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The depth of the quake could not be determined, but is assumed to be shallow.The quake was felt widely in the area. The shallow depth of the quake caused it to be felt more strongly near the epicenter than a deeper quake of similar magnitude would.Quake Data | Interactive map | Seismograms | User reports | Aftershocks | Earlier quakes here | Quakes in the US | AlaskaHint: Click on the image to see different maps of this quake!Strong magnitude 5.6 earthquake at unknown depth8 Aug 04:51 UTC: First to report: USGS after 1 minute.8 Aug 04:55: Magnitude recalculated from 5.5 to 5.6. Hypocenter depth recalculated from 0.20 to 5.00 km (from 0.1 to 3.1 mi). Epicenter location corrected by 5.6 km (3.5 mi) towards E.8 Aug 05:02: Hypocenter depth recalculated from 5.00 to 10.00 km (from 3.1 to 6.2 mi). Epicenter location corrected by 2.4 km (1.5 mi) towards W.Update Sat, 8 Aug 2026, 04:54Significant 5.5 quake hits near Skwentna, Matanuska-Susitna, Alaska, USAThe United States was shaken near Skwentna, Matanuska-Susitna, Alaska, by an earthquake of magnitude 5.5 only 4 minutes ago, the United States Geological Survey reported.The quake hit at a very shallow depth of 0.1 miles beneath the epicenter near Skwentna, Matanuska-Susitna, Alaska, USA, in the evening on Friday, August 7th, 2026, at 8:50 pm local time. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.Weak shaking might have been felt in Skwentna (pop. 37) located 37 miles from the epicenter.VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.If you were or still are in this area during the quake help others with your feedback and report it here.Download the Volcanoes & Earthquakes app and get one of the fastest seismic alerts online: Android | iOSI didn't feel itI felt this quakeEarthquake detailsDate & timeAug 8, 2026 04:50:34 UTC - Local time at epicenterSaturday, Aug 8, 2026, at 04:50 am (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude5.60Depth10 kmEpicenter latitude / longitude62.269°N / 152.314°WMatanuska-Susitna Borough, Alaska, United StatesSeismic antipode62.269°S / 27.686°EQuality228 seismic stationsShaking intensityVI Strong shaking near epicenterFelt40 reportsPrimary data sourceUSGS (United States Geological Survey)Nearest volcanoHayes (75 km / 47 mi)Weather at epicenter at time of quakeOvercast Clouds 10.7°C (51 F), humidity: 86%, wind: 0 m/s (0 kts) from ENEEstimated seismic energy released1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 tons of TNT or 0.2 atomic bombs!) | equivalent to ONE quake of magnitude 5.6 | about seismic energy13 minutes ago reported feltAug 8, 2026 04:50 GMT / Aug 8, 2026 04:50 am (Universal Time)Lat / Lng: 62.269 / -152.314: 57 km WNW of Skwentna, AlaskaSource: USGSOther sources: GFZ: 5.3 / 10 km, EMSC: 5.2 / 10 km, 1 more...Detail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23254036',62.26900,-152.31400,'13 minutes ago: Mag. 5.6, 57 km WNW of Skwentna, Alaska',html,'quakes-7-24.png',30,30,15,15,126]); 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 Skwentna, a town with 37 inhabitants in the United States, in 57 km (35 mi) distance southeast 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(*)RegionCountry57 km (35 mi)SE of epicenterSkwentna(pop: 37)IV: LightMatanuska-Susitna Borough, AlaskaUnited States114 km (71 mi)E of epicenterTalkeetna(pop: 876)IV: LightMatanuska-Susitna Borough, AlaskaUnited States128 km (80 mi)E of epicenterSusitna North(pop: 1,260)IV: LightMatanuska-Susitna Borough, AlaskaUnited States132 km (82 mi)SE of epicenterWillow(pop: 2,100)IV: LightMatanuska-Susitna Borough, AlaskaUnited States145 km (90 mi)N of epicenterDenali National Park(pop: 217)IV: LightDenali Borough, AlaskaUnited States147 km (92 mi)SE of epicenterTyonek(pop: 171)IV: LightKenai Peninsula Borough, AlaskaUnited States149 km (92 mi)SE of epicenterHouston(pop: 2,210)IV: LightMatanuska-Susitna Borough, AlaskaUnited States149 km (93 mi)SE of epicenterBig Lake(pop: 3,350)IV: LightMatanuska-Susitna Borough, AlaskaUnited States159 km (99 mi)SE of epicenterPoint MacKenzie(pop: 529)III: WeakMatanuska-Susitna Borough, AlaskaUnited States165 km (103 mi)SE of epicenterKnik-Fairview(pop: 14,900)III: WeakMatanuska-Susitna