: 4,680)I: Not feltTokoro-gun, HokkaidoJapan294 km (183 mi)W of epicenterRikubetsu(pop: 2,530)I: Not feltAshoro-gun, HokkaidoJapan304 km (189 mi)W of epicenterOketo(pop: 3,040)I: Not feltTokoro-gun, HokkaidoJapan307 km (191 mi)W of epicenterEngaru(pop: 19,200)I: Not feltMonbetsu Gun, HokkaidoJapan313 km (194 mi)W of epicenterKamihonbetsu(pop: 6,620)I: Not feltNakagawa-gun, HokkaidoJapan315 km (196 mi)W of epicenterAshoro(pop: 7,150)I: Not feltHokkaidoJapan321 km (200 mi)W of epicenterHoncho(pop: 5,020)I: Not feltTokachi-gun, HokkaidoJapan332 km (207 mi)W of epicenterIkeda(pop: 6,930)I: Not feltNakagawa-gun, HokkaidoJapan501 km (311 mi)NW of epicenterYuzhno-Sakhalinsk(pop: 199,000)I: Not feltSakhalin OblastRussiaNotes:(*) 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 GMT2026-09-23EpicenterAgency4.435 km22 mi15:21:21E OFF HOKKAIDONIED (National Research Institute for Earth Science and Disaster Resilience)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 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Sep 24, 2026 02:21 am (GMT +11)17 minutes ago4.435 km0 km - This quakeNorth Pacific Ocean, 52 km E of Shikotan, Sakhalin Oblast, RussiaMain 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 198 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 8 or higher: 0.02 quakes per year (or 1 quake every 62.5 years)Mag. 7 or higher: 0.11 quakes per year (or 1 quake every 9 years)Mag. 6 or higher: 0.88 quakes per year (or 1 quake every 1.1 years)Mag. 5 or higher: 5.7 quakes per yearMag. 4 or higher: 42 quakes per year (or 3.5 quakes per month)Mag. 3 or higher: 111 quakes per year (or 9.2 quakes per month)Mag. 2 or higher: 186 quakes per year (or 15.5 quakes per month)Mag. 1 or higher: 199 quakes per year (or 16.5 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 2 quakes above magnitude 8 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