Light magnitude 3.9 earthquake at 18 km depth9 Aug 23:58 UTC: First to report: EMSC after 2 minutes.10 Aug 00:11: Hypocenter depth recalculated from 5.00 to 18.20 km (from 3.1 to 11.3 mi). Epicenter location corrected by 2.8 km (1.7 mi) towards WNW.I didn't feel itI felt this quakeEarthquake detailsDate & timeAug 9, 2026 23:56:58 UTC - Local time at epicenterSunday, Aug 9, 2026, at 11:56 pm (Universal Time GMT +0)StatusconfirmedMagnitude3.90Depth18.2 kmEpicenter latitude / longitude38.2072°N / 22.6131°EGreeceSeismic antipode38.2072°S / 157.387°WShaking intensityIII Weak shaking near epicenterFelt5 reportsPrimary data sourceEMSC (European-Mediterranean Seismological Centre)Nearest volcanoSousaki (52 km / 32 mi)Weather at epicenter at time of quakeClear Sky 26.7°C (80 F), humidity: 43%, wind: 2 m/s (3 kts) from NNEEstimated seismic energy released4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) | equivalent to ONE quake of magnitude 3.9 | about seismic energy15 minutes ago reported feltAug 9, 2026 23:56 GMT / Aug 9, 2026 11:56 pm (Universal Time)Lat / Lng: 38.2072 / 22.6131: GreeceSource: EMSCOther sources: RaspberryShake: 3.9 / 18 km, UOA: 3.9 / 2 km, 1 more...Detail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-23258406',38.20720,22.61310,'15 minutes ago: Mag. 3.9, Greece',html,'quakes-5-24.png',18,18,9,9,124]); 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 CreteNearby placesThe closest larger town where the quake might have been felt is Thivai, a town with 36,000 inhabitants in Greece, in 63 km (39 mi) distance east of the epicenter. People likely experienced very weak shaking there. Many smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of Greece, Athens, 101 km (63 mi) away from the epicenter, the earthquake was probably felt as very weak shaking.The following table shows some of the places that might have been affected (or not) by the shaking.DistancePlaceMax. shaking intensity(*)RegionCountry13 km (8 mi)S of epicenterKamari(pop: 885)III: WeakNomos Korinthias, PeloponneseGreece20 km (12 mi)N of epicenterAntikyra(pop: 1,450)III: WeakNomos Voiotias, Central GreeceGreece22 km (14 mi)NE of epicenterKyriaki(pop: 2,230)III: WeakNomos Voiotias, Central GreeceGreece24 km (15 mi)W of epicenterAigeira(pop: 1,460)III: WeakAchaea, West GreeceGreece25 km (15 mi)SE of epicenterKiato(pop: 9,810)III: WeakNomos Korinthias, PeloponneseGreece30 km (19 mi)NW of epicenterItea(pop: 4,780)III: WeakPhocis, Central GreeceGreece30 km (19 mi)N of epicenterArachova(pop: 2,660)III: WeakNomos Voiotias, Central GreeceGreece33 km (20 mi)E of epicenterDomvraina(pop: 1,140)III: WeakNomos Voiotias, Central GreeceGreece34 km (21 mi)NE of epicenterLivadeia(pop: 21,500)III: WeakNomos Voiotias, Central GreeceGreece35 km (22 mi)SE of epicenterAssos(pop: 1,920)III: WeakNomos Korinthias, PeloponneseGreece36 km (22 mi)W of epicenterDiakopto(pop: 5,600)III: WeakAchaea, West GreeceGreece41 km (25 mi)SE of epicenterLoutraki(pop: 11,600)III: WeakNomos Korinthias, PeloponneseGreece41 km (26 mi)NW of epicenterAmfissa(pop: 6,850)III: WeakPhocis, Central GreeceGreece42 km (26 mi)SE of epicenterCorinth(pop: 30,200)III: WeakPeloponneseGreece43 km (27 mi)S of epicenterNemea(pop: 3,850)III: WeakNomos Korinthias, PeloponneseGreece45 km (28 mi)NE of epicenterOrchomenos(pop: 5,920)III: WeakNomos Voiotias, Central GreeceGreece45 km (28 mi)N of epicenterKato Tithorea(pop: 2,750)III: WeakNomos Fthiotidos, Central GreeceGreece46 km (29 mi)NE of epicenterAliartos(pop: 4,280)III: WeakNomos Voiotias, Central GreeceGreece47 km (29 mi)W of epicenterAigio(pop: 20,400)III: WeakAchaea, West GreeceGreece48 km (30 mi)SW of epicenterKalavryta(pop: 1,630)III: WeakAchaea, West GreeceGreece48 km (30 mi)N of epicenterAmfiklia(pop: 3,010)III: WeakNomos Fthiotidos, Central GreeceGreece48 km (30 mi)S of epicenterAyios Vasilios(pop: 1,260)III: WeakNomos Korinthias, PeloponneseGreece51 km (32 mi)SE of epicenterAthikia(pop: 1,830)II: Very weakNomos Korinthias, PeloponneseGreece53 km (33 mi)E of epicenterKaparellion(pop: 1,480)II: Very weakNomos Voiotias, Central GreeceGreece54 km (34 mi)N of epicenterGravia(pop: 1,810)II: Very weakPhocis, Central GreeceGreece55 km (34 mi)SW of epicenterKleitoria(pop: 2,040)II: Very weakAchaea, West GreeceGreece56 km (35 mi)SE of epicenterAgioi Theodoroi(pop: 4,640)II: Very weakNomos Korinthias, PeloponneseGreece60 km (37 mi)NE of epicenterAtalanti(pop: 