Moderate magnitude 4.1 earthquake at 60 km depth30 Jun 15:07 UTC: First to report: EMSC after 5 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJun 30, 2026 15:02:30 UTC - Local time at epicenterWednesday, Jul 1, 2026, at 12:02 am (GMT +9)Statuspreliminary (automatic detection)Magnitude4.09Depth60 kmEpicenter latitude / longitude34.5°N / 140.2°EJapanSeismic antipode34.5°S / 39.8°WShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoOshima (77 km / 48 mi)Estimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | equivalent to ONE quake of magnitude 4.1 | about seismic energy5 minutes agoJun 30, 2026 15:02 GMT / Jul 1, 2026 12:02 am (GMT +9)Lat / Lng: 34.5 / 140.2: Near East Coast OF Honshu, JapanSource: EMSCDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23147563',34.50000,140.20000,'5 minutes ago: Mag. 4.1, Near East Coast OF Honshu, Japan',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 Yokosuka, a city with more than 410,000 inhabitants in Japan, in 100 km (62 mi) distance northwest of the epicenter. People likely experienced very weak shaking there. Many smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Japan, Tokyo, 140 km (87 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(*)RegionCountry62 km (38 mi)NW of epicenterTateyama(pop: 50,100)II: Very weakChibaJapan64 km (40 mi)NW of epicenterMinamiboso(pop: 35,800)II: Very weakMinamiboso Shi, ChibaJapan67 km (42 mi)N of epicenterKamogawa(pop: 32,100)II: Very weakChibaJapan73 km (45 mi)N of epicenterKatsuura(pop: 16,900)II: Very weakChibaJapan77 km (48 mi)SW of epicenterMiyake(pop: 2,270)II: Very weakTokyoJapan79 km (49 mi)NW of epicenterMotona(pop: 6,990)II: Very weakAwa-gun, ChibaJapan83 km (52 mi)N of epicenterIsumi(pop: 35,500)II: Very weakChibaJapan85 km (53 mi)N of epicenterOhara(pop: 20,200)II: Very weakIsumi Shi, ChibaJapan89 km (55 mi)NW of epicenterMiura(pop: 51,500)II: Very weakKanagawaJapan93 km (58 mi)NW of epicenterKurihama(pop: 53,800)II: Very weakYokosuka Shi, KanagawaJapan97 km (60 mi)N of epicenterFuttsu(pop: 51,700)II: Very weakChibaJapan99 km (62 mi)N of epicenterKimitsu(pop: 83,100)II: Very weakChibaJapan100 km (62 mi)NW of epicenterYokosuka(pop: 409,500)II: Very weakKanagawaJapan101 km (63 mi)N of epicenterKisarazu(pop: 136,200)II: Very weakChibaJapan103 km (64 mi)N of epicenterSodegaura(pop: 64,900)II: Very weakChibaJapan103 km (64 mi)N of epicenterMobara(pop: 88,300)II: Very weakChibaJapan105 km (65 mi)NW of epicenterZushi(pop: 60,100)II: Very weakKanagawaJapan108 km (67 mi)NW of epicenterKamakura(pop: 172,900)II: Very weakKanagawaJapan114 km (71 mi)N of epicenterIchihara(pop: 283,500)II: Very weakChibaJapan115 km (71 mi)NW of epicenterIto(pop: 68,800)II: Very weakIto Shi, ShizuokaJapan115 km (72 mi)NW of epicenterFujisawa(pop: 439,700)II: Very weakKanagawaJapan115 km (72 mi)NW of epicenterYokohama(pop: 3,777,500)II: Very weakKanagawaJapan118 km (73 mi)NW of epicenterChigasaki(pop: 242,800)II: Very weakKanagawaJapan121 km (75 mi)NW of epicenterHiratsuka(pop: 258,400)II: Very weakKanagawaJapan122 km (76 mi)N of epicenterKawasaki(pop: 1,538,300)II: Very weakKanagawaJapan122 km (76 mi)NW of epicenterEbina(pop: 136,500)II: Very weakKoza-gun, KanagawaJapan123 km (76 mi)N of epicenterChiba(pop: 979,800)II: Very weakChibaJapan126 km (78 mi)N of epicenterOta(pop: 748,100)II: Very weakOta-ku, TokyoJapan127 km (79 mi)NW of epicenterOdawara(pop: 188,900)II: Very weakKanagawaJapan128 km (80 mi)N of epicenterYotsukaido(pop: 95,300)II: Very weakYotsukaido Shi, ChibaJapan128 km (80 mi)NW of epicenterYamato(pop: 242,100)II: Very weakKanagawaJapan129 km (80 mi)NW of epicenterIsehara(pop: 103,400)II: Very weakKanagawaJapan129 km (80 mi)NW of epicenterAtsugi(pop: 224,000)II: Very weakKanagawaJapan130 km (81 mi)NW of epicenterMinamirinkan(pop: 224,000)II: Very weakYamato-shi, KanagawaJapan132 km (82 mi)NW of epicenterHadano(pop: 163,800)II: Very weakKanagawaJapan132 km (82 mi)N of epicenterUrayasu(pop: 171,400)II: Very weakChibaJapan132 km (82 mi)N of epicenterNarashino(pop: 176,200)II: Very weakChibaJapan132 km (82 mi)NW of epicenterZama(pop: 132,300)II: Very weakKanagawaJapan140 km (87 mi)N of epicenterTokyo(pop: 9,733,300)II: Very weakTokyoJapan164 km (102 mi)N of epicenterSaitama(pop: 1,324,900)II: Very weakSaitamaJapanNotes:(*) 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 GMT2026-06-30EpicenterAgency4.0960 km37 mi15:02:30NEAR EAST COAST OF HONSHU, JAPANEMSC (European-Mediterranean Seismological Centre)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 1 km2 (0 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 1, 2026 12:02 am (GMT +9)5 minutes ago4.160 km0 km - This quake62 km SE of Tateyama, Chiba, 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 1,200 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.02 quakes per year (or 1 quake every 41.7 years)Mag. 6 or higher: 0.23 quakes per year (or 1 quake every 4.3 years)Mag. 5 or higher: 3.2 quakes per yearMag. 4 or higher: 21.1 quakes per yearMag. 3 or higher: 64 quakes per year (or 5.3 quakes per month)Mag. 2 or higher: 303 quakes per year (or 25.3 quakes per month)Mag. 1 or higher: 1,000 quakes per year (or 2.8 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 3 quakes above magnitude 7 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