Moderate magnitude 4.0 earthquake at 5 km depth28 Mar 17:58 UTC: First to report: NIED after 7 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeMar 28, 2026 17:50:51 UTC - Local time at epicenterSunday, Mar 29, 2026, at 02:50 am (GMT +9)Statusconfirmed (manually revised)Magnitude4.0Depth5 kmEpicenter latitude / longitude28.119°N / 128.056°EJapanSeismic antipode28.119°S / 51.944°WBrazilShaking intensityIV Light shaking near epicenterFelt0 reportsPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Nearest volcanoIo-Torishima (32 km / 20 mi)Weather at epicenter at time of quakeClear Sky 20.2°C (68 F), humidity: 60%, wind: 4 m/s (8 kts) from EEstimated seismic energy released6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) | equivalent to ONE quake of magnitude 4.0 | about seismic energy10 minutes agoMar 28, 2026 17:50 GMT / Mar 29, 2026 02:50 am (GMT +9)Lat / Lng: 28.119 / 128.056: Japan: NW Off Okinawajima ISSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22851823',28.11900,128.05600,'10 minutes ago: Mag. 4.0, Japan: NW Off Okinawajima IS',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 Isen, a town with 6,600 inhabitants in Japan, in 100 km (62 mi) distance southeast of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry89 km (56 mi)E of epicenterAmagi(pop: 6,350)II: Very weakOshima-gun, Kagoshima-kenJapan100 km (62 mi)SE of epicenterIsen(pop: 6,590)II: Very weakOshima-gun, Kagoshima-kenJapan101 km (63 mi)SE of epicenterWadomari(pop: 6,930)II: Very weakOshima-gun, Kagoshima-kenJapan104 km (65 mi)E of epicenterTokuwase(pop: 10,100)II: Very weakOshima-gun, Kagoshima-kenJapan117 km (73 mi)E of epicenterUken(pop: 1,840)II: Very weakOshima-gun, Kagoshima-kenJapan123 km (76 mi)S of epicenterIheya(pop: 1,210)II: Very weakOkinawaJapan124 km (77 mi)S of epicenterChabana(pop: 5,120)II: Very weakOshima-gun, Kagoshima-kenJapan125 km (78 mi)E of epicenterSeisui(pop: 8,550)II: Very weakOshima-gun, Kagoshima-kenJapan134 km (83 mi)S of epicenterIzena(pop: 1,520)II: Very weakShimajiri-gun, OkinawaJapan143 km (89 mi)E of epicenterNaze(pop: 41,400)II: Very weakAmami Shi, Kagoshima-kenJapan144 km (89 mi)E of epicenterAmami(pop: 41,400)II: Very weakKagoshima-kenJapan152 km (94 mi)S of epicenterKunigami(pop: 4,910)II: Very weakOkinawaJapan156 km (97 mi)E of epicenterTatsugo(pop: 5,990)II: Very weakOshima-gun, Kagoshima-kenJapan159 km (99 mi)S of epicenterIe(pop: 4,190)II: Very weakKunigami-gun, OkinawaJapan163 km (101 mi)S of epicenterMotobu(pop: 13,400)II: Very weakKunigami-gun, OkinawaJapan167 km (104 mi)S of epicenterNago(pop: 63,600)II: Very weakOkinawaJapan182 km (113 mi)S of epicenterOnna(pop: 10,900)I: Not feltKunigami-gun, OkinawaJapan185 km (115 mi)E of epicenterAkaren(pop: 6,630)I: Not feltOshima-gun, Kagoshima-kenJapan186 km (116 mi)S of epicenterKin(pop: 11,300)I: Not feltKunigami-gun, OkinawaJapan190 km (118 mi)S of epicenterIshikawa(pop: 22,400)I: Not feltUruma Shi, OkinawaJapan193 km (120 mi)S of epicenterYomitan(pop: 41,200)I: Not feltNakagami, OkinawaJapan195 km (121 mi)S of epicenterUruma(pop: 125,300)I: Not feltOkinawaJapan197 km (122 