Moderate magnitude 4.3 earthquake at 38 km depth1 Aug 12:58 UTC: First to report: NIED after 6 minutes.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 1, 2025 12:52:03 UTC - Local time at epicenterFriday, Aug 1, 2025, at 10:52 pm (GMT +10)Statusconfirmed (manually revised)Magnitude4.3Depth37.7 kmEpicenter latitude / longitude39.449°N / 144.102°EJapanSeismic antipode39.449°S / 35.898°WShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)Weather at epicenter at time of quakeOvercast Clouds 25.1°C (77 F), humidity: 93%, wind: 8 m/s (15 kts) from ESEEstimated 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 energy16 minutes agoAug 1, 2025 12:52 GMT / Aug 1, 2025 10:52 pm (GMT +10)Lat / Lng: 39.449 / 144.102: Japan: Far E Off SanrikuSource: NIEDDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22013365',39.44900,144.10200,'16 minutes ago: Mag. 4.3, Japan: Far E Off Sanriku',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 Yamada, a town with 15,000 inhabitants in Japan, in 185 km (115 mi) distance west of the epicenter. People likely experienced very weak shaking there. In the capital of Japan, Tokyo, 571 km (355 mi) away from the epicenter, the earthquake could not be felt.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry185 km (115 mi)W of epicenterYamada(pop: 15,200)II: Very weakShimohei-gun, IwateJapan187 km (116 mi)W of epicenterMiyako(pop: 51,200)II: Very weakIwateJapan193 km (120 mi)W of epicenterKamaishi(pop: 43,100)II: Very weakIwateJapan210 km (130 mi)W of epicenterOfunato(pop: 35,500)II: Very weakOfunato-shi, IwateJapan216 km (134 mi)NW of epicenterKuji(pop: 34,400)II: Very weakIwateJapan216 km (134 mi)W of epicenterRikuzen-Takata(pop: 18,300)II: Very weakIwateJapan221 km (138 mi)W of epicenterTono(pop: 26,100)II: Very weakTono Shi, IwateJapan251 km (156 mi)NW of epicenterHachinohe(pop: 239,000)II: Very weakAomoriJapan255 km (158 mi)W of epicenterMorioka(pop: 290,700)II: Very weakIwateJapan256 km (159 mi)W of epicenterNinohe(pop: 23,500)II: Very weakIwateJapan257 km (159 mi)W of epicenterHanamaki(pop: 94,700)II: Very weakIwateJapan257 km (160 mi)W of epicenterTakizawa(pop: 55,300)I: Not feltIwateJapan257 km (160 mi)W of epicenterKitakami(pop: 92,300)I: Not feltIwateJapan258 km (160 mi)W of epicenterMizusawa(pop: 61,300)I: Not feltOshu Shi, IwateJapan259 km (161 mi)W of epicenterHachimantai(pop: 25,100)I: Not feltIwateJapan262 km (163 mi)NW of epicenterHitokawame(pop: 24,300)I: Not feltKamikita-gun, AomoriJapan263 km (163 mi)W of epicenterIchinoseki(pop: 114,500)I: Not feltIwateJapan264 km (164 mi)NW of epicenterNanaku(pop: 16,800)I: Not feltSannohe Gun, AomoriJapan267 km (166 mi)W of epicenterTome(pop: 77,900)I: Not feltMiyagiJapan268 km (167 mi)SW of epicenterIshinomaki(pop: 138,500)I: Not feltMiyagiJapan269 km (167 mi)NW of epicenterMisawa(pop: 42,800)I: Not feltAomoriJapan274 km (171 mi)SW of epicenterYamoto(pop: 32,000)I: Not feltHigashimatsushima Shi, MiyagiJapan278 km (173 mi)SW of epicenterHigashimatsushima(pop: 39,100)I: Not feltMiyagiJapan279 km (173 mi)NW of epicenterTowada(pop: 60,700)I: Not feltAomoriJapan279 km (173 mi)W of epicenterKurihara(pop: 66,600)I: Not feltMiyagiJapan287 km (178 mi)W of epicenterOsaki(pop: 128,800)I: Not feltOsaki Shi, MiyagiJapan289 km (179 mi)W of epicenterFurukawa(pop: 76,300)I: Not feltOsaki Shi, MiyagiJapan289 km (180 mi)W of epicenterSemboku(pop: 25,900)I: Not feltAkitaJapan294 km (183 mi)SW of epicenterShiogama(pop: 52,700)I: