Very strong magnitude 6.4 earthquake at unknown depth4 Mar 17:59 UTC: First to report: USGS after 5 minutes.4 Mar 18:07: Magnitude recalculated from 6.5 to 6.4. Hypocenter depth recalculated from 42.00 to 40.00 km (from 26 to 25 mi). Epicenter location corrected by 34 km (21 mi) towards SSW.4 Mar 18:09: Hypocenter depth recalculated from 40.00 to 10.00 km (from 25 to 6.2 mi). Epicenter location corrected by 69 km (43 mi) towards NNE.I didn't feel itI felt this quakeEarthquake detailsDate & timeMar 4, 2026 17:54:36 UTC - Local time at epicenterWednesday, Mar 4, 2026, at 07:54 am (GMT -10)Statusconfirmed (manually revised)Magnitude6.4Depth10 kmEpicenter latitude / longitude52.2664°N / 176.3634°EAleutians West, Alaska, United StatesSeismic antipode52.2664°S / 3.637°WQuality115 seismic stationsShaking intensityVII Very strong shaking near epicenterFelt0 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoBuldir (32 km / 20 mi)Weather at epicenter at time of quakeOvercast Clouds 0.2°C (32 F), humidity: 59%, wind: 10 m/s (19 kts) from NEstimated seismic energy released2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | equivalent to ONE quake of magnitude 6.4 | about seismic energy17 minutes agoMar 4, 2026 17:54 GMT / Mar 4, 2026 07:54 am (GMT -10)Lat / Lng: 52.2664 / 176.3634: 224 km ESE of Attu Station, AlaskaSource: USGSOther sources: IRIS: 6.4 / 10 km, RENASS: 6.0 / 10 km, 1 more...Detail info | You felt it? - Report it!';storedMarkers.push(['quake-22773735',52.26640,176.36340,'17 minutes ago: Mag. 6.4, 224 km ESE of Attu Station, Alaska',html,'quakes-8-24.png',35,35,17,17,127]); 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]Ground shaking from this quakeMap of estimated ground shaking (source:USGS)Ground accelleration map for this quakeMap of estimated ground accelleration (source:USGS)Most recent quakes Top 20 past 24 hrs Quakes in the US AlaskaNearby placesThe closest larger town where the quake might have been felt is Attu Station, a town with 21 inhabitants in the United States, in 224 km (139 mi) distance west of the epicenter. People likely experienced light shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry224 km (139 mi)W of epicenterAttu Station(pop: 21)IV: LightAleutians West Census Area, AlaskaUnited 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 appI didn't feel itI felt this quakeIf you were near the epicenter and felt it, please share your experience and submit a short "I felt it" report! Other users would love to hear about it!If you did NOT feel the quake although you were in the area, please report it as well! Your contribution is valuable to earthquake science and seismic hazard analysis.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 GMT2026-03-4EpicenterAgency6.410 km6.2 mi(*)17:54:36.733224 km ESE of Attu Station, AlaskaUSGS (United States Geological Survey)6.410 km6.2 mi(*)17:54:36rat islands, aleutian islands0 km (0 mi) epicenter difference with USGSIRIS (Incorporated Research Institutions for Seismology)6.0210 km6.2 mi(*)17:54:39.87near Petropavlovsk Kamchatskiy24 km (15 mi) epicenter difference with USGSRENASS (Réseau National de Surveillance Sismique (RéNaSS))6.210 km6.2 mi(*)17:54:37.65Rat Islands, Aleutian Islands16 km (9.7 mi) epicenter difference with USGSGFZ (German Research Centre for Geosciences)6.410 km6.2 mi(*)17:54:36.733RAT ISLANDS, ALEUTIAN ISLANDS0 km (0 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)6.510 km6.2 mi(*)17:54:38.36±0.21sRat Islands, Aleutian Islands4.2 km (2.6 mi) epicenter difference with USGSEpicenter uncertainty: ± 7.9 kmGeoAu (Geoscience Australia )Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy.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 251 km2 (97 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 27 km (17 mi).