Moderate mag. 4.5 earthquake - 41 km northeast of Oia, Nomos Kykladon, South Aegean, Greece, on Thursday, Jul 10, 2025, at 01:54 am (GMT +3)

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Moderate magnitude 4.4 earthquake at 16 km depth9 Jul 22:56 UTC: First to report: RaspberryShake after 2 minutes.9 Jul 22:56: Now using data updates from EMSC... [show all] ...9 Jul 22:56: Magnitude recalculated from 4.3 to 4.5.9 Jul 22:57: Magnitude recalculated from 4.5 to 4.6.9 Jul 22:57: Magnitude recalculated from 4.6 to 4.5.9 Jul 22:58: Now using data updates from NOA9 Jul 23:00: Magnitude recalculated from 4.3 to 4.5. Epicenter location corrected by 4.2 km (2.6 mi) towards SE.9 Jul 23:04: Magnitude recalculated from 4.5 to 4.4. Hypocenter depth recalculated from 5.00 to 16.20 km (from 3.1 to 10.1 mi). Epicenter location corrected by 6.5 km (4 mi) towards NW.I didn't feel itI felt this quakeEarthquake detailsDate & timeJul 9, 2025 22:54:07 UTC - Local time at epicenterWednesday, Jul 9, 2025, at 10:54 pm (Universal Time GMT +0)Statusconfirmed (manually revised)Magnitude4.4Depth16.2 kmEpicenter latitude / longitude36.6527°N / 25.7552°EGreeceSeismic antipode36.6527°S / 154.245°WQuality93 seismic stations (EMSC)Shaking intensityIV Light shaking near epicenterFelt13 reportsPrimary data sourceNOA (National Observatory of Athens)Nearest volcanoKolumbo (28 km / 17 mi)Weather at epicenter at time of quakeClear Sky 24.4°C (76 F), humidity: 87%, wind: 7 m/s (14 kts) from WEstimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | equivalent to ONE quake of magnitude 4.4 | about seismic energy11 minutes ago reported feltJul 9, 2025 22:54 GMT / Jul 9, 2025 10:54 pm (Universal Time)Lat / Lng: 36.6527 / 25.7552: 16 km SSW From Arkesini AmorgosSource: NOAOther sources: RaspberryShake: 4.6 / 54 km, AUTH: 4.4 / 6.1 km, 1 more...Detail info | Read user reports | You felt it? - Report it!';storedMarkers.push(['quake-21943139',36.65270,25.75520,'11 minutes ago: Mag. 4.4, 16 km SSW From Arkesini Amorgos',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+="&notFelt=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 Naxos, a town with 7,100 inhabitants in Greece, in 61 km (38 mi) distance northwest of the epicenter. People likely experienced 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, 233 km (144 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(*)RegionCountry15 km (9 mi)N of epicenterKalotaritissa(pop: 20)IV: LightNomos Kykladon, South AegeanGreece24 km (15 mi)NE of epicenterAmorgos(pop: 397)IV: LightNomos Kykladon, South AegeanGreece32 km (20 mi)NW of epicenterPanayia(pop: 211)III: WeakNomos Kykladon, South AegeanGreece36 km (22 mi)NE of epicenterAigiali(pop: 261)III: WeakNomos Kykladon, South AegeanGreece40 km (25 mi)SW of epicenterOia(pop: 3,380)III: WeakNomos Kykladon, South AegeanGreece43 km (27 mi)SW of epicenterEmporeio(pop: 1,950)III: WeakNomos Kykladon, South AegeanGreece43 km (27 mi)W of epicenterIos(pop: 2,020)III: WeakNomos Kykladon, South AegeanGreece46 km (29 mi)NW of epicenterAgiassos(pop: 83)III: WeakNomos Kykladon, South AegeanGreece50 km (31 mi)N of epicenterDonoussa(pop: 141)III: WeakNomos Kykladon, South AegeanGreece50 km (31 mi)NW of epicenterFilotion(pop: 1,480)III: WeakNomos Kykladon, South AegeanGreece54 km (34 mi)E of epicenterAstypalaia(pop: 1,130)III: WeakDodecanese, South AegeanGreece58 km (36 mi)N of epicenterKoronis(pop: 279)III: WeakNomos Kykladon, South AegeanGreece61 km (38 mi)NW of epicenterNaxos(pop: 7,070)III: WeakNomos Kykladon, South AegeanGreece72 km (45 mi)NW of epicenterParos(pop: 5,290)III: WeakNomos Kykladon, South AegeanGreece75 km (46 mi)W of epicenterFolegandros(pop: 667)III: WeakNomos Kykladon, South AegeanGreece102 km (63 mi)NE of epicenterSkala(pop: 1,750)II: Very weakDodecanese, South AegeanGreece233 km (144 mi)NW 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 (14)So far, we have received 14 reports for this quake from  Greece,  Spain, and  United Kingdom. Out of these, 13 people indicated they felt it. The quake was reported to have been felt in up to approx. 