Not feltMiyagiJapan295 km (183 mi)W of epicenterHanawa(pop: 36,900)I: Not feltKazuno Shi, AkitaJapan298 km (185 mi)SW of epicenterRifu(pop: 36,000)I: Not feltMiyagi Gun, MiyagiJapan302 km (188 mi)W of epicenterTomiya(pop: 52,400)I: Not feltMiyagiJapan306 km (190 mi)W of epicenterYokote(pop: 85,600)I: Not feltAkitaJapan309 km (192 mi)SW of epicenterSendai(pop: 1,096,700)I: Not feltMiyagiJapan310 km (193 mi)W of epicenterDaisen(pop: 91,100)I: Not feltAkitaJapan316 km (196 mi)W of epicenterOdate(pop: 69,200)I: Not feltOdate-shi, AkitaJapan324 km (202 mi)NW of epicenterAomori(pop: 298,400)I: Not feltAomoriJapan334 km (208 mi)NW of epicenterHirosaki(pop: 168,700)I: Not feltAomoriJapan368 km (229 mi)SW of epicenterFukushima(pop: 294,200)I: Not feltFukushimaJapan571 km (355 mi)SW of epicenterTokyo(pop: 8,336,600)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!Compare 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 GMT2025-08-1EpicenterAgency4.338 km23 mi12:52:03FAR E OFF SANRIKUNIED (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 (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Aug 1, 2025 10:52 pm (GMT +10)16 minutes ago4.338 km0 km - This quakeNorth Pacific Ocean, 255 km E of Morioka, Iwate, JapanMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 25 years and our earthquake archive back to 1900, there are about 559 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 7 or higher: 0.06 quakes per year (or 1 quake every 17.9 years)Mag. 6 or higher: 0.85 quakes per year (or 1 quake every 1.2 years)Mag. 5 or higher: 5.1 quakes per yearMag. 4 or higher: 21.3 quakes per yearMag. 3 or higher: 55 quakes per year (or 4.6 quakes per month)Mag. 2 or higher: 152 quakes per year (or 12.7 quakes per month)Mag. 1 or higher: 518 quakes per year (or 43 quakes per month)The area where this quake occurred has a very high level of seismic activity. It has had at least 7 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 15 to 20 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 4 weeks after a magnitude 4.3 earthquake had hit on Friday, Jul 4, 2025, at 09:31 pm (GMT +9 local time) in 36 km (22 mi) distance to the west:Mag. 4.3 earthquake North Pacific Ocean - Miyagi, Japan - Jul 4, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 7.3. It had occurred 3 years earlier, on Wednesday, Mar 16, 2022, at 11:36 pm (GMT +9 local time) in North Pacific Ocean, Japan:Mag. 7.3 earthquake North Pacific Ocean - Miyagi, Japan - Mar 16, 2022 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 9.1. It had occurred 14 years ago earlier, on Friday, Mar 11, 2011, at 02:46 pm (GMT +9 local time) in North Pacific Ocean, Japan:Mag. 9.1 earthquake North Pacific Ocean - Miyagi, Japan - Mar 11, 2011 - 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 TimeMagDepthDistanceLocationDetailsMapJul 4, 09:31 pm (GMT +9)4.310 km36 km (22 mi) to the WNorth Pacific Ocean, 239 km northeast of Ishinomaki, Miyagi, JapanInfoJul 4, 10:31 pm (GMT +10)4.015 km67 km (42 mi) to the SENorth Pacific Ocean, 242 km east of Miyako, Iwate, JapanInfoApr 24, 05:42 am (GMT +10)4.010.7 km71 km (44 mi) to the E Japan: Far E Off North HonshuInfoApr 22, 01:30 pm (GMT +9)4.410 km52 km (33 mi) to the ENorth Pacific Ocean, 239 km east of Miyako, Iwate, JapanInfoDec 17, 2024 11:04 am (GMT +9)4.065 km73 km (45 mi) to the ENorth Pacific Ocean, 258 km east of Miyako, Iwate, JapanInfoOct 28, 2024 02:28 pm (GMT +10)4.535 km89 km (55 mi) to the