Moderate magnitude 4.2 earthquake at 358 km depth1 Oct 03:31 UTC: First to report: NIED after 11 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeOct 1, 2026 03:20:28 UTC - Local time at epicenterThursday, Oct 1, 2026, at 12:20 pm (GMT +9)Statusconfirmed (manually revised)Magnitude4.2Depth358 kmEpicenter latitude / longitude33.819°N / 137.527°EJapanSeismic antipode33.819°S / 42.473°WShaking intensityNot feltPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoKozushima (156 km / 97 mi)Weather at epicenter at time of quakeClear Sky 24.8°C (77 F), humidity: 77%, wind: 5 m/s (9 kts) from WEstimated 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 energy19 minutes agoOct 1, 2026 03:20 GMT / Oct 1, 2026 12:20 pm (GMT +9)Lat / Lng: 33.819 / 137.527: Japan: Far S Off Shizuoka PrefSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-23402586',33.81900,137.52700,'19 minutes ago: Mag. 4.2, Japan: Far S Off Shizuoka Pref',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 86 km (53 mi) distance to the northwest, but it is unlikely that the quake was felt there. DistancePlaceMax. shaking intensity(*)RegionCountry86 km (53 mi)NW of epicenterShima(pop: 47,800)I: Not feltMie-kenJapan96 km (60 mi)N of epicenterArai(pop: 17,000)I: Not feltKosai Shi, ShizuokaJapan97 km (60 mi)NW of epicenterToba(pop: 17,700)I: Not feltMie-kenJapan97 km (61 mi)N of epicenterTahara(pop: 60,200)I: Not feltAichi-kenJapan98 km (61 mi)N of epicenterKosai(pop: 59,800)I: Not feltShizuokaJapan100 km (62 mi)N of epicenterHamamatsu(pop: 791,700)I: Not feltShizuokaJapan102 km (64 mi)N of epicenterIwata(pop: 166,700)I: Not feltShizuokaJapan106 km (66 mi)NW of epicenterIse(pop: 123,500)I: Not feltMie-kenJapan106 km (66 mi)N of epicenterToyohashi(pop: 377,500)I: Not feltAichi-kenJapan110 km (68 mi)N of epicenterFukuroi(pop: 88,400)I: Not feltShizuokaJapan112 km (69 mi)N of epicenterToyokawa(pop: 184,700)I: Not feltAichi-kenJapan112 km (69 mi)N of epicenterHamakita(pop: 86,500)I: Not feltHamamatsu Shi, ShizuokaJapan112 km (70 mi)NE of epicenterKikugawa(pop: 48,500)I: Not feltShizuokaJapan115 km (71 mi)NE of epicenterKakegawa(pop: 117,900)I: Not feltShizuokaJapan116 km (72 mi)N of epicenterGamagori(pop: 80,100)I: Not feltAichi-kenJapan124 km (77 mi)NW of epicenterMatsusaka(pop: 159,100)I: Not feltMie-kenJapan125 km (77 mi)N of epicenterNishio(pop: 170,000)I: Not feltAichi-kenJapan126 km (78 mi)NE of epicenterShimada(pop: 95,700)I: Not feltShizuokaJapan128 km (80 mi)NW of epicenterHekinan(pop: 72,500)I: Not feltAichi-kenJapan130 km (81 mi)N of epicenterOkazaki(pop: 384,700)I: Not feltAichi-kenJapan130 km (81 mi)NW of epicenterHanda(pop: 117,900)I: Not feltAichi-kenJapan133 km (83 mi)N of epicenterAnjo(pop: 188,700)I: Not feltAnjo Shi, Aichi-kenJapan135 km (84 mi)NE of epicenterFujieda(pop: 145,000)I: Not feltShizuokaJapan138 km (86 mi)NE of epicenterYaizu(pop: 139,600)I: Not feltShizuokaJapan138 km (86 mi)NW of epicenterTsu(pop: 274,500)I: Not feltMie-kenJapan139 km (86 mi)N of epicenterKariya(pop: 153,800)I: Not feltAichi-kenJapan139 km (86 mi)N of epicenterChiryu(pop: 72,200)I: Not feltAichi-kenJapan144 km (89 mi)N of epicenterObu(pop: 93,100)I: Not feltObu Shi, Aichi-kenJapan145 km (90 mi)N of epicenterToyota(pop: 426,200)I: Not feltAichi-kenJapan145 km (90 mi)NW of epicenterChita(pop: 84,400)I: Not feltAichi-kenJapan145 km (90 mi)NW of epicenterTokai(pop: 113,800)I: Not feltTokai Shi, Aichi-kenJapan147 km (91 mi)NW of epicenterSuzuka(pop: 195,700)I: Not feltMie-kenJapan151 km (94 mi)NE of epicenterShizuoka(pop: 693,400)I: Not feltShizuokaJapan153 km (95 mi)NW of epicenterYokkaichi(pop: 305,400)I: Not feltMie-kenJapan153 km (95 mi)N of epicenterNisshin(pop: 91,800)I: Not feltAichi-kenJapan158 km (98 mi)NW of epicenterKuwana(pop: 140,100)I: Not feltMie-kenJapan162 km (101 mi)N of epicenterNagoya(pop: 2,332,200)I: Not feltAichi-kenJapan185 km (115 mi)NW of epicenterNara-shi(pop: 367,400)I: Not feltNaraJapan201 km (125 mi)NW of epicenterOtsu(pop: 345,100)I: Not feltOtsu Shi, ShigaJapan287 km (178 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 GMT2026-10-1EpicenterAgency4.2358 km223 mi03:20:28FAR S OFF SHIZUOKA PREFNIED (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 (1 mi).[More info]Recorded aftershocks, latest first (0 quake)Oct 1, 2026 12:20 pm (GMT +9)19 minutes ago4.2358 km0 km - This quakePhilippine Sea, 100 km S of Hamamatsu, Shizuoka, JapanMain 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 170 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.04 quakes per year (or 1 quake every 25.6 years)Mag. 6 or higher: 0.21 quakes per year (or 1 quake every 4.8 years)Mag. 5 or higher: 1 quakes per year (or 1 quake every 1 years)Mag. 4 or higher: 24.2 quakes per yearMag. 3 or higher: 54 quakes per year (or 4.5 quakes per month)Mag. 2 or higher: 67 quakes per year (or 5.6 quakes per month)Mag. 1 or higher: 115 quakes per year (or 9.6 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 5 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 25 to 30 years.Number of quakes per yearPrevious quakes in the same area of this earthquake