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Moderate mag. 5.5 earthquake - Aegean Sea, 131 km northeast of Heraklion, Crete, Greece, on Monday, Nov 21, 2022 at 1:25 am (GMT +2) -

Moderate mag. 5.5 earthquake - Aegean Sea, 131 km northeast of Heraklion, Crete, Greece, on Monday, Nov 21, 2022 at 1:25 am (GMT +2) Moderate mag. 5.5 earthquake - Aegean Sea, 131 km northeast of Heraklion, Crete, Greece, on Monday, Nov 21, 2022 at 1:25 am (GMT +2)

Moderate magnitude 5.5 earthquake at 47 km depth

20 Nov 23:27 UTC: First to report: VolcanoDiscovery after 3 minutes.
20 Nov 23:28: Now using data updates from GFZ
20 Nov 23:31: Now using data updates from NOA
20 Nov 23:47: Hypocenter depth recalculated from 42.8 to 46.9 km (from 27 to 29 mi). Epicenter location corrected by 12 km (7.3 mi) towards NW.
Update Sun, 20 Nov 2022, 23:36

Magnitude 5.5 earthquake strikes near Heraklion, Crete, Greece

5.5 quake 21 Nov 1:25 am (GMT +2)
5.5 quake 21 Nov 1:25 am (GMT +2)
A moderately shallow magnitude 5.5 earthquake was reported early morning near Heraklion, Crete, Greece.
According to the National Observatory of Athens (NOA), the quake hit on Monday, November 21st, 2022, at 1:25 am local time at a moderately shallow depth of 42.8 km. 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.
A second report was later issued by France's Réseau National de Surveillance Sismique (RéNaSS), which listed it as a magnitude 5.4 earthquake. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 5.5, the German Research Centre for Geosciences (GFZ) at magnitude 5.2, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 6.0.
Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.
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.
In Agia Marina (pop. 440) located 48 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Pigadia (pop. 2,200) located 66 km from the epicenter, Sitia (pop. 8,700) 70 km away, Agios Nikolaos (pop. 11,400) 95 km away, Neapoli (pop. 2,700) 99 km away, and Heraklion (pop. 137,200) 134 km away.
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.

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Earthquake details

Date & timeNov 20, 2022 23:25:01 UTC -
Local time at epicenterMonday, Nov 21, 2022 at 1:25 am (GMT +2)
StatusConfirmed
Magnitude5.5
Depth46.9 km
Epicenter latitude / longitude35.8099°N / 26.4606°E (Aegean Sea, Greece)
Antipode35.81°S / 153.539°W
Shaking intensityLight shaking
Felt204 reports
Primary data sourceNOA (National Observatory of Athens)
Nearest volcanoNisyros (106 km / 66 mi)
Nearby towns and cities60 km (37 mi) NW of Agia Marina (Dodecanese) (pop: 444) | Show on map | Quakes nearby
74 km (46 mi) NNE of Sitia (pop: 8,710) | Show on map | Quakes nearby
76 km (47 mi) WNW of Pigadia (pop: 2,240) | Show on map | Quakes nearby
96 km (60 mi) NE of Agios Nikolaos (pop: 11,400) | Show on map | Quakes nearby
131 km (81 mi) ENE of Heraklion (pop: 137,200) | Show on map | Quakes nearby
141 km (88 mi) SSW of Kos Stadt (Kos) (pop: 19,200) | Show on map | Quakes nearby
173 km (107 mi) WSW of Rhodos (pop: 56,100) | Show on map | Quakes nearby
343 km (213 mi) SE of Athens (pop: 664,000) | Show on map | Quakes nearby
87 km (54 mi) SE of Anaphi Island (pop: 271) | Show on map | Quakes nearby
130 km (81 mi) ENE of Kreta Island (pop: 623,100) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 20.6°C (69 F), humidity: 80%, wind: 11 m/s (20 kts) from SSE
Estimated seismic energy released1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The 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.
Mag.DepthLocationSource
5.547 kmGreece: 63 Km NW From KassosNOA
5.581 kmCRETE, GREECEEMSC
5.473 kmCrete, GreeceGFZ
5.571 kmCrete, GreeceRaspberryShake
5.410 kmGreece: Near İzmirRENASS
5.483 kmCrete, Greece [Sea: Greece]INGV
5.369 kmGreece: MEDITERRANEAN SEAKOERI-RETMC
5.563 kmCrete, GreeceUSGS
5.510 kmCrete, GreeceIRIS
5.483 kmCrete, GreeceGeoAu
5.483 kmGreece: Anafi / KretaZAMG