NWNorth Pacific OceanInfoSep 26, 2024 08:49 pm (GMT +10)4.535 km74 km (46 mi) to the NW125 km E of Miyako, JapanInfoSep 12, 2024 02:03 am (GMT +10)5.061 km80 km (49 mi) to the ENorth Pacific Ocean, 334 km east of Morioka, Iwate, JapanInfoMar 16, 2022 11:36 pm (GMT +9)7.341 km292 km (182 mi) to the SWNorth Pacific Ocean, 67 km south of Tashiro Jima Island, Miyagi, Japan 101 reportsInfoFeb 13, 2021 11:07 pm (GMT +9)7.056 km289 km (180 mi) to the SWNorth Pacific Ocean, 89 km southeast of Sendai, Miyagi, Japan 472 reportsInfoFeb 21, 2015 07:13 pm (GMT +9)6.019 km69 km (43 mi) to the NWNorth Pacific Ocean, 131 km east of Miyako, Iwate, JapanInfoFeb 20, 2015 01:25 pm (GMT +9)6.212 km65 km (40 mi) to the NWNorth Pacific Ocean, 138 km east of Miyako, Iwate, Japan 1 reportInfoOct 26, 2013 02:10 am (GMT +9)7.135 km260 km (161 mi) to the SNorth Pacific Ocean, 474 km east of Tokyo, Tokyo, Japan 20 reportsInfoApr 2, 2013 03:53 am (GMT +9)6.014 km81 km (50 mi) to the W 104 km E of Yamada, JapanInfoDec 7, 2012 05:18 pm (GMT +9)7.331 km174 km (108 mi) to the S 234 km SE of ?funato, Japan 3 reportsInfoOct 2, 2012 07:21 am (GMT +9)6.115 km95 km (59 mi) to the NW 100 km E of Miyako, Japan 1 reportInfoMay 20, 2012 04:20 pm (GMT +9)6.311 km83 km (52 mi) to the W 105 km E of Miyako, JapanInfoMay 20, 2012 04:05 am (GMT +9)5.910 km72 km (45 mi) to the W Off The East Coast of Honshu, JapanInfoJul 10, 2011 09:57 am (GMT +9)7.023 km173 km (108 mi) to the SWNorth Pacific Ocean, 211 km east of Sendai, Miyagi, JapanInfoMay 24, 2011 12:40 pm (GMT +9)5.816 km79 km (49 mi) to the WNorth Pacific Ocean, 179 km east of Morioka, Iwate, JapanInfoApr 14, 2011 04:57 am (GMT +9)6.022 km67 km (42 mi) to the W 120 km E of Yamada, JapanInfoApr 7, 2011 11:32 pm (GMT +9)7.142 km254 km (158 mi) to the SW 30 km southeast of Ishinomaki, Miyagi, JapanInfoMar 22, 2011 06:44 pm (GMT +9)6.413 km72 km (45 mi) to the NWNorth Pacific Ocean, 196 km east of Morioka, Iwate, JapanInfoMar 11, 2011 07:28 pm (GMT +9)5.920 km44 km (27 mi) to the WNorth Pacific Ocean, 212 km east of Morioka, Iwate, JapanInfoMar 11, 2011 03:25 pm (GMT +9)7.719 km160 km (100 mi) to the SNorth Pacific Ocean, 290 km east of Ishinomaki, Miyagi, JapanInfoMar 11, 2011 03:08 pm (GMT +9)6.72.8 km83 km (51 mi) to the SW 134 km ESE of Kamaishi, JapanInfoMar 11, 2011 02:46 pm (GMT +9)9.129 km197 km (122 mi) to the SWNorth Pacific Ocean, 95 km east of Ishinomaki, Miyagi, JapanInfoMar 9, 2011 11:45 am (GMT +9)7.332 km157 km (97 mi) to the SW 120 km SE of ?funato, JapanInfoAug 10, 2010 02:50 pm (GMT +9)5.922 km82 km (51 mi) to the W 103 km E of Yamada, JapanInfoJul 19, 2008 11:39 am (GMT +9)7.022 km267 km (166 mi) to the SWNorth Pacific Ocean, 142 km southeast of Sendai, Miyagi, JapanInfoNov 15, 2005 06:38 am (GMT +9)7.011 km164 km (102 mi) to the SENorth Pacific Ocean, 286 km southeast of Sangan-jima Island, Iwate, JapanInfoAug 16, 2005 11:46 am (GMT +9)7.236 km221 km (137 mi) to the SWNorth Pacific Ocean, 66 km east of Ishinomaki, Miyagi, JapanInfoOct 31, 2003 10:06 am (GMT +9)7.010 km223 km (139 mi) to the SWNorth Pacific Ocean, 162 km east of Sendai, Miyagi, JapanInfoSep 26, 2003 06:08 am (GMT +9)7.433 km262 km (163 mi) to the N 119 km ESE of Shizunai-Furukawach?, JapanInfoSep 26, 2003 04:50 am (GMT +9)8.127 km264 km (164 mi) to the NNorth Pacific Ocean, 135 km south of Kushiro, Hokkaido, JapanInfoMay 26, 2003 06:24 pm (GMT +9)7.068 km229 km (142 mi) to the WMiyagi, 38 km east of