Borough, AlaskaUnited States169 km (105 mi)SE of epicenterWasilla(pop: 9,280)III: WeakMatanuska-Susitna Borough, AlaskaUnited States171 km (106 mi)E of epicenterFishhook(pop: 4,680)III: WeakMatanuska-Susitna Borough, AlaskaUnited States173 km (107 mi)SE of epicenterAnchorage(pop: 289,600)III: WeakAlaskaUnited States179 km (111 mi)SE of epicenterEagle River(pop: 24,800)III: WeakAnchorage Municipality, AlaskaUnited States179 km (111 mi)SE of epicenterEagle River(pop: 24,800)III: WeakAnchorage Municipality, AlaskaUnited States183 km (114 mi)SE of epicenterPalmer(pop: 6,790)III: WeakMatanuska-Susitna Borough, AlaskaUnited States184 km (114 mi)S of epicenterNikiski(pop: 4,490)III: WeakKenai Peninsula Borough, AlaskaUnited States184 km (115 mi)NW of epicenterMcGrath(pop: 344)III: WeakYukon-Koyukuk Census Area, AlaskaUnited States189 km (118 mi)E of epicenterSutton-Alpine(pop: 1,450)III: WeakMatanuska-Susitna Borough, AlaskaUnited States199 km (124 mi)S of epicenterKenai(pop: 7,660)III: WeakAlaskaUnited States200 km (124 mi)SE of epicenterKnik River(pop: 744)III: WeakMatanuska-Susitna Borough, AlaskaUnited States209 km (130 mi)S of epicenterSoldotna(pop: 4,540)III: WeakKenai Peninsula Borough, AlaskaUnited States210 km (130 mi)SE of epicenterSterling(pop: 5,620)III: WeakKenai Peninsula Borough, AlaskaUnited States213 km (132 mi)S of epicenterKalifornsky(pop: 7,850)III: WeakKenai Peninsula Borough, AlaskaUnited States222 km (138 mi)SE of epicenterGirdwood(pop: 2,250)III: WeakAnchorage Municipality, AlaskaUnited States244 km (152 mi)NE of epicenterHealy(pop: 1,020)III: WeakDenali Borough, AlaskaUnited States249 km (155 mi)S of epicenterNinilchik(pop: 883)III: WeakKenai Peninsula Borough, AlaskaUnited States260 km (162 mi)S of epicenterHappy Valley(pop: 593)III: WeakKenai Peninsula Borough, AlaskaUnited States278 km (173 mi)S of epicenterFox River(pop: 685)III: WeakKenai Peninsula Borough, AlaskaUnited States278 km (173 mi)S of epicenterAnchor Point(pop: 1,930)III: WeakKenai Peninsula Borough, AlaskaUnited States286 km (178 mi)SE of epicenterSeward(pop: 2,790)III: WeakKenai Peninsula Borough, AlaskaUnited States287 km (178 mi)S of epicenterFritz Creek(pop: 1,930)III: WeakKenai Peninsula Borough, AlaskaUnited States295 km (183 mi)S of epicenterHomer(pop: 5,520)III: WeakKenai Peninsula Borough, AlaskaUnited States357 km (222 mi)NE of epicenterEster(pop: 2,420)III: WeakFairbanks North Star Borough, AlaskaUnited States364 km (226 mi)NE of epicenterCollege(pop: 13,000)III: WeakFairbanks North Star Borough, AlaskaUnited States365 km (227 mi)NE of epicenterFairbanks(pop: 32,300)III: WeakAlaskaUnited States368 km (229 mi)NE of epicenterBadger(pop: 19,500)III: WeakFairbanks North Star Borough, AlaskaUnited States368 km (229 mi)NE of epicenterSalcha(pop: 1,100)III: WeakFairbanks North Star Borough, AlaskaUnited States370 km (230 mi)NE of epicenterNorth Pole(pop: 2,190)III: WeakFairbanks North Star Borough, AlaskaUnited States373 km (232 mi)NE of epicenterEielson Air Force Base(pop: 2,650)III: WeakFairbanks North Star Borough, AlaskaUnited StatesNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (40)So far, we have received 40 reports for this quake from the United States. The quake was reported to have been felt in up to approx. 200–350 km (124–217 mi) distance.The majority of reports came from Anchorage (13 reports), a city with more than 290,000 inhabitants in Alaska in 173 km (107 mi) distance southeast of the epicenter, United States, Wasilla (4 reports), a town with 9,300 inhabitants in 169 km (105 mi) distance southeast of the epicenter, and Palmer (2 reports) (183 km or 114 mi to the southeast). See the list of places where most people reported this quake further below.This section is being updated as new data comes in.User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.Contribute:Leave a comment if you find a particular report interesting or want to add to it.Flag as inappropriate.Mark as helpful or interesting.Send your own user report!TranslateWillow alaska (183.1 km ESE of epicenter) [Map] / Moderate shaking (MMI V) : The whole house moved | One user found this interesting. Trapper creek Alaska (106.2 km E of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s : My whole house was going up and down and side to side some. My light fixtures and indoor swing were swinging and moving quite a bit. No pictures or things fell out of place from the walls | One user found this interesting. 