Seismograms

Seismic station: Ankara, Turkey (ANTO/IU network) | Distance from quake: 716 km / 445 mi | Show on map | Station Info
Seismic station Ankara, Turkey: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (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: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (208)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Cairo (779.1 km SE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 10-15 s : I'm on the 5th floor ... lying in bed, felt the building shaking. It was quite scary as it went on for a while. | 7 users found this interesting.  
Agios Nikolaos (96.3 km SW of epicenter) [Map] / Light shaking (MMI IV) / 15-20 s : I have been sleeping for the past 1hr so the earthquake has woken me up and got me dizzy, the duration was unimaginable long! Tectonic earthquake and not so deep I guess. | 5 users found this interesting.  
Prassas, Heraklion / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s : Moderate horizontal shaking of the house, which was lasting and intensifying for about 3-7 seconds and then stopped. No aftershocks felt. The water in the swimming pool was disturbed. Dogs started barking all over the city. Will get the house checked for any other minor damage in the morning | 5 users found this interesting.  
Alanya / Weak shaking (MMI III) / vertical swinging (up and down) / 2-5 s : Лёжа на кровати сначала не поняла, но несколько секунд была качка, висящий предмет раскачался(( | 5 users found this interesting.  
Herakleion (130.8 km WSW of epicenter) [Map] / Light shaking (MMI IV) / vibration and rolling / 5-10 s : In the bed, I couldn't sleep. Suddenly I felt like something heavy is coming towards me and then shaking of surroundings. Not too powerful, but you could feel the shakes easily. Felt like it lasted for 7-11 seconds. | 4 users found this interesting.  
Panormos, Rethymno, Crete (165.6 km WSW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 2-5 s : Was sitting outside and had a good night Drink My pool got waves. A loud rumour came up for two SEC's. | 4 users found this interesting. (reported through our app)  
near Palekastro, Lasíthi, Crète (88 km SSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 5-10 s : Started as light shake increased intensity on 3rd or 4th second. In total, maybe, 7 seconds. | 5 users found this interesting.  
Chania, Crete (223.2 km W of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : short earthquake, about 10 seconds, horizontal mostly, things and room shaking | 5 users found this interesting.  
Santorini (342.3 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : In Vothonas Village in Santorini Greece about 1:24 the bed started shaking and woke me from my sleep. | 3 users found this interesting.  
Darnah libya ???????? / Light shaking (MMI IV) / single vertical bump / 5-10 s | 2 users found this interesting. (reported through our app)  
Screenshot... .jpg (public domain)
Crete Greece (99 km SW of epicenter) [Map] / Weak shaking (MMI III) / complex motion difficult to describe : είδα την υφασμάτινη ντουλάπα να κουνάει και φοβόμουν ότι θα πέσει πάνω μου έκανε διακοπή ρεύματος για 2 λεπτά αλλά μετά επανήλθε | 2 users found this interesting.  
Heraklion (131.1 km WSW of epicenter) [Map] / Light shaking (MMI IV) : Felt it while laying in bed. It got stronger, I heard some cracking/crumbling in the walls | 3 users found this interesting.  
Santorini , Greece (114.8 km NW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 5-10 s : Woke up. House made noise. Dishes made noise. Doorframes creaked | 3 users found this interesting.  
Agia pelagia Crete (138.3 km WSW of epicenter) [Map] / Moderate shaking (MMI V) : Woke up and everything in the room was shaking | 3 users found this interesting.  
Chersonissos. (111.1 km WSW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s : Shaking furniture. | 3 users found this interesting.  
Chania, Crete / Light shaking (MMI IV) / vibration and rolling / 15-20 s : Fairly significant rolling and bumping - we live on 3rd floor (4th floor by US standards), so surely we felt it more prominently. | 2 users found this interesting.  
Alexandria, Egypt (604.2 km SE of epicenter) [Map] / Moderate shaking (MMI V) / 10-15 s : I was awake, on my bed and the cats were uneasy, all three staring at darkness with their ears an alert. Then the bed moved, not violently but definitely a movement. The portable clothes hanger moved on the balcony and the leaves were rustling more violently as if there were birds fighting in it without sound. I thought I imagined it but then I heard the neighbours talking in nervous voices. My colleagues sent me a message asking if I felt the earth move too. Was awesome but unsettling a bit | One user found this interesting.  
Kaliva (198 km WSW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s : Sitting around learning lucid dreaming. Shakeing ground. Minor noises from wooden building structures. Peace & Love | One user found this interesting.  
Alikarnassos / Moderate shaking (MMI V) / horizontal (sideways) swinging / 2-5 s : .moderate shaking,woke everybody up | 3 users found this interesting.  
κοκκινη χανι (121.7 km WSW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : start with a very slowly low frequency sound and after 8 sec make the main earthquake | 2 users found this interesting.  
Sitia (75.8 km SSW of epicenter) [Map] / Moderate shaking (MMI V) / single lateral shake / 30-60 s : Ça va Pas trop fort | 2 users found this interesting.  
Heraklion (131.2 km WSW of epicenter) [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 30-60 s : Strong shaking | 2 users found this interesting.  
Alanya (502.1 km E of epicenter) [Map] / Weak shaking (MMI III) : My bed was shaking for 4 seconds , and the electricity went out after 10 minutes | 2 users found this interesting.  
heraclio (151.7 km WSW of epicenter) [Map] / Light shaking (MMI IV) / 5-10 s : crete | 2 users found this interesting.  
Chania (223.4 km W of epicenter) [Map] / Weak shaking (MMI III) : The shaking woke me up but it passed very quickly | 2 users found this interesting.  
Marmaris, Muğla (198 km NE of epicenter) [Map] / Light shaking (MMI IV) : Спала, кровать и шкаф немного тряслись | 2 users found this interesting.  
Alanya (505.6 km E of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s : I feel shack in hotel | 2 users found this interesting.  
Heraklion, Crete (126.8 km WSW of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / 2-5 s : Two consecutive shakes, the second stronger | 2 users found this interesting. (reported through our app)  
Alexandria (605 km SE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / very short : stuff shaked for a bit | 2 users found this interesting.  
Marmaris, Muğla (199.8 km NE of epicenter) [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s : We are sitting | 2 users found this interesting.  
Marmaris Turkey (198.7 km NE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 15-20 s : Yes there was shaking | 2 users found this interesting.  
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Aftershocks