4,980)II: Very weakNomos Fthiotidos, Central GreeceGreece60 km (37 mi)NE of epicenterAkraifnia(pop: 1,200)II: Very weakNomos Voiotias, Central GreeceGreece60 km (37 mi)SE of epicenterSofikon(pop: 1,680)II: Very weakNomos Korinthias, PeloponneseGreece63 km (39 mi)E of epicenterThivai(pop: 36,500)II: Very weakNomos Voiotias, Central GreeceGreece63 km (39 mi)E of epicenterVilia(pop: 1,270)II: Very weakNomos Attikis, AtticaGreece64 km (40 mi)W of epicenterEfpalio(pop: 5,510)II: Very weakPhocis, Central GreeceGreece65 km (40 mi)SW of epicenterLevidion(pop: 1,030)II: Very weakNomos Arkadias, PeloponneseGreece65 km (40 mi)S of epicenterArgos(pop: 22,200)II: Very weakArgolida, PeloponneseGreece65 km (41 mi)N of epicenterKamena Vourla(pop: 2,760)II: Very weakNomos Fthiotidos, Central GreeceGreece67 km (42 mi)N of epicenterMolos(pop: 1,970)II: Very weakNomos Fthiotidos, Central GreeceGreece68 km (42 mi)E of epicenterMegara(pop: 23,500)II: Very weakNomos Attikis, AtticaGreece71 km (44 mi)NE of epicenterMalesina(pop: 3,830)II: Very weakNomos Fthiotidos, Central GreeceGreece101 km (63 mi)E of epicenterAthens(pop: 664,000)II: Very weakNomarchia Athinas, AtticaGreeceNotes:(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.User-reports for this quake (5)So far, we have received 5 reports for this quake from Greece and Spain. The quake was reported to have been felt in up to approx. 50–100 km (31–62 mi) distance.Most reports came from Xylokastro (1 report), a town with 5,500 inhabitants in Peloponnese in 14.5 km (9 mi) distance south of the epicenter, Greece, Athens (1 report), the capital of Greece with 660,000 inhabitants in Attica in 101 km (63 mi) distance east of the epicenter, and Corinth (1 report) (42 km or 26 mi to the southeast) in Peloponnese. Further below is a list of places where most people reported this quake.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!TranslateDelphos / Weak shaking (MMI III) / rattling, vibrating / 10-15 sΞυλοκαστρο (14.4 km S of epicenter) [Map] / Light shaking (MMI IV)Kiato (42.2 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 sxylokastro (100.8 km ESE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s : weak long side to side shaking Xylokastro Greece (14.3 km S of epicenter) [Map] / Weak shaking (MMI III) / 2-5 sList of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsXylokastro, Peloponnese, Greece(Pop.: 5,500)14.5 km (9 mi)S of epicenterIII: Weak shaking1Athens, Attica, Greece(Pop.: 664,046)101 km (63 mi)E of epicenterIII: Weak shaking1Corinth, Peloponnese, Greece(Pop.: 30,176)42 km (26 mi)SE of epicenterIII: Weak shaking1Zaragoza, Aragon, Spain(Pop.: 686,986)2,033 km (1,263 mi)W of epicenterIII: Weak shaking1Note: Only reports with latitude/longitude coordinate positions given (5 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 (*)III: Weak shaking314.2–101 km (8.9–63 mi)52 km (33 mi)IV: Light shaking114.4–14.4 km (8.9–8.9 mi)14.4 km (9 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (5 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 GMT2026-08-9EpicenterAgency3.918 km11 mi23:56:58.834GREECEEMSC (European-Mediterranean Seismological Centre)3.918 km11 mi23:56:58Greece0 km (0 mi) epicenter difference with EMSCRaspberryShake (RaspberryShake)3.92 km1.2 mi23:57:00.2430.7 km SW of Levadhia3.6 km (2.3 mi) epicenter difference with EMSCUOA (University of Athens - Seismological Laboratory)3.95 km3.1 mi23:56:59.9916 Km N from Xylokastron3 km (1.9 mi) epicenter difference with EMSCNOA (National Observatory of Athens)3.855 km3.1 mi23:57:00.296Gulf of Corinth - C. Greece3.5 km (2.2 mi) epicenter difference with EMSCEpicenter uncertainty: ± 0.7 kmAUTH (Aristotle University of Thessaloniki Geophysical Lab.)Earthquake statisticsAverage number of earthquakesBased on data from the past 56 years and our earthquake archive back to 1900, there are about 7,600 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.16 quakes per year (or 1 quake every 6.3 years)Mag. 5 or higher: 1.06 quakes per yearMag. 4 or higher: 12.8 quakes per yearMag. 3 or higher: 119 quakes per year (or 9.9 quakes per month)Mag. 2 or higher: 1,400 quakes per year (or 3.8 quakes per day)Mag. 1 or higher: 6,700 quakes per year (or 18.4 quakes per day)The area where this quake occurred has a very high level of seismic activity. It has had at least 20 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 earthquake