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The quake had a great depth of 404 km (251 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 | Mie-ken | Wakayama | Aichi-kenHint: Click on the image to see different maps of this quake!Moderate magnitude 4.2 earthquake at 404 km depth17 Jul 23:33 UTC: First to report: NIED after 20 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 17, 2026 23:13:15 UTC - Local time at epicenterSaturday, Jul 18, 2026, at 08:13 am (GMT +9)Statusconfirmed (manually revised)Magnitude4.2Depth404 kmEpicenter latitude / longitude33.747°N / 136.845°EJapanSeismic antipode33.747°S / 43.155°WShaking intensityNot feltPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoNanzaki (206 km / 128 mi)Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | equivalent to ONE quake of magnitude 4.2 | about seismic energy20 minutes agoJul 17, 2026 23:13 GMT / Jul 18, 2026 08:13 am (GMT +9)Lat / Lng: 33.747 / 136.845: Japan: SE Off Kii PeninsulaSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23194264',33.74700,136.84500,'20 minutes ago: Mag. 4.2, Japan: SE Off Kii Peninsula',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 near the epicenter is Shima, a town with 48,000 inhabitants in Japan, in 65 km (41 mi) distance to the north, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry65 km (41 mi)N of epicenterShima(pop: 47,800)I: Not feltMie-kenJapan68 km (43 mi)N of epicenterMinamiise(pop: 11,000)I: Not feltWatarai-gun, Mie-kenJapan69 km (43 mi)W of epicenterKumano(pop: 16,200)I: Not feltMie-kenJapan69 km (43 mi)NW of epicenterOwase(pop: 16,900)I: Not feltMie-kenJapan70 km (43 mi)NW of epicenterKihoku(pop: 14,600)I: Not feltKitamuro-gun, Mie-kenJapan74 km (46 mi)W of epicenterShimo-ichigi(pop: 8,080)I: Not feltMinamimuro-gun, Mie-kenJapan74 km (46 mi)NW of epicenterSaki(pop: 7,820)I: Not feltWatarai-gun, Mie-kenJapan77 km (48 mi)W of epicenterUdono(pop: 10,300)I: Not feltMinamimuro-gun, Mie-kenJapan80 km (50 mi)W of epicenterShingu(pop: 27,500)I: Not feltShingu Shi, WakayamaJapan82 km (51 mi)N of epicenterToba(pop: 17,700)I: Not feltMie-kenJapan83 km (52 mi)N of epicenterIse(pop: 123,500)I: Not feltMie-kenJapan84 km (52 mi)N of epicenterTamaru(pop: 15,000)I: Not feltWatarai-gun, Mie-kenJapan90 km (56 mi)N of epicenterSaiku(pop: 22,400)I: Not feltTaki-gun, Mie-kenJapan97 km (60 mi)N of epicenterMatsusaka(pop: 159,100)I: Not feltMie-kenJapan114 km (71 mi)N of epicenterTsu(pop: 274,500)I: Not feltMie-kenJapan119 km (74 mi)NW of epicenterNabari(pop: 77,000)I: Not feltMie-kenJapan124 km (77 mi)NE of epicenterToyohashi(pop: 377,500)I: Not feltAichi-kenJapan126 km (78 mi)N of epicenterNishio(pop: 170,000)I: Not feltAichi-kenJapan126 km (79 mi)NW of epicenterKashiwara(pop: 120,900)I: Not feltGose Shi, NaraJapan127 km (79 mi)N of epicenterHanda(pop: 117,900)I: Not feltAichi-kenJapan129 km (80 mi)N of epicenterSuzuka(pop: 195,700)I: Not feltMie-kenJapan129 km (80 mi)NW of epicenterKashihara-shi(pop: 124,500)I: Not feltKashihara-shi, NaraJapan129 km (80 mi)NE of epicenterToyokawa(pop: 184,700)I: Not feltAichi-kenJapan130 km (81 mi)NW of epicenterIga(pop: 88,900)I: Not feltMie-kenJapan134 km (83 mi)NE of epicenterHamamatsu(pop: 791,700)I: Not feltShizuokaJapan136 km (85 mi)N of epicenterAnjo(pop: 188,700)I: Not feltAnjo Shi, Aichi-kenJapan137 km (85 mi)N of epicenterOkazaki(pop: 384,700)I: Not feltAichi-kenJapan137 km (85 mi)N of epicenterYokkaichi(pop: 305,400)I: Not feltMie-kenJapan138 km (86 mi)N of epicenterKariya(pop: 153,800)I: Not feltAichi-kenJapan140 km (87 mi)NW of epicenterKawachi-Nagano(pop: 101,700)I: Not feltOsakaJapan141 km (87 mi)NE of epicenterIwata(pop: 166,700)I: Not feltShizuokaJapan142 km (88 mi)NW of epicenterNara-shi(pop: 367,400)I: Not feltNaraJapan142 km (88 mi)NW of epicenterTondabayashicho(pop: 132,900)I: Not feltTondabayashi Shi, OsakaJapan160 km (99 mi)N of epicenterNagoya(pop: 2,332,200)I: Not feltAichi-kenJapan162 km (101 mi)NW of epicenterOsaka(pop: 2,753,900)I: Not feltOsakaJapan164 km (102 mi)W of epicenterWakayama(pop: 356,700)I: Not feltWakayamaJapan166 km (103 mi)NW of epicenterOtsu(pop: 345,100)I: Not feltOtsu Shi, ShigaJapan174 km (108 mi)NW of epicenterKyoto(pop: 1,463,700)I: Not feltKyōto, KyotoJapan185 km (115 mi)NW of epicenterKobe(pop: 1,525,200)I: Not feltKobe Shi, HyōgoJapan338 km (210 mi)NE of epicenterTokyo(pop: 9,733,300)I: 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 GMT2026-07-17EpicenterAgency4.2404 km251 mi23:13:15SE OFF KII PENINSULANIED (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: Shizuoka Sagara (JSG/JP network) | Distance from quake: 161 km / 100 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: Inuyama, Japan (INU/PS network) | Distance from quake: 179 km / 111 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 (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 18, 2026 08:13 am (GMT +9)20 minutes ago4.2404 km0 km - This quakeJapan: SE Off Kii PeninsulaMain 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 449 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: 0.16 quakes per year (or 1 quake every 6.1 years)Mag. 5 or higher: 1.37 quakes per yearMag. 4 or higher: 22 quakes per yearMag. 3 or higher: 45 quakes per year (or 3.8 quakes per month)Mag. 2 or higher: 61 quakes per year (or 5.1 quakes per month)Mag. 1 or higher: 140 quakes per year (or 11.7 quakes per month)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