Weak mag. 2.6 earthquake - 20 km south of Heraklion, Crete, Greece, on Wednesday, Oct 6, 2021 4:25 pm (GMT +3) -

This quake was likely an aftershock of the 5.8 quake 24 km southeast of Heraklion, Crete, Greece, Sep 27, 2021 9:17 am (GMT +3), which had occurred 9 days earlier.
Weak mag. 2.6 earthquake - 20 km south of Heraklion, Crete, Greece, on Wednesday, Oct 6, 2021 4:25 pm (GMT +3)

Weak magnitude 2.6 earthquake at 13 km depth

6 Oct 13:31 UTC: First to report: NOA after 5 minutes.
6 Oct 13:40: Magnitude recalculated from 4.2 to 2.6. Hypocenter depth recalculated from 10.0 to 12.9 km (from 6.2 to 8 mi). Epicenter location corrected by 254 km (158 mi) towards SSE.
Update Wed, 6 Oct 2021, 13:36
Moderate tremor of magnitude 4.2 just reported 90 km southeast of Athens, Greece
4.2 quake 6 Oct 4:25 pm (GMT +3)
4.2 quake 6 Oct 4:25 pm (GMT +3)
A shallow magnitude 4.2 earthquake was reported in the afternoon near Athens, Nomarchía Athínas, Attica, Greece.
According to the National Observatory of Athens (NOA), the quake hit on Wednesday, October 6th, 2021, at 4:25 pm 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.
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 Sykamia (pop. 26) located 20 km from the epicenter.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Glyfada (pop. 87,300) located 78 km from the epicenter, Ilioupoli (pop. 78,200) 83 km away, Agios Dimitrios (pop. 71,300) 85 km away, Kallithea (pop. 100,600) 88 km away, Athens (pop. 664,000) 90 km away, Piraeus (pop. 163,700) 91 km away, Nikaia (pop. 89,400) 93 km away, Peristeri (pop. 140,000) 95 km away, and Acharnes (pop. 99,300) 99 km away.

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Earthquake data

Date & time: Oct 6, 2021 13:25:57 UTC -
Local time at epicenter: Wednesday, Oct 6, 2021 4:25 pm (GMT +3)
Magnitude: 2.6
Depth: 12.9 km
Epicenter latitude / longitude: 35.1604°N / 25.2242°E (Heraklion Regional Unit, Crete, Greece)
Antipode: 35.16°S / 154.776°W
Nearest volcano: Santorini (139 km / 86 mi)
Nearby towns and cities:
4 km (3 mi) WNW of Arkalochori (pop: 3,540) --> See nearby quakes!
10 km (6 mi) SSE of Ano Archanes (pop: 3,910) --> See nearby quakes!
18 km (11 mi) NNE of Pýrgos (pop: 1,130) --> See nearby quakes!
19 km (12 mi) SSW of Gournes (pop: 1,630) --> See nearby quakes!
20 km (12 mi) SSE of Heraklion (pop: 137,200) --> See nearby quakes!
20 km (13 mi) E of Agia Varvara (Crète) (pop: 2,170) --> See nearby quakes!
21 km (13 mi) SSE of Néa Alikarnassos (Nea Alikarnassos) (pop: 12,900) --> See nearby quakes!
23 km (14 mi) SE of Gazi (pop: 12,600) --> See nearby quakes!
24 km (15 mi) SW of Limenas Hersonissou (pop: 2,970) --> See nearby quakes!
341 km (212 mi) SSE of Athens (Attica) (pop: 664,000) --> See nearby quakes!
22 km (13 mi) SSE of Crete Island (pop: 623,100) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 20.5°C (69 F), humidity: 60%, wind: 8 m/s (16 kts) from NNE
Primary data source: NOA (National Observatory of Athens)
Estimated released energy: 5 x 108 joules (139 kilowatt hours, equivalent to 0.12 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
2.613 kmGreece: 12 Km SW From KithnosNOA

User reports for this quake

At magnitude 2.6, this quake might have been felt very close to the epicenter and under calm conditions.
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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