Earthquake Information: low mag. Earthquake 2.5 – Aegean Sea, 12 km northwest of the island of Argentiera, Greece, on Saturday October 2, 2021 at 13:31 (GMT +3)


Low magnitude earthquake 2.5 to 8 km deep

October 2 10:37 UTC: First to report: NOA after 6 minutes.
2 October 10:52: Magnitude recalculated from 4.2 to 2.5. Depth of hypocenter recalculated from 10.0 to 7.5 km (6.2 to 4.7 mi). Epicenter location corrected 211 km (131 mi) towards SSE.

Updated Sat Oct 2, 2021, 10:42 AM

Magnitude 4.2 earthquake strikes near Adamantas, Kykládes, southern Aegean Sea, Greece

Earthquake 4.2 October 2, 1:31 p.m. (GMT +3)

Earthquake 4.2 October 2, 1:31 p.m. (GMT +3)

A magnitude 4.2 earthquake occurred around noon on Saturday October 2, 2021 at 1:31 p.m. local time near Adamantas, Kykládes, South Aegean, Greece, as reported by the Athens National Observatory ( NOA).
According to preliminary data, the earthquake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deep ones because they are closer to the surface. The exact magnitude, epicenter and depth of the quake could be revised in the coming hours or minutes, as seismologists review the data and refine their calculations, or when other agencies release their report.
Based on preliminary seismic data, the quake should not have caused significant damage, but was likely felt by many as a slight vibration in the epicenter area.
Weak tremors could have been felt in Prassa (pop. 13) located 13 km from the epicenter, and Adamantas (pop. 1,300) at 20 km.
Other towns close to the epicenter where the earthquake could have been felt as very weak tremors include Paros (5,300 inhabitants) located 62 km from the epicenter, Ermoupoli (11,400 inhabitants) 72 km away and Ermoupoli ( 11,400 inhabitants) 72 km.

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Earthquake data

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Date and hour : October 2, 2021 10:31:35 UTC –
Local time at epicenter: Saturday October 2, 2021 13:31 (GMT +3)
Magnitude: 2.5
Depth: 7.5 km

Latitude / longitude of epicenter: 35.1137 ° N / 25.2617 ° E↗ (Regional Unit of Heraklion, Crete, Greece)
Antipode: 35.114 ° S / 154.738 ° W↗
Nearest volcano: Milos (25 km / 16 mi)

Nearby towns and villages:
4 km (2 mi) south of Arkalochori (pop: 3,540) -> Observe the earthquakes nearby!
16 km (10 mi) northeast of Pýrgos (pop: 1,130) -> See nearby earthquakes!
16 km (10 mi) southeast of Ano Archanes (pop: 3910) -> See nearby earthquakes!
24 km (15 mi) east of Agia Varvara (Crete) (pop: 2 170) -> See earthquakes nearby!
24 km (15 mi) south of Kato Gouves (pop: 2,150) -> See earthquakes nearby!
26 km (16 mi) to SSE of Heraklion (pop: 137,200) -> Observe the earthquakes nearby!
26 km (16 mi) southwest of Malia (Creta) (pop: 4,340) -> Observe the earthquakes nearby!
27 km (17 mi) to SSE of Néa Alikarnassos (Nea Alikarnassos) (pop: 12,900) -> See nearby earthquakes!
29 km (18 mi) southeast of Gazi (pop: 12,600) -> See nearby earthquakes!
347 km (216 mi) SSE of Athens (Attica) (pop: 664,000) -> See nearby earthquakes!
28 km (17 mi) to SSE of Island of crete (pop: 623,100) -> See nearby earthquakes!

Weather at the epicenter at the time of the earthquake:
Clouds covered 21.2 ° C (70 F), humidity: 67%, wind: 12 m / s (23 kts) from N

Main data source: NOA (National Observatory of Athens)

Estimated energy released: 3.5 x 108 joules (98.6 kilowatt-hours) More info

If you felt this tremor (or if you were near the epicenter), share your experience and submit a short “I felt it” report! Other users would love to hear about it!
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Data for the same earthquake reported by different agencies

Info: The more agencies report the same earthquake and publish similar data, the more confidence you can have in the data. It normally takes up to a few hours for the seismic parameters to be calculated with near optimum accuracy.

Mag. Depth Site Source
2.5 7.5 km Greece: 20 Km NNE From Milos NDA

Previous earthquakes in the same region

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