Light mag. 3.7 earthquake - Aegean Sea, 64 km northeast of Volos, Magnesia, Thessaly, Greece, on Monday, 8 Mar 2021 12:29 am (GMT +2) -

Light mag. 3.7 earthquake - Aegean Sea, 64 km northeast of Volos, Magnesia, Thessaly, Greece, on Monday, 8 Mar 2021 12:29 am (GMT +2)

Light magnitude 3.7 earthquake at 17 km depth

7 Mar 22:32 UTC: First to report: GFZ after 3 minutes.
7 Mar 22:39: Now using data updates from NOA
7 Mar 22:43: Hypocenter depth recalculated from 10.0 to 16.6 km (from 6.2 to 10.3 mi). Epicenter location corrected by 2.3 km (1.5 mi) towards NNE.
Update Sun, 7 Mar 2021, 22:36
Moderate 4.2 quake hits near Nea Ionia, Magnesia, Thessaly, Greece
4.2 quake 8 Mar 12:29 am (GMT +2)
4.2 quake 8 Mar 12:29 am (GMT +2)
Just 7 minutes ago, a 4.2-magnitude earthquake struck near Nea Ionia, Magnesia, Thessaly, Greece. The tremor was recorded after midnight on Monday 8 March 2021 at 12:29 am local time, at a shallow depth of 10 km below the surface.
The event was filed by the German Research Centre for Geosciences (GFZ), the first seismological agency to report it.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Frama (pop. 26) located 13 km from the epicenter, Pefkochori (pop. 1,900) 20 km away, Pefkochori (pop. 1,900) 20 km away, and Neos Marmaras (pop. 3,200) 39 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Nea Moudania (pop. 9,300) located 49 km from the epicenter, Polygyros (pop. 10,000) 61 km away, Nea Kallikrateia (pop. 7,200) 65 km away, Nea Ionia (pop. 32,700) 70 km away, and Volos (pop. 86,000) 70 km away.
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Earthquake data:

Date & time: 7 Mar 2021 22:29:08 UTC -
Local time at epicenter: Monday, 8 Mar 2021 12:29 am (GMT +2)
Magnitude: 3.7
Depth: 16.6 km
Epicenter latitude / longitude: 39.7275°N / 23.5153°E (Aegean Sea, Greece)
Nearest volcano: Sousaki (213 km / 132 mi)
Nearby towns and cities:
23 km (14 mi) SSW of Loutra (pop: 81) --> See nearby quakes!
39 km (24 mi) S of Maltepe (pop: 1,180) --> See nearby quakes!
47 km (29 mi) SSW of Neos Marmaras (pop: 3,160) --> See nearby quakes!
47 km (29 mi) NE of Zagora (pop: 2,390) --> See nearby quakes!
61 km (38 mi) SSE of Nea Moudania (pop: 9,340) --> See nearby quakes!
64 km (40 mi) NE of Nea Ionia (Magnesia) (pop: 32,700) --> See nearby quakes!
64 km (40 mi) NE of Volos (pop: 86,000) --> See nearby quakes!
95 km (59 mi) E of Larisa (pop: 144,700) --> See nearby quakes!
99 km (62 mi) SSE of Peraia (Thessaloniki) (pop: 16,100) --> See nearby quakes!
195 km (121 mi) N of Athens (pop: 664,000) --> See nearby quakes!
143 km (89 mi) NNW of Euboea Island (pop: 198,100) --> See nearby quakes!
75 km (47 mi) SSW of Nisida Ammouliani Island (pop: 547) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 10.2°C (50 F), humidity: 68%, wind: 4 m/s (8 kts) from ESE
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 2.2 x 1010 joules (6.22 megawatt hours, equivalent to 5.35 tons of TNT) More info
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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
3.717 km27 Km SSW From Paliouri Kassandras, GreeceNOA
4.210 kmAegean Sea, GreeceGFZ
3.710 kmAegean Sea, GreeceNIEP
3.717 kmKalandra / Ägäis, GreeceZAMG

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
142.9 km W of epicenter [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
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