Light magnitude 3.9 earthquake at 35 km depth3 Aug 15:15 UTC: First to report: NIED after 11 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 3, 2026 15:03:55 UTC - Local time at epicenterTuesday, Aug 4, 2026, at 12:03 am (GMT +9)Statusconfirmed (manually revised)Magnitude3.9Depth35 kmEpicenter latitude / longitude43.766°N / 147.311°ESakhalin Oblast, RussiaSeismic antipode43.766°S / 32.689°WShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoBerutarube (83 km / 52 mi)Estimated seismic energy released4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) | equivalent to ONE quake of magnitude 3.9 | about seismic energy12 minutes agoAug 3, 2026 15:03 GMT / Aug 4, 2026 12:03 am (GMT +9)Lat / Lng: 43.766 / 147.311: Russia: E Off HokkaidoSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23241153',43.76600,147.31100,'12 minutes ago: Mag. 3.9, Russia: E Off Hokkaido',html,'quakes-5-24.png',18,18,9,9,124]); 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 47 km (29 mi) distance west of the epicenter. People likely experienced very weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry47 km (29 mi)W of epicenterShikotan(pop: 2,100)II: Very weakSakhalin OblastRussia120 km (74 mi)W of epicenterYuzhno-Kurilsk(pop: 7,780)II: Very weakSakhalin OblastRussia148 km (92 mi)W of epicenterNemuro(pop: 31,200)II: Very weakHokkaidoJapan169 km (105 mi)N of epicenterKuril'sk(pop: 1,610)I: Not feltSakhalin OblastRussia172 km (107 mi)W of epicenterRausu(pop: 5,400)I: Not feltMenashi-gun, HokkaidoJapan176 km (109 mi)W of epicenterShibetsu(pop: 21,700)I: Not feltHokkaidoJapan190 km (118 mi)W of epicenterNakashibetsu(pop: 24,000)I: Not feltShibetsu-gun, HokkaidoJapan191 km (119 mi)W of epicenterHamanaka-sakuraminami(pop: 5,510)I: Not feltAkkeshi-gun, HokkaidoJapan213 km (132 mi)W of epicenterHonmachi(pop: 11,900)I: Not feltShari-gun, HokkaidoJapan215 km (133 mi)W of epicenterAkkeshi(pop: 8,920)I: Not feltHokkaidoJapan228 km (142 mi)W of epicenterShibecha(pop: 7,230)I: Not feltKawakami-gun, HokkaidoJapan229 km (142 mi)W of epicenterKoshimizu(pop: 5,030)I: Not feltShari-gun, HokkaidoJapan229 km (142 mi)W of epicenterTeshikaga(pop: 7,630)I: Not feltKawakami-gun, HokkaidoJapan245 km (152 mi)W of epicenterAbashiri(pop: 35,800)I: Not feltHokkaidoJapan250 km (155 mi)W of epicenterTsurui(pop: 2,560)I: Not feltAkan-gun, HokkaidoJapan253 km (157 mi)W of epicenterOzora(pop: 7,430)I: Not feltAbashiri-gun, HokkaidoJapan253 km (157 mi)W of epicenterKushiro(pop: 167,900)I: Not feltHokkaidoJapan258 km (160 mi)W of epicenterMotomachi(pop: 23,000)I: Not feltAbashiri-gun, HokkaidoJapan264 km (164 mi)W of epicenterHoncho(pop: 5,010)I: Not feltAbashiri-gun, HokkaidoJapan275 km (171 mi)W of epicenterKitami(pop: 119,100)I: Not feltHokkaidoJapan275 km (171 mi)W of epicenterShiranuka(pop: 7,970)I: Not feltHokkaidoJapan503 km (313 mi)NW of epicenterYuzhno-Sakhalinsk(pop: 199,000): 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 GMT2026-08-3EpicenterAgency3.935 km22 mi15:03:55E OFF HOKKAIDONIED (National Research Institute for Earth Science and Disaster Resilience)Earthquake statisticsAverage number of earthquakesBased on data from the past 26 years and our earthquake archive back to 1900, there are about 211 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: 0.1 quakes per year (or 1 quake every 9.7 years)Mag. 6 or higher: 0.9 quakes per year (or 1 quake every 1.1 years)Mag. 5 or higher: 5.6 quakes per yearMag. 4 or higher: 41 quakes per year (or 3.4 quakes per month)Mag. 3 or higher: 111 quakes per year (or 9.2 quakes per month)Mag. 2 or higher: 195 quakes per year (or 16.2 quakes per month)Mag. 1 or higher: 212 quakes per year (or 17.7 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