mi)S of epicenterGushikawa(pop: 65,300)I: Not feltUruma Shi, OkinawaJapan197 km (123 mi)S of epicenterKadena(pop: 13,700)I: Not feltNakagami, OkinawaJapan199 km (124 mi)S of epicenterKatsuren-haebaru(pop: 34,200)I: Not feltUruma Shi, OkinawaJapan200 km (124 mi)S of epicenterOkinawa(pop: 142,800)I: Not feltOkinawaJapan203 km (126 mi)S of epicenterChatan(pop: 28,200)I: Not feltNakagami, OkinawaJapan204 km (127 mi)S of epicenterKishaba(pop: 18,000)I: Not feltNakagami, OkinawaJapan208 km (130 mi)S of epicenterGinowan(pop: 100,100)I: Not feltOkinawaJapan209 km (130 mi)S of epicenterUrasoe(pop: 115,700)I: Not feltOkinawaJapan210 km (130 mi)S of epicenterNakagusuku(pop: 22,200)I: Not feltNakagami, OkinawaJapan210 km (130 mi)S of epicenterNishihara(pop: 35,000)I: Not feltUrasoe Shi, OkinawaJapan215 km (134 mi)S of epicenterYonabaru(pop: 19,700)I: Not feltShimajiri-gun, OkinawaJapan215 km (134 mi)S of epicenterNaha(pop: 317,600)I: Not feltOkinawaJapan216 km (134 mi)S of epicenterKanegusuku(pop: 40,400)I: Not feltShimajiri-gun, OkinawaJapan218 km (136 mi)S of epicenterTomigusuku(pop: 64,600)I: Not feltOkinawaJapan222 km (138 mi)S of epicenterNanjo(pop: 44,000)I: Not feltNanjo Shi, OkinawaJapan224 km (139 mi)S of epicenterYaese(pop: 30,900)I: Not feltShimajiri-gun, OkinawaJapan225 km (140 mi)S of epicenterItoman(pop: 61,000)I: Not feltOkinawaJapan9908 km (6156 mi)NE of epicenterLivingston(pop: 7,300): Not feltPark County, MontanaUnited StatesNotes:(*) 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 GMT2026-03-28EpicenterAgency4.05 km3.1 mi17:50:51NW OFF OKINAWAJIMA ISNIED (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 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)Mar 29, 2026 02:50 am (GMT +9)10 minutes ago4.05 km0 km - This quakeEast China Sea, 96 km NW of Tokuno Shima Island, Kagoshima-ken, 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 373 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.13 quakes per year (or 1 quake every 7.7 years)Mag. 5 or higher: 1.39 quakes per yearMag. 4 or higher: 15.4 quakes per yearMag. 3 or higher: 66 quakes per year (or 5.5 quakes per month)Mag. 2 or higher: 193 quakes per year (or 16.1 quakes per month)Mag. 1 or higher: 354 quakes per year (or 29.5 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 17 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 1 hour and 11 minutes after a magnitude 4.2 earthquake had hit on Sunday, Mar 29, 2026, at 01:39 am (GMT +9 local time) in 3.4 km (2.1 mi) distance to the west:Mag. 4.2 earthquake East China Sea - Kagoshima-ken, Japan - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.5. It had occurred 6 years earlier, on Sunday, Jun 14, 2020, at 12:51 am (GMT +9 local time) in Kagoshima-ken, Japan:Mag. 6.5 earthquake East China Sea - Kagoshima-ken, Japan - Jun 14, 2020 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.9. It had occurred 115 years ago earlier, on Thursday, Jun 15, 1911, at 02:25 pm local time (Universal Time GMT +0) in Kagoshima-ken, Japan:Mag. 7.9 earthquake East China Sea - Kagoshima-ken, Japan - Jun 15, 1911 - Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.Max