[More info]Recorded aftershocks, latest first (0 quake)Mar 4, 2026 07:54 am (GMT -10)17 minutes ago6.410 km0 km - This quakeBering Sea, 20 mi E of Buldir Island, Aleutians West Census Area, Alaska, United StatesMain Shock (this quake)MoreMap of aftershocksPrevious quakes in the same area of this earthquakeStrongest in 8 yearsThe earthquake was the strongest to hit this part of the United States in over 8 years. Earlier, the last quake of equal or greater strength near the present epicenter had been a magnitude 6.5 earthquake on Sunday, Oct 8, 2017, at 12:34 pm (GMT -10 local time) in 31 km (19 mi) distance to the northeast:Mag. 6.5 earthquake Bering Sea - Alaska, United States - Oct 8, 2017 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.7. It had occurred 61 years ago earlier, on Wednesday, Feb 3, 1965, at 07:01 pm (GMT -10 local time) in Alaska, United States:Mag. 8.7 earthquake Bering Sea - Alaska, United States - Feb 3, 1965 - 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 4, 03:26 am (GMT -10)5.410 km4.6 km (2.9 mi) to the SWBering Sea, 18 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United States I FELT ITInfoMar 4, 01:18 am (GMT -10)4.310 km21 km (13 mi) to the SBering Sea, 27 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United States I FELT ITInfoMar 3, 07:06 pm (GMT -10)4.110 km39 km (24 mi) to the SBering Sea, 31 mi south of Buldir Island, Aleutians West Census Area, Alaska, United States I FELT ITInfoMar 3, 04:54 pm (GMT -10)4.410 km27 km (16 mi) to the SBering Sea, 25 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United States I FELT ITInfoMar 3, 11:46 am (GMT -10)4.218 km42 km (26 mi) to the SBering Sea, 33 mi south of Buldir Island, Aleutians West Census Area, Alaska, United States I FELT ITInfoJan 14, 10:52 pm (GMT -10)5.941 km63 km (39 mi) to the SEBering Sea, 55 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United States 1 reportInfoOct 8, 2017 12:34 pm (GMT -10)6.5119 km31 km (19 mi) to the NEBering Sea, 42 mi northwest of Kiska Island, Aleutians West Census Area, Alaska, United StatesInfoApr 11, 2016 10:10 am (GMT -10)5.637 km57 km (35 mi) to the SEBering Sea, 32 mi west of Kiska Island, Aleutians West Census Area, Alaska, United StatesInfoAug 20, 2014 10:12 am (GMT -10)5.55.2 km72 km (45 mi) to the WBering Sea, 37 mi east of Ingenstrem Rocks Island, Aleutians West Census Area, Alaska, United StatesInfoJun 23, 2014 10:12 pm (GMT -10)5.710 km15 km (9.6 mi) to the EBering Sea, 43 mi northwest of Kiska Island, Aleutians West Census Area, Alaska, United StatesInfoJun 23, 2014 05:15 pm (GMT -10)6.34 km24 km (15 mi) to the EBering Sea, 36 mi northwest of Kiska Island, Aleutians West Census Area, Alaska, United States 1 reportInfoJun 23, 2014 08:53 pm (GMT +0)7.9109 km169 km (105 mi) to the EBering Sea, 244 mi east of Attu Station, Aleutians West Census Area, Alaska, United States 1 reportInfoDec 30, 2010 12:02 pm (GMT +0)5.557 km100 km (62 mi) to the SEBering Sea, 80 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJul 1, 2006 05:53 pm (GMT -10)5.88.6 km73 km (45 mi) to the SEBering Sea, 62 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJun 27, 2006 02:39 am (GMT +0)6.217 km15 km (9 mi) to the WBering Sea, 13 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJun 13, 2006 07:46 pm (Adak)6.029 km63 km (39 mi) to the SEBering Sea, 58 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJun 14, 2006 04:18 am (GMT +0)6.514 km75 km (47 mi) to the SEBering Sea, 65 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoNov 16, 2003 08:43 pm (GMT -10)7.833 km201 km (125 mi) to the SEBering Sea, 97 mi west of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoOct 23, 2003 12:54 am (GMT -10)5.633 km99 km (61 mi) to the SBering Sea, 74 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJun 23, 2003 02:12 am (GMT -10)6.920 km96 km (60 mi) to the SBering Sea, 73 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJun 15, 2003 09:24 am (GMT -10)6.520 km88 km (55 mi) to the SEBering Sea, 70 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMar 17, 2003 06:36 am (GMT -10)7.133 km157 km (97 mi) to the SEBering Sea, 115 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoAug 20, 1998 05:00 am (GMT -10)6.333 km105 km (65 mi) to the SWBering Sea, 59 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMay 21, 1992 11:16 pm (Adak)5.733 km50 km (31 mi) to the WBering Sea, 11 mi west of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMar 8, 1988 06:27 am (GMT -10)5.833 km109 km (67 mi) to the SBering Sea, 81 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 15, 1988 06:22 pm (GMT -10)6.033 km120 km (74 mi) to the SWBering Sea, 67 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoOct 30, 1985 09:05 am (GMT -10)5.833 km77 km (48 mi) to the SWBering Sea, 42 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJan 24, 1983 03:02 am (GMT -10)5.733 km99 km (61 mi) to the SBering Sea, 69 mi south of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJul 30, 1982 08:29 pm (GMT -10)6.438 km59 km (37 mi) to the SBering Sea, 43 mi south of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJan 29, 1981 10:52 pm (GMT -10)7.033 km58 km (36 mi) to the SBering Sea, 45 mi south of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoOct 17, 1979 06:35 pm (Adak)6.062 km69 km (43 mi) to the SEBering Sea, 62 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 1, 1975 10:43 pm (GMT -10)7.610 km215 km (134 mi) to the NWBering Sea, 23 mi northeast of Attu Station, Aleutians West Census Area, Alaska, United StatesInfoJun 11, 1971 03:58 am (GMT -10)6.725 km82 km (51 mi) to the SWBering Sea, 53 mi south of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMar 29, 1965 04:27 pm (GMT -10)7.620 km247 km (154 mi) to the SENorth Pacific Ocean, 145 mi southwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 5, 1965 06:02 pm (GMT -10)6.228 km59 km (37 mi) to the WBering Sea, 21 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 3, 1965 11:40 pm (Adak)7.330 km241 km (150 mi) to the EBering Sea, 57 mi west of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 3, 1965 07:01 pm (GMT -10)8.730 km197 km (123 mi) to the SEBering Sea, 94 mi west of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoJan 12, 1958 02:02 pm (GMT -10)6.5121 km27 km (17 mi) to the NEBering Sea, 34 mi east of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMar 28, 1954 10:36 am (GMT -10)6.335 km111 km (69 mi) to the SWNorth Pacific Ocean, 70 mi south of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoSep 16, 1950 09:58 pm (GMT +0)6.6100 km53 km (33 mi) to the SEBering Sea, 52 mi southeast of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoJul 13, 1940 08:52 pm (Adak)7.465 km129 km (80 mi) to the EBering Sea, 100 mi east of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoApr 16, 1940 06:43 am (Universal Time)7.030 km201 km (125 mi) to the WBering Sea, 15 mi east of Attu Station, Aleutians West Census Area, Alaska, United StatesInfoSep 8, 1939 12:04 pm (Universal Time)7.215 km171 km (106 mi) to the SWNorth Pacific Ocean, 103 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoApr 10, 1909 07:36 pm (Universal Time)7.00 km98 km (61 mi) to the WNorth Pacific Ocean, 66 mi southeast of Agattu Island, Aleutians West Census Area, Alaska, United StatesInfoSep 2, 1907 04:01 pm (Universal Time)7.315 km258 km (160 mi) to the W 151 km S of Attu Station, AlaskaInfoAug 17, 1906 12:11 am (Universal Time)8.3110 km132 km (82 mi) to the EBering Sea, 102 mi east of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 5, 1903 06:26 pm (Universal Time)6.80 km98 km (61 mi) to the WBering Sea, 46 mi southwest of Buldir Island, Aleutians West Census Area, Alaska, United StatesInfoMap 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 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