Moderate mag. 4.0 earthquake - 38 km west of Lamia, Phthiotis, Central Greece, on Saturday, Aug 21, 2021 9:42 pm (GMT +3) -

Moderate mag. 4.0 earthquake - 38 km west of Lamia, Phthiotis, Central Greece, on Saturday, Aug 21, 2021 9:42 pm (GMT +3)

Moderate magnitude 4.0 earthquake at 11 km depth

21 Aug 18:45 UTC: First to report: GFZ after 3 minutes.
21 Aug 18:47: Now using data updates from NOA
21 Aug 18:50: Magnitude recalculated from 4.0 to 4.1. Hypocenter depth recalculated from 5.0 to 7.0 km (from 3.1 to 4.3 mi). Epicenter location corrected by 2.2 km (1.3 mi) towards W.
21 Aug 19:50: Magnitude recalculated from 4.1 to 4.0. Hypocenter depth recalculated from 7.0 to 11.3 km (from 4.3 to 7 mi). Epicenter location corrected by 0.5 km (0.3 mi) towards SW.
Date & time: Aug 21, 2021 18:42:32 UTC -
Local time at epicenter: Saturday, Aug 21, 2021 9:42 pm (GMT +3)
Magnitude: 4
Depth: 11.3 km
Epicenter latitude / longitude: 39.0056°N / 22.0198°E (Phthiotis, Central Greece, Greece)
Antipode: 39.006°S / 157.98°W
Nearest volcano: Sousaki (151 km / 94 mi)
Nearby towns and cities:
2 km (1 mi) E of Rovoliari (pop: 303) --> See nearby quakes!
11 km (7 mi) NW of Makrakomi (pop: 2,250) --> See nearby quakes!
22 km (14 mi) ENE of Karpenisi (pop: 6,890) --> See nearby quakes!
28 km (17 mi) WSW of Domokos (pop: 1,530) --> See nearby quakes!
38 km (23 mi) WNW of Lamia (pop: 52,000) --> See nearby quakes!
41 km (25 mi) SSE of Karditsa (Thessaly) (pop: 32,800) --> See nearby quakes!
45 km (28 mi) SW of Farsala (Lárisa, Thessaly) (pop: 10,400) --> See nearby quakes!
65 km (40 mi) SSE of Trikala (Thessaly) (pop: 61,700) --> See nearby quakes!
68 km (42 mi) NE of Agrinio (West Greece) (pop: 46,900) --> See nearby quakes!
187 km (116 mi) NW of Athens (Attica) (pop: 664,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 17.5°C (63 F), humidity: 71%, wind: 1 m/s (2 kts) from SSW
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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.
4.011 kmGreece: 22 Km ENE From KarpenissiNOA
4.210 kmGreeceGFZ
4.427 km12 Km W of Omvriakí, GreeceUSGS
4.07 kmGreece: Makrokomi / GriechenlandZAMG

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Lamia, Phthiotis, Central Greece (37.9 km ESE of epicenter) [Map] / Weak shaking (MMI III)
Makrakomi, Phthiotis, Central Greece (11 km SE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short
Tirana (320.4 km NW of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
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