200–500 km (124–311 mi) distance.The majority of reports came from Naxos (1 report), a town with 7,100 inhabitants in South Aegean in 61 km (38 mi) distance northwest of the epicenter, Greece, Irakleion (1 report), a city with more than 140,000 inhabitants in Crete in 157 km (98 mi) distance south of the epicenter, and Zaragoza (1 report) (2,353 km or 1,462 mi to the west), a city with more than 680,000 inhabitants in Aragon, Spain. 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!TranslatePerivolos (157.3 km SSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 30-60 s : Bit shaking   Mykonos (95.7 km NNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 sIos (42.4 km W of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : Very loud!   45 km SW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)Naxos cyclades (52.2 km NW of epicenter) [Map] / Very weak shaking (MMI II)Naxos / Light shaking (MMI IV) / vertical swinging (up and down) / 2-5 sSantorini (504.1 km N of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : Vibrieren   Naxos (51.9 km NNW of epicenter) [Map] / Light shaking (MMI IV)Kamari, Santorini (232.5 km NW of epicenter) [Map] / Weak shaking (MMI III) / single lateral shake / 1-2 sAg. Thalaleos, (84 300) NAXOS / Weak shaking (MMI III) / vibration and rolling / 5-10 s145.7 km ENE of epicenter [Map] / not felt (reported through our app)Paroikia (72.2 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 1-2 s59.6 km NW of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 sNáxos Greece (58.9 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 sList of cities/places with most reportsPlaceDistance from epicenterAverage reported Shaking IntensityNr. of reportsNaxos, South Aegean, Greece(Pop.: 7,070)61 km (38 mi)NW of epicenterII: Very weak shaking1Irakleion, Crete, Greece(Pop.: 137,154)157 km (98 mi)S of epicenterIII: Weak shaking1Zaragoza, Aragon, Spain(Pop.: 675,301)2,353 km (1,462 mi)W of epicenterIII: Weak shaking1Athens, Attica, Greece(Pop.: 664,046)233 km (144 mi)NW of epicenterIII: Weak shaking1London, England, United Kingdom(Pop.: 8,961,989)2,623 km (1,630 mi)NW of epicenterIV: Light shaking1Note: Only reports with latitude/longitude coordinate positions given (14 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 (*)I: Not felt1146–146 km (90–90 mi)146 km (90 mi)II: Very weak shaking352–504 km (32–313 mi)209 km (130 mi)III: Weak shaking260–157 km (37–98 mi)108 km (67 mi)IV: Light shaking542–96 km (26–59 mi)59 km (36 mi)Notes(*) Reports are filtered to exclude those that are likely highly inaccurate or esaggerated.Only reports with latitude/longitude coordinate positions given (14 in total) could be used for geographic statistics.I 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 GMT2025-07-9EpicenterAgency4.416 km10.1 mi22:54:07.8816 Km SSW from Arkesini AmorgosNOA (National Observatory of Athens)4.654 km34 mi22:54:12Dodecanese Islands, Greece26 km (16 mi) epicenter difference with NOARaspberryShake (RaspberryShake)4.41± 0.156.1 km3.8 mi±1.2 km22:54:08.194±0.14sSantorini Isl. - S. Greece1.3 km (0.8 mi) epicenter difference with NOAEpicenter uncertainty: ± 1.2 kmAUTH (Aristotle University of Thessaloniki Geophysical Lab.)4.410 km6.2 mi(*)22:54:09.5737.9 km NE of Thira2.4 km (1.5 mi) epicenter difference with NOAUOA (University of Athens - Seismological Laboratory)4.5954 km34 mi22:54:12.73Dodecanese Islands, Greece26 km (16 mi) epicenter difference with NOAGFZ (German Research Centre for Geosciences)4.55 km3.1 mi22:54:07.992±0.16sDODECANESE ISLANDS, GREECE4.3 km (2.7 mi) epicenter difference with NOAEMSC (European-Mediterranean Seismological Centre)4.310 km6.2 mi(*)22:54:09Dodecanese Islands, Greece16 km (9.9 mi) epicenter difference with NOASSS (Seismological Survey of Serbia)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 3 km2 (1 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).