results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageDate and TimeMagDepthDistanceLocationDetailsMapMar 29, 01:39 am (GMT +9)4.28.2 km3.4 km (2.1 mi) to the WEast China Sea, 99 km northwest of Tokuno Shima Island, Kagoshima-ken, Japan I FELT ITInfoFeb 7, 11:11 pm (GMT +9)4.029 km64 km (40 mi) to the EEast China Sea, 32 km northwest of Amagi, Kagoshima-ken, JapanInfoDec 31, 2025 04:43 pm (GMT +9)4.120 km79 km (49 mi) to the SEEast China Sea, 26 km west of Tokuno Shima Island, Kagoshima-ken, JapanInfoDec 30, 2025 05:48 pm (GMT +9)4.110 km79 km (49 mi) to the SEEast China Sea, 26 km west of Tokuno Shima Island, Kagoshima-ken, Japan 1 reportInfoDec 30, 2025 05:23 pm (GMT +9)4.110 km93 km (58 mi) to the SEEast China Sea, 24 km southwest of Tokuno Shima Island, Kagoshima-ken, Japan 1 reportInfoJun 14, 2020 12:51 am (GMT +9)6.5159 km90 km (56 mi) to the NEast China Sea, 136 km northwest of Naze, Kagoshima-ken, Japan 133 reportsInfoAug 16, 2017 09:51 pm (GMT +9)5.6189 km76 km (47 mi) to the NEast China Sea, 286 km north of Naha, Okinawa, JapanInfoSep 26, 2016 02:19 pm (GMT +9)5.643 km92 km (57 mi) to the SEEast China Sea, 135 km southwest of Naze, Kagoshima-ken, Japan 2 reportsInfoMay 27, 2016 12:46 pm (GMT +9)5.510 km71 km (44 mi) to the SEEast China Sea, 34 km north of Okinoerabujima Island, Kagoshima-ken, JapanInfoOct 22, 2014 09:15 am (GMT +9)5.746 km82 km (51 mi) to the SEEast China Sea, 17 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoAug 3, 2014 01:06 pm (GMT +9)5.710 km4 km (2.5 mi) to the WEast China Sea, 147 km west of Naze, Kagoshima-ken, JapanInfoFeb 27, 2010 05:31 am (GMT +9)7.025 km246 km (153 mi) to the S Ryukyu Islands, JapanInfoSep 29, 2009 04:22 am (GMT +9)5.89 km31 km (20 mi) to the SWEast China Sea, 99 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoJul 8, 2008 04:42 pm (GMT +9)6.043 km71 km (44 mi) to the SE Ryukyu Islands, JapanInfoApr 21, 2007 04:37 am (GMT +9)5.742 km79 km (49 mi) to the SE 102 km NNE of Nago, JapanInfoSep 28, 2003 07:12 am (GMT +9)5.710 km85 km (53 mi) to the NEast China Sea, 118 km northwest of Naze, Kagoshima-ken, JapanInfoOct 3, 1998 08:15 pm (GMT +9)6.2227 km61 km (38 mi) to the NWEast China Sea, 154 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoJun 2, 1996 06:37 pm (GMT +9)5.842 km88 km (55 mi) to the SEEast China Sea, 13 km west of Okinoerabujima Island, Kagoshima-ken, JapanInfoOct 18, 1995 07:37 pm (GMT +9)7.128 km209 km (130 mi) to the EPhilippine Sea, 84 km southeast of Naze, Kagoshima-ken, JapanInfoAug 17, 1995 05:58 am (GMT +9)5.721 km38 km (24 mi) to the NEast China Sea, 115 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoJan 15, 1995 11:40 am (GMT +9)5.647 km78 km (49 mi) to the SEEast China Sea, 21 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoJun 4, 1992 01:04 pm (GMT +9)6.017 km11 km (7 mi) to the SEast China Sea, 90 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoJun 3, 1992 10:55 am (GMT +9)5.656 km5.5 km (3.4 mi) to the SEEast China Sea, 91 km west of Tokuno Shima Island, Kagoshima-ken, JapanInfoJun 16, 1990 01:53 pm (GMT +9)6.027 km16 