Moderate magnitude 4.3 earthquake at 231 km depth3 Aug 04:15 UTC: First to report: NIED after 13 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 3, 2026 04:01:57 UTC - Local time at epicenterMonday, Aug 3, 2026, at 01:01 pm (GMT +9)Statusconfirmed (manually revised)Magnitude4.3Depth231 kmEpicenter latitude / longitude44.423°N / 142.108°ENayoro Shi, Hokkaido, JapanSeismic antipode44.423°S / 37.892°WShaking intensityII Very weak shakingFelt0 reportsPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoDaisetsu (104 km / 65 mi)Weather at epicenter at time of quakeOvercast Clouds 26.8°C (80 F), humidity: 49%, wind: 1 m/s (2 kts) from SWEstimated seismic energy released1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) | equivalent to ONE quake of magnitude 4.3 | about seismic energy25 minutes agoAug 3, 2026 04:01 GMT / Aug 3, 2026 01:01 pm (GMT +9)Lat / Lng: 44.423 / 142.108: Japan: Kamikawa-Sorachi RegionSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23239832',44.42300,142.10800,'25 minutes ago: Mag. 4.3, Japan: Kamikawa-Sorachi Region',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 JapanNearby placesThe closest larger town where the quake might have been felt is Bifuka, a town with 4,600 inhabitants in Japan, in 19.5 km (12 mi) distance east of the epicenter. People likely experienced very weak shaking there. In the capital of Japan, Tokyo, 993 km (617 mi) away from the epicenter, the earthquake could not be felt.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry20 km (12 mi)E of epicenterBifuka(pop: 4,610)II: Very weakNakagawa Gun, HokkaidoJapan29 km (18 mi)E of epicenterNayoro(pop: 27,300)II: Very weakHokkaidoJapan30 km (18 mi)NW of epicenterShosanbetsu(pop: 1,250)II: Very weakTomamae Gun, HokkaidoJapan33 km (21 mi)W of epicenterHaboro(pop: 7,340)II: Very weakTomamae Gun, HokkaidoJapan36 km (22 mi)SE of epicenterShibetsu(pop: 17,900)II: Very weakHokkaidoJapan37 km (23 mi)SE of epicenterMinamishibetsucho(pop: 19,800)II: Very weakShibetsu Shi, HokkaidoJapan40 km (25 mi)NW of epicenterKanaura(pop: 2,970)II: Very weakTeshio Gun, HokkaidoJapan44 km (27 mi)N of epicenterNakagawa(pop: 1,590)II: Very weakHokkaidoJapan46 km (28 mi)S of epicenterHorokanai(pop: 1,370)II: Very weakUryu Gun, HokkaidoJapan49 km (31 mi)SE of epicenterShinshimokawa(pop: 3,840)II: Very weakKamikawa-gun (Teshio no kuni), HokkaidoJapan51 km (32 mi)SE of epicenterWassamu(pop: 3,550)II: Very weakKamikawa-gun (Teshio no kuni), HokkaidoJapan58 km (36 mi)NW of epicenterTeshio(pop: 3,240)II: Very weakHokkaidoJapan63 km (39 mi)N of epicenterNakatonbetsu(pop: 1,780)II: Very weakEsashi Gun, HokkaidoJapan66 km (41 mi)SW of epicenterRumoi(pop: 26,500)II: Very weakHokkaidoJapan68 km (42 mi)E of epicenterNishiokoppe(pop: 1,120)II: Very weakMonbetsu Gun, HokkaidoJapan68 km (42 mi)NE of epicenterEsashi(pop: 8,580)II: Very weakHokkaidoJapan69 km (43 mi)SE of epicenterAibetsu(pop: 2,990)II: Very weakKamikawa-gun (Ishikari), HokkaidoJapan69 km (43 mi)N of epicenterHoronobe(pop: 2,420)II: Very weakTeshio Gun, HokkaidoJapan70 km (43 mi)E of epicenterOmu(pop: 4,600)II: Very weakMonbetsu Gun, HokkaidoJapan70 km (44 mi)S of epicenterNumata(pop: 3,210)II: Very weakUryu Gun, HokkaidoJapan75 km (46 mi)SE of epicenterToma(pop: 6,320)II: Very weakKamikawa-gun (Ishikari), HokkaidoJapan75 km (47 mi)S of epicenterAsahikawa(pop: 333,500)II: Very weakHokkaidoJapan79 km (49 mi)SW of epicenterMashike(pop: 4,630)II: Very weakHokkaidoJapan80 km (50 mi)S of epicenterFukagawa(pop: 26,200)II: Very weakHokkaidoJapan80 km (50 mi)N of epicenterToyotomi(pop: 4,050)II: Very weakTeshio Gun, HokkaidoJapan85 km (53 mi)S of epicenterHigashikagura(pop: 10,100)II: Very weakKamikawa-gun (Ishikari), HokkaidoJapan97 km (60 mi)S of epicenterAkabira(pop: 14,200)II: Very weakHokkaidoJapan97 km (61 mi)S of epicenterBiei(pop: 10,400)II: Very weakKamikawa-gun (Ishikari), HokkaidoJapan98 km (61 mi)S of epicenterTakikawa(pop: 45,100)II: Very weakHokkaidoJapan99 km (62 mi)E of epicenterMombetsu(pop: 23,000)II: Very weakMonbetsu Shi, HokkaidoJapan108 km (67 mi)N of epicenterMakubetsu(pop: 26,600)II: Very weakWakkanai Shi, HokkaidoJapan115 km (71 mi)N of epicenterWakkanai(pop: 33,900)II: Very weakHokkaidoJapan124 km (77 mi)S of epicenterBibai(pop: 29,000)I: Not feltHokkaidoJapan139 km (86 mi)S of epicenterIwamizawa(pop: 85,100)I: Not feltHokkaidoJapan145 km (90 mi)SW of epicenterIshikari(pop: 58,800)I: Not feltHokkaidoJapan153 km (95 mi)S of epicenterEbetsu(pop: 134,000)I: Not feltHokkaidoJapan158 km (98 mi)SE of epicenterKitami(pop: 119,100)I: Not feltHokkaidoJapan163 km (101 mi)S of epicenterSapporo(pop: 1,973,800)I: Not feltHokkaidoJapan163 km (102 mi)SW of epicenterOtaru(pop: 115,300)I: Not feltHokkaidoJapan993 km (617 mi)S of epicenterTokyo(pop: 9,733,300): Not feltTokyoJapanNotes:(*) 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 GMT2026-08-3EpicenterAgency4.3231 km144 mi04:01:57KAMIKAWA-SORACHI REGIONNIED (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 2 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Aug 3, 2026 01:01 pm (GMT +9)25 minutes ago4.3231 km0 km - This quakeJapan: Kamikawa-Sorachi RegionMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 56 years and our earthquake archive back to 1900, there are about 236 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.02 quakes per year (or 1 quake every 41.7 years)Mag. 5 or higher: 0.21 quakes per year (or 1 quake every 4.7 years)Mag. 4 or higher: 10.6 quakes per yearMag. 3 or higher: 33 quakes per year (or 2.7 quakes per month)Mag. 2 or higher: 53 quakes per year (or 4.4 quakes per month)Mag. 1 or higher: 111 quakes per year (or 9.2 quakes per month)The area where this quake occurred has a high level of seismic activity. It has had at least 3 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 40 to 45 years.Number of quakes per yearPrevious quakes in the same area of this earthquake