[More info]

Recorded aftershocks, latest first (15 quakes)

Date and timeMag
Depth
LocationDetails
Jan 8, 2023 18:39
4 weeks ago
2.8

14 km
Aegean Sea, 61 km NE of Sitia, Lasithi, Crete, GreeceMore
Dec 22, 2022 13:06
6 weeks ago
4.1

57 km
Aegean Sea, 130 km NE of Heraklion, Crete, GreeceMore
Dec 16, 2022 09:55
7 weeks ago
2.9

10 km
Aegean Sea, 53 km S of Astypalaia, Dodecanese, South Aegean, GreeceMore
Dec 15, 2022 15:12
7 weeks ago
3.4

59 km
Aegean Sea, 130 km NE of Heraklion, Crete, GreeceMore
Dec 13, 2022 04:14
7 weeks ago
3.4

28 km
Aegean Sea, 48 km W of Pigadia, Dodecanese, South Aegean, GreeceMore
Dec 10, 2022 21:45
8 weeks ago
2.4

59 km
Aegean Sea, 68 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 28, 2022 01:30
10 weeks ago
2.6

31 km
Aegean Sea, 63 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 23, 2022 00:55
10 weeks ago
2.5

47 km
Aegean Sea, 71 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 22, 2022 21:40
10 weeks ago
2.6

61 km
Aegean Sea, 71 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 22, 2022 20:11
10 weeks ago
2.2

25 km
Aegean Sea, 44 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 22, 2022 08:18
10 weeks ago
3.3

54 km
Aegean Sea, 130 km NE of Heraklion, Crete, GreeceMore
Nov 21, 2022 14:23
10 weeks ago
3.0

60 km
Aegean Sea, 74 km N of Sitia, Lasithi, Crete, GreeceMore
Nov 21, 2022 01:16
11 weeks ago
2.8

52 km
GreeceMore
Nov 20, 2022 23:50
11 weeks ago - felt
3.1

46 km
Aegean Sea, 127 km NE of Heraklion, Crete, GreeceMore
Nov 20, 2022 23:30
11 weeks ago
3.2

24 km
Aegean Sea, 69 km N of Sitia, Lasithi, Crete, GreeceMore

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