Ichinoseki, Iwate, JapanInfoMay 31, 1998 03:18 am (GMT +9)6.233 km74 km (46 mi) to the SW 137 km ESE of Yamada, JapanInfoFeb 23, 1995 02:01 pm (GMT +9)6.29.1 km50 km (31 mi) to the NWNorth Pacific Ocean, 215 km east of Morioka, Iwate, JapanInfoJan 7, 1995 07:37 am (GMT +9)7.027 km187 km (116 mi) to the NW 63 km ESE of Hachinohe, JapanInfoDec 28, 1994 09:19 pm (GMT +9)7.827 km133 km (83 mi) to the NWNorth Pacific Ocean, 214 km northeast of Morioka, Iwate, JapanInfoJul 29, 1992 01:30 pm (GMT +9)6.216 km52 km (32 mi) to the WNorth Pacific Ocean, 132 km east of Sangan-jima Island, Iwate, JapanInfoJul 18, 1992 07:20 pm (GMT +9)6.427 km92 km (57 mi) to the W 92 km E of Yamada, JapanInfoJul 18, 1992 05:36 pm (GMT +9)6.929 km66 km (41 mi) to the WNorth Pacific Ocean, 117 km east of Sangan-jima Island, Iwate, JapanInfoNov 2, 1989 03:25 am (GMT +9)7.429 km123 km (76 mi) to the WNorth Pacific Ocean, 73 km east of Miyako, Iwate, JapanInfoOct 29, 1989 02:25 pm (GMT +9)6.99.6 km67 km (42 mi) to the W 119 km E of Yamada, JapanInfoOct 27, 1989 10:45 am (GMT +9)6.49.1 km54 km (34 mi) to the NW 151 km E of Miyako, JapanInfoOct 27, 1989 02:06 am (GMT +9)6.28 km63 km (39 mi) to the NWNorth Pacific Ocean, 205 km east of Morioka, Iwate, JapanInfoFeb 20, 1979 03:32 pm (GMT +9)6.410 km94 km (58 mi) to the N 164 km ENE of Miyako, JapanInfoJun 12, 1978 05:14 pm (GMT +9)7.744 km228 km (142 mi) to the SWNorth Pacific Ocean, 68 km east of Ishinomaki, Miyagi, JapanInfoSep 24, 1971 10:10 am (GMT +9)6.322 km64 km (40 mi) to the WNorth Pacific Ocean, 119 km east of Sangan-jima Island, Iwate, JapanInfoAug 2, 1971 04:24 pm (GMT +9)7.155 km226 km (141 mi) to the NNorth Pacific Ocean, 168 km south of Obihiro, Hokkaido, JapanInfoJun 12, 1968 10:41 pm (GMT +9)7.032 km89 km (55 mi) to the WNorth Pacific Ocean, 98 km east of Miyako, Iwate, JapanInfoMay 16, 1968 07:39 pm (GMT +9)7.925 km251 km (156 mi) to the NWNorth Pacific Ocean, Hokkaido, 196 km northeast of Aomori, Aomori, JapanInfoMay 16, 1968 09:49 am (GMT +9)8.230 km167 km (104 mi) to the N 168 km ENE of Hachinohe, JapanInfoMar 23, 1960 09:23 am (GMT +9)7.015 km71 km (44 mi) to the WNorth Pacific Ocean, 186 km east of Morioka, Iwate, JapanInfoMar 21, 1960 02:07 am (GMT +9)7.915 km88 km (55 mi) to the NW 113 km ENE of Miyako, JapanInfoNov 6, 1938 08:53 am (Universal Time)7.730 km278 km (173 mi) to the SWNorth Pacific Ocean, Fukushima, 160 km southeast of Sendai, Miyagi, JapanInfoOct 18, 1935 12:11 am (Universal Time)7.115 km87 km (54 mi) to the N 192 km ENE of Miyako, JapanInfoMar 2, 1933 05:31 pm (Universal Time)8.415 km50 km (31 mi) to the SENorth Pacific Ocean, 225 km east of Sangan-jima Island, Iwate, JapanInfoMar 9, 1931 03:49 am (Universal Time)7.935 km191 km (119 mi) to the NWNorth Pacific Ocean, Iwate, 79 km east of Hachinohe, Aomori, JapanInfoMay 3, 1919 12:52 am (Universal Time)7.715 km187 km (116 mi) to the NE 277 km SSE of Kushiro, JapanInfoMar 15, 1917 12:14 am (Universal Time)6.915 km37 km (23 mi) to the WNorth Pacific Ocean, 218 km east of Morioka, Iwate, JapanInfoMay 2, 1902 11:31 am (Universal Time)7.035 km51 km (32 mi) to the SNorth Pacific Ocean, 257 km east of Morioka, Iwate, JapanInfoAug 10, 1901 04:33 am (GMT +10)7.50 km62 km (38 mi) to the NNorth Pacific Ocean, 246 km east of Morioka, Iwate, JapanInfoAug 9, 1901 06:23 pm (GMT +9)7.90 km180 km (112 mi) to the NWNorth Pacific Ocean, Iwate, 85 km east of Hachinohe, Aomori, 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]