[More info]Recorded aftershocks, latest first (0 quake)Jul 9, 2025 10:54 pm (Universal Time)11 minutes ago - felt4.416 km0 km - This quakeAegean Sea, 27 km S of Nisi Amorgos Island, Nomos Kykladon, South Aegean, GreeceMain Shock (this quake)MoreMap of aftershocksEarthquake statisticsAverage number of earthquakesBased on data from the past 55 years and our earthquake archive back to 1900, there are about 3,200 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):Mag. 6 or higher: 0.03 quakes per year (or 1 quake every 31.3 years)Mag. 5 or higher: 0.41 quakes per year (or 1 quake every 2.4 years)Mag. 4 or higher: 39.2 quakes per year (or 3.3 quakes per month)Mag. 3 or higher: 343 quakes per year (or 28.6 quakes per month)Mag. 2 or higher: 1,700 quakes per year (or 4.8 quakes per day)Mag. 1 or higher: 3,100 quakes per year (or 8.5 quakes per day)The area where this quake occurred has a high level of seismic activity. It has had at least 4 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 30 to 35 years.Number of quakes per yearPrevious quakes in the same area of this earthquakeThe earthquake occurred 13 hours after a magnitude 4.9 earthquake had hit on Wednesday, Jul 9, 2025, at 01:04 pm (GMT +3 local time) in 71 km (44 mi) distance to the south:Mag. 4.9 earthquake Aegean Sea - 40 km south of Nisi Anafi Island, Greece - The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 5.3. It had occurred 21 weeks earlier, on Monday, Feb 10, 2025, at 11:16 pm local time (Europe/Athens GMT +3) in Aegean Sea,  Greece:Mag. 5.3 earthquake Aegean Sea - 21 km southwest of Nisi Amorgos Island, Greece - Feb 10, 2025 - The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.8. It had occurred 122 years ago earlier, on Tuesday, Aug 11, 1903, at 07:32 am local time (Europe/Athens GMT +3) in Attica,  Greece:Mag. 7.8 earthquake Ionian Sea - Attica, Greece - Aug 11, 1903 - 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 9, 01:04 pm (GMT +3)4.910 km71 km (44 mi) to the SAegean Sea, 40 km south of Nisi Anafi Island, Greece  I FELT IT - 3 reportsInfoJul 3, 02:25 am (Athens)4.111 km3.4 km (2.1 mi) to the NAegean Sea, 23 km southwest of Nisi Amorgos Island, Greece  I FELT IT - 6 reportsInfoJun 20, 07:18 pm (Athens)4.615 km3 km (1.9 mi) to the NWAegean Sea, 23 km southwest of Nisi Amorgos Island, Greece 50 reportsInfoMay 13, 01:30 am (Athens)4.67.7 km7.3 km (4.5 mi) to the NWAegean Sea, 23 km southwest of Nisi Amorgos Island, Greece 66 reportsInfoApr 20, 10:32 am (Athens)4.314 km4.4 km (2.8 mi) to the NAegean Sea, 21 km southwest of Nisi Amorgos Island, Greece 15 reportsInfoFeb 18, 08:08 am (Athens)5.110 km12 km (7.5 mi) to the W 29 km NE of Oía, Greece 10 reportsInfoFeb 18, 07:46 am (Athens)5.110 km12 km (7.7 mi) to the SEAegean Sea, 22 km north of Nisi Anafi Island, Greece 22 reportsInfoFeb 12, 03:14 am (Athens)5.110 km21 km (13 mi) to the SWAegean Sea, 19 km northeast of Santorini Island, Greece 17 reportsInfoFeb 11, 12:37 am (Athens)5.110 km12 km (7.6 mi) to the W 28 km NE of Oía, Greece 94 reportsInfoFeb 10, 11:16 pm (Athens)5.312 km4.2 km (2.6 mi) to the NEAegean Sea, 21 km southwest of Nisi Amorgos Island, Greece 176 reportsInfoFeb 9, 10:05 pm (Athens)5.210 km13 km (8 mi) to the NWAegean Sea, 22 km southeast of Heraklia Island, Cyclades, South Aegean, Greece 62 reportsInfoFeb 8, 12:00 pm (Athens)5.110 km26 km (16 mi) to the SWAegean Sea, 12 km northeast of Santorini Island, Greece 12 reportsInfoFeb 7, 09:16 am (Athens)5.110 km17 km (10.4 mi) to the SWAegean Sea, 22 km northeast of Santorini Island, Greece 20 reportsInfoFeb 5, 09:09 pm (Athens)5.110 km12 km (7.2 mi) to the W 30 km NE of Oía, Greece 43 reportsInfoFeb 4, 04:04 pm (Athens)5.313 km25 km (16 mi) to the SWAegean Sea, 14 km northeast of Santorini Island, Cyclades, South Aegean, Greece 51 reportsInfoApr 26, 2023 11:00 pm (Athens)5.2108 km68 km (42 mi) to the SE Greece: 25 Km S From Astipalaia 503 reportsInfoDec 20, 2016 08:03 am (Athens)5.2131 km104 km (64 mi) to the E Dodecanese Islands, Greece 22 reportsInfoJan 27, 2012 03:33 am (GMT +2)5.35.2 km92 km (57 mi) to the SW 48 km SW of Emporeío, GreeceInfoJan 26, 2012 06:24 am (GMT +2)5.229 km90 km (56 mi) to the SW Dodecanese Islands, GreeceInfoAug 31, 2007 11:52 pm (Athens)5.225 km46 km (29 mi) to the E 13 km NNW of Astypálaia, GreeceInfoOct 7, 2004 04:05 am (Athens)5.5129 km96 km (60 mi) to the EAegean Sea, 38 km southwest of Nisi Nisyros Island, GreeceInfoSep 13, 2003 04:46 pm (Athens)5.3155 km104 km (65 mi) to the E 13 km SSW of Kéfalos, GreeceInfoAug 22, 1995 08:34 am (Athens)5.1168 km85 km (53 mi) to the E Dodecanese Islands, GreeceInfoSep 28, 1983 02:59 am (Athens)5.5159 km103 km (64 mi) to the E 7 km SW of Kéfalos, GreeceInfoDec 19, 1981 04:10 pm (GMT +2)7.210 km292 km (181 mi) to the NAegean Sea, 36 km southeast of Nisi Agios Efstratios Island, GreeceInfoNov 28, 1978 08:02 pm (Athens)5.0123 km78 km (48 mi) to the SE 43 km S of Astypálaia, GreeceInfoApr 25, 1957 05:25 am (Istanbul)7.335 km265 km (164 mi) to the E 34 km S of Sarigerme, TurkeyInfoApr 24, 1957 10:10 pm (Istanbul)7.135 km275 km (171 mi) to the E 27 km SSE of Sarigerme, TurkeyInfoJul 30, 1956 12:40 pm (GMT +2)5.615 km74 km (46 mi) to the S 61 km southeast of Messaria, Nomos Kykladon, South Aegean, GreeceInfoJul 10, 1956 06:01 am (Athens)5.615 km41 km (26 mi) to the E Dodecanese Islands, GreeceInfoJul 9, 1956 11:13 pm (Athens)5.515 km41 km (25 mi) to the NE 16 km southeast of Aigiali, Nomos Kykladon, South Aegean, GreeceInfoJul 9, 1956 06:24 am (Athens)6.80 km52 km (32 mi) to the W Greece: Aegean SeaInfoJul 9, 1956 06:11 am (Athens)7.720 km18 km (11 mi) to the EAegean Sea, 21 km south of Nisi Amorgos Island, GreeceInfoJul 23, 1949 03:03 pm (Universal Time)7.115 km238 km (148 mi) to the NAegean Sea, 31 km northwest of Uzunada Island, Izmir, TurkeyInfoFeb 9, 1948 12:58 pm (Universal Time)7.315 km169 km (105 mi) to the SE 16 km north of Karpathos, Dodecanese, South Aegean, GreeceInfoApr 12, 1946 07:36 am (Universal Time)5.515 km90 km (56 mi) to the SE 39 km SE of Astypálaia, GreeceInfoNov 9, 1934 01:40 pm (Universal Time)5.615 km61 km (38 mi) to the SWAegean Sea, 23 km southwest of Santorini Island, GreeceInfoJul 1, 1927 11:19 am (Athens)7.30 km268 km (167 mi) to the WIonian Sea, 46 km southeast of Sparti, Nomos Lakonias, Peloponnese, GreeceInfoApr 2, 1920 03:34 pm (Universal Time)5.515 km93 km (58 mi) to the E 40 km ESE of Astypálaia, GreeceInfoOct 25, 1919 05:10 pm (Universal Time)6.015 km19 km (12 mi) to the SEAegean Sea, 18 km northeast of Anafi Island, Cyclades, South Aegean, GreeceInfoApr 4, 1911 03:43 pm (Universal Time)6.015 km14 km (8.9 mi) to the SAegean Sea, 18 km north of Nisi Anafi Island, GreeceInfoAug 11, 1903 07:32 am (Athens)7.80 km257 km (160 mi) to the WIonian Sea, 27 km south of Cythera Island, Nomos Attikis, Attica, GreeceInfoMap 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]