177.7 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)161.9 km ESE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)Cooper Landing, AK (236.8 km SE of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 10-15 s179.8 km SE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)Wasilla, Matanuska-Susitna, Alaska (167.3 km ESE of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)College, Fairbanks North Star, Alaska (366.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)Anchorage (176.4 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 30-60 sAnchorage, Alaska (179.3 km SE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)Kenai, Alaska (197.2 km SSE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)Anchorage AK (172.5 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 20-30 sSouth anchorage (181.4 km SE of epicenter) [Map] / Very weak shaking (MMI II) : Long slow movement while laying in bed (reported through our iOS app) Wasilla (183.3 km ESE of epicenter) [Map] / Light shaking (MMI IV) / 30-60 s (reported through our app)Meadow Lakes, Matanuska-Susitna, Alaska (163.5 km ESE of epicenter) [Map] / Weak shaking (MMI III) (reported through our iOS app)Fairbanks, AK (374 km NE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s (reported through our iOS app)Anchorage, Alaska (178 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s (reported through our iOS app)177.6 km SE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)7265 n Glenn Hwy Palmer AK / Moderate shaking (MMI V)Rabbit Creek Rd, Anchorage (172.8 km SE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s : House shook for several seconds Anchorage / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s : No sharp jolts. Gentle rolling. 212.8 km SSE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)Willow, AK / Weak shaking (MMI III) / rattling, vibrating / 2-5 s134.7 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)Anchorage Alaska (176.7 km SE of epicenter) [Map] / Very weak shaking (MMI II) / 5-10 s : Some creaking and more movement Wasilla,AK 99623 (172.8 km SE of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 sSoldotna, Alaska (172.7 km SE of epicenter) [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 10-15 s : I could feel the floor lightly rolling up and down and the rocking chair I was sitting in was lightly rolling with the floor. Hanging lights were slowly swaying. Kenai AK / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 sNaptowne/Sterling Alaska (172.6 km SE of epicenter) [Map] / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s : Chair I am sitting in moved sideways. Very short. Very, very mild sensation. Hanging lamp swung minimally. 164.9 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)Talkeetna, Ak (114.4 km E of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 sShow moreShow moreList of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsAnchorage, Alaska, United States(Pop.: 289,600)173 km (107 mi)SE of epicenterIII: Weak shaking13Wasilla, Alaska, United States(Pop.: 9,284)169 km (105 mi)SE of epicenterIII: Weak shaking4Palmer, Alaska, United States(Pop.: 6,788)183 km (114 mi)SE of epicenterIV: Light shaking2Redmond, Washington, United States(Pop.: 60,598)2,480 km (1,541 mi)SE of epicenterIV: Light shaking2Farmers Loop, Alaska, United States(Pop.: 4,853)372 km (231 mi)NE of epicenterIII: Weak shaking1Meadow Lakes, Alaska, United States(Pop.: 7,570)159 km (99 mi)SE of epicenterIII: Weak shaking1Kenai, Alaska, United States(Pop.: 7,661)199 km (124 mi)S of epicenterIV: Light shaking1College, Alaska, United States(Pop.: 12,964)364 km (226 mi)NE of epicenterII: Very weak shaking1Knik-Fairview, Alaska, United States(Pop.: 14,923)165 km (103 mi)SE of epicenterV: Moderate shaking1Portland, Oregon, United States(Pop.: 652,503)2,648 km (1,645 mi)SE of epicenterIII: Weak shaking1Note: Only reports with latitude/longitude coordinate positions given (40 in total) could be used for statistics.What is Intensity and the Mercalli Intensity Scale?The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!Number of reports by intensityShaking intensityNumber of reportsMin-Max distance from epicenter (*)Average distance (*)II: Very weak shaking11167–366 km (104–228 mi)196 km (122 mi)III: Weak shaking8163–374 km (102–232 mi)207 km (128 mi)IV: Light shaking14106–197 km (66–122 mi)162 km (100 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (40 in total) could be used for geographic statistics.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 GMT2026-08-8EpicenterAgency5.610 km6.2 mi(*)04:50:34.98557 km WNW of Skwentna, AlaskaUSGS (United States Geological Survey)5.310 km6.2 mi(*)04:50:34.36Central Alaska18 km (11 mi) epicenter difference with USGSGFZ (German Research Centre for Geosciences)5.210 km6.2 mi(*)04:50:33.92CENTRAL ALASKA0 km (0 mi) epicenter difference with USGSEMSC (European-Mediterranean Seismological Centre)5.2810 km6.2 mi(*)04:50:36.492±0.3sEvent of magnitude 5.3, near Anchorage29 km (18 mi) epicenter difference with USGSEpicenter uncertainty: ± 4.7 kmRENASS (Réseau National de Surveillance Sismique (RéNaSS))Notes:(*) A depth given as 10 km often means that the the depth of the quake could be not determined with sufficient accuracy."; HTMLcontent += ""; mainMap.addToMap("station"+id, lat, lon, title,HTMLcontent); mainMap.map.panTo([lat,lon]); document.getElementById("map_canvas").scrollIntoView();}document.addEventListener("DOMContentLoaded", function () { var section = document.getElementById("seismogramSection"); if (!section) return; var images = section.querySelectorAll("img.waitBg"); if (!images.length) return; images.forEach(function(img, index){ img.addEventListener("error", function(){ // If the first image fails, hide the whole section. if (index === 0) { // Remove TOC entry var tocLink = document.querySelector('#toc .tocLink[data-href="seismogramSection"]'); if (tocLink) {tocLink.remove()} // Remove whole section section.remove(); } // Otherwise remove only this station. var plot = img.closest(".plotContainer"); if (!plot) return; var station = plot.previousElementSibling; var caption = plot.nextElementSibling; if (station) station.remove(); plot.remove(); if (caption) caption.remove(); // Remove empty "Show more" var more = document.getElementById("moreSeismograms"); if (more && !more.querySelector(".plotContainer")) { more.remove(); var btn = document.getElementById("moreSeismograms_1"); if (btn) btn.remove(); } // Hide section if nothing remains. if (!section.querySelector(".plotContainer")) { section.style.display = "none"; } }, { once: true }); });});]]>SeismogramsSeismic station: College Outpost, Alaska, USA (COLA/IU network) | Distance from quake: 364 km / 226 mi | Show on map | Station InfoSeismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.1-5.0 Hz. Source: NSF SAGE Facility IRISWS timeseriesplot Web ServiceSeismic station: ILAR Array, Site 31, Eielson, AK, USA (IL31/IM network) | Distance from quake: 387 km / 240 mi | Show on map | Station InfoShow moreAftershocks for this quakeSo far, only one aftershock has been recorded. It hit 8 minutes after the mainshock in 1.5 km (0.9 mi) distance. When more 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 40 km2 (15 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 11 km (7 mi).[More info]Recorded aftershocks, latest first (1 quake)Aug 8, 2026 04:58 am (Universal Time)5 minutes ago8 minutes after main shock2.45 km1.5 km (0.9 mi)SE of main shock55 km WNW of Skwentna, AlaskaMoreAug 8, 2026 04:50 am (Universal Time)13 minutes ago - felt5.610 km0 km - This quake57 km WNW of Skwentna, AlaskaMain 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 2,400 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.06 quakes per year (or 1 quake every 18.2 years)Mag. 5 or higher: 0.45 quakes per year (or 1 quake every 2.2 years)Mag. 4 or higher: 3.4 quakes per yearMag. 3 or higher: 22.8 quakes per yearMag. 2 or higher: 241 quakes per year (or 20.1 quakes per month)Mag. 1 or higher: 2,200 quakes per year (or 5.9 quakes per day)The area where this quake occurred has a high level of seismic activity. It has had at least 7 quakes above magnitude 6 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 earthquake