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Light mag. 4.1 earthquake - Aegean Sea, 55 km west of Rhodos, Dodecanese, South Aegean, Greece, on 6 May 2:40 am (GMT +3)

Light mag. 4.1 earthquake - Aegean Sea, 55 km west of Rhodos, Dodecanese, South Aegean, Greece, on 6 May 2:40 am (GMT +3) Light mag. 4.1 earthquake - Aegean Sea, 55 km west of Rhodos, Dodecanese, South Aegean, Greece, on 6 May 2:40 am (GMT +3)

Light magnitude 4.1 earthquake at 78 km depth

5 May 23:43 UTC: First to report: GFZ after 3 minutes.
5 May 23:45: Now using data updates from NOA
... [show all] ...
6 May 00:14: Hypocenter depth recalculated from 77.7 to 78.4 km (from 48 to 49 mi).

Earthquake details

Date & timeMay 5, 2021 23:40:34 UTC
Local time at epicenter6 May 2:40 am (GMT +3)
Depth78.4 km
Epicenter latitude / longitude36.384°N / 27.6077°E (Aegean Sea, Greece)
Antipode36.384°S / 152.392°W
Shaking intensityWeak shaking
Felt2 reports
Primary data sourceNOA (National Observatory of Athens)
Nearest volcanoNisyros (61 km / 38 mi)
Nearby towns and cities18 km (11 mi) N of Chalki (pop: 313) | Show on map | Quakes nearby
28 km (18 mi) NW of Embonas (pop: 1,060) | Show on map | Quakes nearby
33 km (20 mi) SW of Symi (pop: 2,350) | Show on map | Quakes nearby
40 km (25 mi) S of Datça (Turkey) (pop: 10,100) | Show on map | Quakes nearby
49 km (31 mi) W of Ialysos (Ialisos) (pop: 11,300) | Show on map | Quakes nearby
49 km (31 mi) WNW of Archangelos (Archaggelos) (pop: 5,400) | Show on map | Quakes nearby
55 km (34 mi) W of Rhodos (pop: 56,100) | Show on map | Quakes nearby
63 km (39 mi) SSE of Kos Town (Kos) (pop: 19,200) | Show on map | Quakes nearby
74 km (46 mi) SSE of Bodrum (Turkey) (pop: 39,300) | Show on map | Quakes nearby
387 km (241 mi) ESE of Athens (pop: 664,000) | Show on map | Quakes nearby
133 km (83 mi) SSE of Agathonisi Island (pop: 150) | Show on map | Quakes nearby
164 km (102 mi) E of Anaphi Island (pop: 271) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 19.7°C (67 F), humidity: 73%, wind: 4 m/s (8 kts) from SW
Estimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | about seismic energy
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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.
4.178 km18 Km N From Xalki, GreeceNOA
4.191 kmDodecanese Islands, GreeceGFZ
4.485 km23 Km NW of Émponas, GreeceUSGS
4.410 km542 Km N of Marsa Matruh, GreeceENSN
4.485 kmKhalki / Sporaden, GreeceZAMG


Seismic station: GEOFON Station Tirgusor, Romania (TIRR/GE network) | Distance from quake: 900 km / 559 mi | Show on map | