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The quake had a shallow depth of 40 km (25 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 | Chiba | Ibaraki | TokyoHint: Click on the image to see different maps of this quake!Moderate magnitude 4.3 earthquake at 40 km depth17 Jul 19:54 UTC: First to report: RaspberryShake after 9 minutes.17 Jul 19:56: Now using data updates from EMSCI didn't feel itI felt this quakeEarthquake detailsDate & timeJul 17, 2026 19:45:30 UTC - Local time at epicenterSaturday, Jul 18, 2026, at 04:45 am (GMT +9)StatusconfirmedMagnitude4.30Depth40 kmEpicenter latitude / longitude35.7°N / 141.1°EKamisu-shi, Ibaraki, JapanSeismic antipode35.7°S / 38.9°WShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoTakahara (178 km / 111 mi)Weather at epicenter at time of quakeOvercast Clouds 25.4°C (78 F), humidity: 85%, wind: 5 m/s (10 kts) from SEEstimated 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 energy20 minutes agoJul 17, 2026 19:45 GMT / Jul 18, 2026 04:45 am (GMT +9)Lat / Lng: 35.7 / 141.1: Near East Coast OF Honshu, JapanSource: EMSCOther sources: RaspberryShake: 4.3 / 40 km, NIED: 4.1 / 36 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23193865',35.70000,141.10000,'20 minutes ago: Mag. 4.3, 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 Mito, a city with more than 270,000 inhabitants in Japan, in 93 km (58 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, 127 km (79 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(*)RegionCountry24 km (15 mi)W of epicenterHasaki(pop: 39,200)III: WeakChoshi Shi, ChibaJapan24 km (15 mi)W of epicenterChoshi(pop: 58,400)III: WeakChoshi Shi, ChibaJapan41 km (25 mi)W of epicenterAsahi(pop: 64,700)III: WeakChibaJapan42 km (26 mi)W of epicenterSukayama(pop: 13,200)III: WeakKatori-gun, ChibaJapan45 km (28 mi)NW of epicenterKamisu(pop: 95,500)III: WeakIbarakiJapan47 km (29 mi)W of epicenterOmigawa(pop: 25,800)III: WeakKatori-shi, ChibaJapan49 km (31 mi)W of epicenterSosa(pop: 35,700)III: WeakSosa Shi, ChibaJapan50 km (31 mi)W of epicenterYokaichiba(pop: 32,700)III: WeakSosa Shi, ChibaJapan51 km (31 mi)NW of epicenterKashima-shi(pop: 67,000)III: WeakIbarakiJapan56 km (35 mi)NW of epicenterItako(pop: 27,600)III: WeakIbarakiJapan56 km (35 mi)W of epicenterYokoshiba(pop: 22,100)III: WeakSambu-gun, ChibaJapan58 km (36 mi)W of epicenterSawara(pop: 47,200)III: WeakKatori-shi, ChibaJapan59 km (36 mi)W of epicenterKatori-shi(pop: 74,500)III: WeakChibaJapan62 km (39 mi)W of epicenterSanmu(pop: 48,400)III: WeakChibaJapan63 km (39 mi)W of epicenterNaruto(pop: 25,700)III: WeakSanmu Shi, ChibaJapan64 km (40 mi)NW of epicenterNamegata(pop: 32,200)III: WeakIbarakiJapan66 km (41 mi)W of epicenterRyogoku(pop: 49,700)III: WeakTomisato-shi, ChibaJapan68 km (42 mi)W of epicenterTogane(pop: 66,300)III: WeakTogane Shi, ChibaJapan71 km (44 mi)W of epicenterOamishirasato(pop: 48,100)III: WeakOamishirasato-shi, ChibaJapan71 km (44 mi)W of epicenterYachimata(pop: 68,800)III: WeakChibaJapan71 km (44 mi)W of epicenterNarita(pop: 132,900)III: WeakChibaJapan73 km (45 mi)NW of epicenterHokota(pop: 46,000)III: WeakIbarakiJapan74 km (46 mi)W of epicenterOami(pop: 53,200)III: WeakSambu-gun, ChibaJapan75 km (47 mi)W of epicenterShisui(pop: 20,700)III: WeakImba-gun, ChibaJapan76 km (47 mi)W of epicenterInashiki(pop: 47,000)III: WeakIbarakiJapan76 km (47 mi)W of epicenterEdosaki(pop: 20,800)III: WeakInashiki Shi, IbarakiJapan78 km (49 mi)W of epicenterSakura(pop: 173,700)III: WeakChibaJapan79 km (49 mi)W of epicenterMobara(pop: 88,300)II: Very weakChibaJapan80 km (49 mi)W of epicenterAjiki(pop: 20,100)II: Very weakImba-gun, ChibaJapan81 km (51 mi)SW of epicenterOhara(pop: 