km (9.7 mi) to the SWEast China Sea, 93 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoMar 1, 1985 05:53 am (GMT +9)6.160 km83 km (51 mi) to the SEEast China Sea, 18 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoAug 29, 1984 04:04 am (GMT +9)5.858 km89 km (55 mi) to the SEEast China Sea, 10.1 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoFeb 6, 1973 02:30 pm (GMT +9)5.781 km45 km (28 mi) to the SWEast China Sea, 106 km northwest of Okinoerabujima Island, Kagoshima-ken, JapanInfoMar 19, 1969 10:59 pm (GMT +9)6.5169 km83 km (51 mi) to the NEEast China Sea, 112 km northwest of Naze, Kagoshima-ken, JapanInfoSep 21, 1965 10:38 am (GMT +9)6.6198 km94 km (58 mi) to the NEast China Sea, 139 km northwest of Naze, Kagoshima-ken, JapanInfoFeb 28, 1959 05:56 am (GMT +9)6.050 km94 km (58 mi) to the SEKagoshima-ken, 102 km northeast of Nago, Okinawa, JapanInfoDec 21, 1958 04:20 am (GMT +9)6.135 km77 km (48 mi) to the NWEast China Sea, 169 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoDec 18, 1958 12:34 am (GMT +9)6.035 km79 km (49 mi) to the NWEast China Sea, 172 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoDec 17, 1944 07:18 am (Universal Time)6.148 km85 km (53 mi) to the SEEast China Sea, 17 km north of Okinoerabujima Island, Kagoshima-ken, JapanInfoMar 21, 1942 11:20 pm (Universal Time)7.025 km295 km (183 mi) to the NEPhilippine Sea, Kagoshima-ken, 120 km southeast of Suwanose-jima Island, JapanInfoJun 16, 1938 02:15 am (Universal Time)7.620 km149 km (92 mi) to the EPhilippine Sea, 54 km east of Tokuno Shima Island, Kagoshima-ken, JapanInfoDec 2, 1935 04:42 pm (Universal Time)6.320 km47 km (29 mi) to the NEast China Sea, 124 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoDec 1, 1935 11:45 pm (Universal Time)6.420 km90 km (56 mi) to the NEast China Sea, 142 km northwest of Naze, Kagoshima-ken, JapanInfoJun 3, 1933 05:09 pm (Universal Time)6.115 km58 km (36 mi) to the EEast China Sea, 60 km northwest of Tokuno Shima Island, Kagoshima-ken, JapanInfoNov 5, 1923 09:28 pm (Universal Time)7.235 km238 km (148 mi) to the NE Ryukyu Islands, JapanInfoNov 3, 1923 04:19 pm (Universal Time)7.035 km215 km (133 mi) to the NE Ryukyu Islands, JapanInfoJul 4, 1914 05:47 pm (Universal Time)6.215 km90 km (56 mi) to the NEEast China Sea, 67 km west of Naze, Kagoshima-ken, JapanInfoJun 15, 1911 02:25 pm (Universal Time)7.9150 km135 km (84 mi) to the NE 108 km NW of Naze, JapanInfoAug 25, 1904 05:59 am (GMT +9)7.90 km282 km (175 mi) to the NEEast China Sea, Kagoshima-ken, 49 km northeast of Suwanose-jima Island, JapanInfoJun 24, 1901 04:02 pm (GMT +9)7.90 km229 km (142 mi) to the SEPhilippine Sea, 135 km southeast of Tokuno Shima Island, Kagoshima-ken, JapanInfoApr 24, 1900 11:16 pm (Universal Time)7.335 km198 km (123 mi) to the SWEast China Sea, 124 km northwest of Tokashiki Jima Island, Okinawa, JapanInfoMap of earlier quakes in the area of this quakeMax results102050100AllMagnitudeAll2+3+4+5+6+7+8+Time before48 hours1 week30 days1 year5 years30 yearsAny ageOldest quakes are shown in yellow, most recent in red.[quakes -][quakes +][smaller][bigger]