Moderate mag. 4.5 earthquake - Aegean Sea, 15 km south of Nisida Garmpias Island, Lesvos, North Aegean, Greece, on Monday, 1 Feb 2021 8:00 am (GMT +2) -

This quake was likely an aftershock of the 4.8 quake Aegean Sea, 12 km south of Nisida Garmpias Island, Lesvos, North Aegean, Greece, 1 Feb 2021 7:47 am (GMT +2), which had occurred 12 minutes earlier.
Moderate mag. 4.5 earthquake - Aegean Sea, 15 km south of Nisida Garmpias Island, Lesvos, North Aegean, Greece, on Monday, 1 Feb 2021 8:00 am (GMT +2)

Moderate magnitude 4.5 earthquake at 16 km depth

1 Feb 06:02 UTC: First to report: GFZ after 3 minutes.
1 Feb 06:06: Magnitude recalculated from 5.2 to 4.8. Epicenter location corrected by 4.2 km (2.6 mi) towards SW.
1 Feb 06:36: Now using data updates from NOA
Update Mon, 1 Feb 2021, 06:06
Significant magnitude 5.2 quake hits 41 km southwest of Mytilene, Greece in the morning
5.2 quake 1 Feb 8:00 am (GMT +2)
5.2 quake 1 Feb 8:00 am (GMT +2)
A shallow magnitude 5.2 earthquake was reported in the morning near Mytilene, Lesbos, North Aegean, Greece.
According to the German Research Centre for Geosciences (GFZ), the quake hit on Monday 1 February 2021 at 8:00 am local time at a shallow depth of 10 km. 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.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 4.7 earthquake.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Agios Fokas (pop. 16) located 8 km from the epicenter.
In Polichnitos (pop. 2,700) located 16 km from the epicenter, Agiasos (pop. 2,300) 26 km away, and Mytilene (pop. 28,300) 41 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Vrontados (pop. 5,300) located 59 km from the epicenter, Urla (pop. 45,200) 88 km away, Menemen (pop. 53,500) 89 km away, Bergama (pop. 57,200) 93 km away, and Burhaniye (pop. 38,100) 96 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.
Download the Volcanoes & Earthquakes app to get one of the fastest seismic alerts online:
Android | IOS

Earthquake data:

Date & time: 1 Feb 2021 06:00:05 UTC -
Local time at epicenter: Monday, 1 Feb 2021 8:00 am (GMT +2)
Magnitude: 4.5
Depth: 15.9 km
Epicenter latitude / longitude: 38.9378°N / 26.0683°E (Aegean Sea, Greece)
Nearest volcano: Kenger (205 km / 127 mi)
Nearby towns and cities:
12 km (7 mi) SW of Agios Fokas (pop: 16) --> See nearby quakes!
28 km (18 mi) SSE of Eresos (pop: 1,040) --> See nearby quakes!
31 km (19 mi) WSW of Agiasos (pop: 2,320) --> See nearby quakes!
39 km (24 mi) SSW of Ayia Paraskevi (pop: 2,200) --> See nearby quakes!
44 km (28 mi) SSW of Petras (pop: 1,300) --> See nearby quakes!
46 km (29 mi) WSW of Mytilene (Mitilini) (pop: 28,300) --> See nearby quakes!
64 km (40 mi) N of Chios (pop: 24,000) --> See nearby quakes!
67 km (41 mi) WNW of Foça (Turkey) (pop: 15,200) --> See nearby quakes!
69 km (43 mi) SW of Ayvalik (Turkey) (pop: 70,000) --> See nearby quakes!
230 km (143 mi) ENE of Athens (pop: 664,000) --> See nearby quakes!
35 km (21 mi) SSW of Lesvos Island (pop: 86,400) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 16.3°C (61 F), humidity: 72%, wind: 11 m/s (22 kts) from S
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
MagnitudeDepthLocationSource
4.516 km46 Km WSW From Mitilini, GreeceNOA
4.816 kmNEAR THE COAST OF WESTERN TURKEYEMSC
5.15 kmNear the Coast of Western TurkeyNIEP
4.710.9 kmAEGEAN SEA, GreeceKOERI-RETMC
4.613 kmAegean Sea, GreeceGFZ
4.810 km25 Km SSW of Polichnítos, GreeceUSGS
4.410 kmPolikhnitos / Ägäis, GreeceZAMG
4.910 kmMediterranean Sea, 837 Km N of Marsa Matruh, GreeceENSN

User reports for this quake (15)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
46 km ENE of epicenter [Map] / Light shaking (MMI IV) / 1-2 s
46 km ENE of epicenter [Map] / Moderate shaking (MMI V)
Chios préfecture (194 km SSW of epicenter) [Map] / Very weak shaking (MMI II) / 1-2 s
104.2 km ESE of epicenter [Map] / Weak shaking (MMI III)
104.7 km ESE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
97.8 km NE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
43.8 km S of epicenter [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 10-15 s (reported through our app)
102.2 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Ayvalik, Turkey / Weak shaking (MMI III) / horizontal (sideways) swinging
Ayvalık / Light shaking (MMI IV) / 5-10 s
Izmir Yali mehallasi / Very weak shaking (MMI II) / very short
İzmir Türkiye / Light shaking (MMI IV)
Gaziemir Izmir / Light shaking (MMI IV) / single vertical bump / 5-10 s
Altinoluk / Moderate shaking (MMI V)
Mytilene / Moderate shaking (MMI V)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.