Moderate magnitude 4.3 earthquake at 35 km depth20 Jan 00:39 UTC: First to report: USGS after 7 minutes.20 Jan 01:00: Magnitude recalculated from 5.0 to 4.3. Hypocenter depth recalculated from 7.10 to 35.00 km (from 4.4 to 22 mi). Epicenter location corrected by 6.1 km (3.8 mi) towards NNE.I didn't feel itI felt this quakeEarthquake detailsDate & timeJan 20, 2026 00:32:07 UTC - Local time at epicenterTuesday, Jan 20, 2026, at 12:32 am (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.3Depth35 kmEpicenter latitude / longitude51.2165°N / 178.3652°WAlaska, United StatesSeismic antipode51.2165°S / 1.6348°EQuality52 seismic stationsShaking intensityIII Weak shaking near epicenterFelt0 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoGareloi (70 km / 43 mi)Weather at epicenter at time of quakeSnow 1.8°C (35 F), humidity: 100%, wind: 11 m/s (22 kts) from NEstimated 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 energy28 minutes agoJan 20, 2026 00:32 GMT / Jan 20, 2026 12:32 am (Universal Time)Lat / Lng: 51.2165 / -178.3652: 140 km WSW of Adak, AlaskaSource: USGSOther sources: IRIS: 4.3 / 35 kmDetail info | You felt it? - Report it!';storedMarkers.push(['quake-22632787',51.21650,-178.36520,'28 minutes ago: Mag. 4.3, 140 km WSW of Adak, Alaska',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]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 Adak, a town with 332 inhabitants in the United States, in 140 km (87 mi) distance northeast of the epicenter. People likely experienced very weak shaking there.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry140 km (87 mi)NE of epicenterAdak(pop: 332)II: Very weakAleutians West Census Area, AlaskaUnited States307 km (191 mi)NE of epicenterAtka(pop: 64)I: Not feltAleutians 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!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 GMT2026-01-20EpicenterAgency4.335 km22 mi00:32:07.16140 km WSW of Adak, AlaskaUSGS (United States Geological Survey)4.335 km22 mi00:32:07andreanof islands, aleutian is.0 km (0 mi) epicenter difference with USGSIRIS (Incorporated Research Institutions for Seismology)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)Jan 20, 2026 12:32 am (Universal Time)28 minutes ago4.335 km0 km - This quakeBering Sea, 32 mi E of Amatignak Island, Aleutians West Census Area, Alaska, United StatesMain 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 2,600 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: 1.03 quakes per yearMag. 5 or higher: 7.2 quakes per yearMag. 4 or higher: 34.2 quakes per year (or 2.9 quakes per month)Mag. 3 or higher: 162 quakes per year (or 13.5 quakes per month)Mag. 2 or higher: 722 quakes per year (or 60 quakes per month)Mag. 1 or higher: 2,000 quakes per year (or 5.4 quakes per day)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 8 weeks after a magnitude 5.5 earthquake had hit on Saturday, Nov 22, 2025, at 10:21 pm (GMT -10 local time) in 93 km (58 mi) distance to the east:Mag. 5.5 earthquake Bering Sea - Alaska, United States - Nov 22, 2025 - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.5. It had occurred 7 years earlier, on Wednesday, Aug 15, 2018, at 09:56 pm (GMT +0 local time) in Alaska, United States:Mag. 6.5 earthquake Bering Sea - Alaska, United States - Aug 15, 2018 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.6. It had occurred 69 years ago earlier, on Saturday, Mar 9, 1957, at 04:22 am (GMT -10 local time) in Alaska, United States:Mag. 8.6 earthquake Bering Sea - Alaska, United States - Mar 9, 1957 - 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 TimeMagDepthDistanceLocationDetailsMapJan 7, 09:50 am (GMT -10)4.030 km92 km (57 mi) to the EBering Sea, 49 mi south of Adak, Aleutians West Census Area, Alaska, United StatesInfoDec 3, 2025 01:39 am (Adak)4.235 km52 km (32 mi) to the W 115 mi west of Adak, Aleutians West Census Area, Alaska, United StatesInfoNov 27, 2025 06:32 pm (GMT -10)4.254 km21 km (13 mi) to the NWBering Sea, 26 mi east of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoNov 22, 2025 10:21 pm (GMT -10)5.555 km93 km (58 mi) to the EBering Sea, 37 mi southwest of Adak, Aleutians West Census Area, Alaska, United StatesInfoNov 21, 2025 08:49 am (GMT -10)4.344 km12 km (7.2 mi) to the EBering Sea, 39 mi east of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoSep 20, 2025 09:30 pm (GMT -12)5.530 km24 km (15 mi) to the EBering Sea, 41 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoAug 5, 2025 02:04 am (Adak)5.186 km93 km (58 mi) to the NEBering Sea, 22 mi east of Tanaga Island, Aleutians West Census Area, Alaska, United States 1 reportInfoApr 15, 2025 06:49 pm (GMT -9)5.240 km7.3 km (4.5 mi) to the SBering Sea, 32 mi east of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoDec 10, 2024 08:04 am (GMT -10)5.920 km79 km (49 mi) to the ENorth Pacific Ocean, 60 mi southwest of Adak, Aleutians West Census Area, Alaska, United StatesInfoDec 8, 2024 09:57 am (GMT -10)6.318 km76 km (47 mi) to the ENorth Pacific Ocean, 67 mi southwest of Adak, Aleutians West Census Area, Alaska, United States 1 reportInfoAug 22, 2018 05:35 pm (GMT -10)6.320 km45 km (28 mi) to the EBering Sea, 31 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United