20,200)II: Very weakIsumi Shi, ChibaJapan82 km (51 mi)SW of epicenterIsumi(pop: 35,500)II: Very weakChibaJapan83 km (51 mi)NW of epicenterOarai(pop: 15,800)II: Very weakHigashiibaraki-gun, IbarakiJapan89 km (56 mi)NW of epicenterOkunoya(pop: 34,600)II: Very weakHigashiibaraki-gun, IbarakiJapan89 km (56 mi)NW of epicenterOmitama(pop: 48,900)II: Very weakIbarakiJapan91 km (57 mi)NW of epicenterKatsuta(pop: 156,000)II: Very weakHitachinaka Shi, IbarakiJapan92 km (57 mi)NW of epicenterKasumigaura(pop: 40,100)II: Very weakIbarakiJapan92 km (57 mi)NW of epicenterIshioka(pop: 73,100)II: Very weakIbarakiJapan93 km (58 mi)NW of epicenterHitachi-Naka(pop: 156,600)II: Very weakHitachinaka Shi, IbarakiJapan93 km (58 mi)NW of epicenterMito(pop: 270,700)II: Very weakIbarakiJapan127 km (79 mi)W of epicenterTokyo(pop: 9,733,300)II: Very weakTokyoJapanNotes:(*) 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 GMT2026-07-17EpicenterAgency4.340 km25 mi19:45:30NEAR EAST COAST OF HONSHU, JAPANEMSC (European-Mediterranean Seismological Centre)4.340 km25 mi19:45:00Near East Coast of Honshu, Japan0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)4.136 km23 mi19:45:16NEAR CHOSHI CITY3.6 km (2.2 mi) epicenter difference with EMSCNIED (National Research Institute for Earth Science and Disaster Resilience)"; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}]]>SeismogramsSeismic station: Ibaraki Yasato (JYT/JP network) | Distance from quake: 101 km / 63 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: 0.2-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: Miyagi Marumori (JMM/JP network) | Distance from quake: 243 km / 151 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 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)Jul 18, 2026 04:45 am (GMT +9)20 minutes ago4.340 km0 km - This quakeNear East Coast OF Honshu, JapanMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquake20 minutes agoJul 17, 2026 19:45 GMT / Jul 18, 2026 04:45 am (GMT +9)Lat / Lng: 35.7 / 141.1: Near East Coast OF Honshu, JapanSource: EMSCOther sources: RaspberryShake: 4.3 / 40 km, NIED: 4.1 / 36 kmDetail info | You felt it? - Report it!',4.3,43, '#bb202a', 0.9,1.5, '#bb202a', 0.27);map2.addToMap('thisQuake',35.7,141.1,'20 minutes ago: Mag. 4.3, Near East Coast OF Honshu, Japan','Earthquake: Mag 4.3 / 40 km (25 mi) depth20 minutes agoJul 17, 2026 19:45 GMT / Jul 18, 2026 04:45 am (GMT +9)Lat / Lng: 35.7 / 141.1: Near East Coast OF Honshu, JapanSource: EMSCOther sources: RaspberryShake: 4.3 / 40 km, NIED: 4.1 / 36 kmDetail info | You felt it? - Report it!','default'); // this will be local to this table obj function putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex) { qTableOlder.putQuakeOnMap(id,lat,lon,time,title,html,mag,zIndex); } map2.circleScale=0.5;qTableOlder.usePalette=1;qTableOlder.startVal=qTableOlder.referenceTime-(80*365.25*86400);qTableOlder.endVal=qTableOlder.referenceTime; qTableOlder.assignMap(map2); (async function(){await new Promise(r => setTimeout(r,4000));map2.map.setZoom(7)})(); })(); (async function(){while(typeof mkRequest=="undefined")await new Promise(r=>setTimeout(r,500));mkRequest("https://server2.allquakes.com/api/getPrevious.php?quakeId=23193865","get","",function(httpObj){let r=httpObj.responseText,d=document;if(""!=r&&200==httpObj.status){let o=JSON.parse(r);if(!o){d.getElementById("olderQuakesSection").remove();return};let table=d.getElementById("qTableOlder");table.innerHTML+=o.tableRows,qTableOlder.alternateBg(),d.getElementById("placeholder_largestQText").innerHTML=o.html,d.getElementById("sectionPreviousCWrap").style.display="",eval(o.js)}})})();]]>Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.