States 1 reportInfoAug 15, 2018 09:56 pm (GMT +0)6.534 km33 km (20 mi) to the NEBering Sea, 25 mi east of Tag s Island, Aleutians West Census Area, Alaska, United States 1 reportInfoAug 30, 2013 06:25 am (GMT -10)7.029 km221 km (137 mi) to the EBering Sea, 32 mi south of Ikiginak Island, Aleutians West Census Area, Alaska, United StatesInfoSep 26, 2012 02:39 pm (Adak)6.416 km42 km (26 mi) to the NBering Sea, 12 mi east of Tag s Island, Aleutians West Census Area, Alaska, United StatesInfoAug 4, 2010 12:58 pm (GMT +0)6.427 km30 km (19 mi) to the NWBering Sea, 23 mi northeast of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMay 1, 2008 04:33 pm (Adak)6.614 km92 km (57 mi) to the NEBering Sea, 18 mi east of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoApr 15, 2008 07:54 pm (GMT -10)6.613 km92 km (57 mi) to the NWBering Sea, 43 mi north of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoDec 20, 2007 10:24 pm (Adak)6.325 km46 km (28 mi) to the W 107 mi west of Adak, Aleutians West Census Area, Alaska, United StatesInfoDec 18, 2007 11:30 pm (GMT -10)7.234 km81 km (50 mi) to the WBering Sea, 19 mi west of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoJul 8, 2006 08:40 pm (GMT +0)6.622 km66 km (41 mi) to the WBering Sea, 9.4 mi west of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMar 20, 1999 01:47 am (Adak)6.933 km64 km (39 mi) to the NEBering Sea, 18 mi southeast of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoOct 15, 1997 03:11 am (GMT +0)6.422 km41 km (26 mi) to the NEBering Sea, 25 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoJun 10, 1996 06:24 am (Adak)7.326 km109 km (68 mi) to the EBering Sea, 29 mi south of Adak, Aleutians West Census Area, Alaska, United StatesInfoJun 9, 1996 07:03 pm (Adak)7.933 km64 km (40 mi) to the NEBering Sea, 20 mi southeast of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoJun 8, 1996 02:19 pm (Adak)6.533 km35 km (22 mi) to the NEBering Sea, 23 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoMay 15, 1993 12:52 pm (Adak)6.932 km27 km (17 mi) to the NWBering Sea, 21 mi northeast of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoSep 29, 1992 07:34 pm (GMT -10)6.633 km24 km (15 mi) to the EBering Sea, 36 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoOct 7, 1989 06:48 am (Adak)6.820 km47 km (29 mi) to the WBering Sea, 5 mi northeast of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMay 7, 1986 12:47 pm (GMT -10)8.033 km251 km (156 mi) to the EBering Sea, 53 mi southwest of Atka, Aleutians West Census Area, Alaska, United StatesInfoMay 23, 1978 09:16 pm (Adak)6.725 km59 km (37 mi) to the WBering Sea, 5 mi southwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 21, 1975 10:36 pm (GMT -10)6.548 km75 km (47 mi) to the WBering Sea, 16 mi northwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMay 1, 1971 08:08 pm (GMT -10)6.924 km76 km (47 mi) to the EBering Sea, 38 mi southeast of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 28, 1970 12:52 am (GMT -10)7.1164 km276 km (171 mi) to the NEBering Sea, 36 mi northwest of Atka, Aleutians West Census Area, Alaska, United StatesInfoSep 11, 1969 11:57 pm (Adak)6.634 km60 km (37 mi) to the W 120 mi west of Adak, Aleutians West Census Area, Alaska, United StatesInfoMar 15, 1957 05:34 pm (Adak)7.125 km42 km (26 mi) to the NWBering Sea, 15 mi northeast of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMar 14, 1957 04:47 am (GMT -10)7.125 km114 km (71 mi) to the EBering Sea, 41 mi south of Adak Island, Aleutians West Census Area, Alaska, United StatesInfoMar 12, 1957 01:45 am (GMT -10)7.120 km83 km (52 mi) to the EBering Sea, 38 mi southwest of Adak, Aleutians West Census Area, Alaska, United StatesInfoMar 11, 1957 02:55 pm (GMT +0)6.925 km21 km (13 mi) to the NWBering Sea, 23 mi east of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMar 9, 1957 04:22 am (GMT -10)8.625 km193 km (120 mi) to the EBering Sea, 32 mi south of Chugul Island, Aleutians West Census Area, Alaska, United StatesInfoApr 17, 1954 08:10 pm (GMT +0)6.625 km77 km (48 mi) to the NWBering Sea, 21 mi northwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoSep 3, 1937 08:48 am (GMT -10)7.280 km155 km (96 mi) to the NBering Sea, 57 mi northwest of Adak, Aleutians West Census Area, Alaska, United StatesInfoJul 7, 1929 09:23 pm (Universal Time)7.335 km52 km (32 mi) to the NEBering Sea, 23 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoJul 5, 1929 02:19 pm (Universal Time)7.035 km31 km (19 mi) to the NEBering Sea, 25 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoOct 13, 1926 02:17 pm (Universal Time)6.650 km91 km (56 mi) to the NWBering Sea, 28 mi northwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoMar 31, 1913 03:41 am (Universal Time)6.935 km77 km (48 mi) to the WBering Sea, 16 mi northwest of Amatignak Island, Aleutians West Census Area, Alaska, United StatesInfoJan 4, 1912 03:46 pm (Universal Time)6.735 km31 km (19 mi) to the EBering Sea, 36 mi south of Tanaga Island, Aleutians West Census Area, Alaska, United StatesInfoFeb 14, 1905 08:46 am (Universal Time)7.535 km137 km (85 mi) to the NE 3.1 mi west of Adak, 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 +][smaller][bigger]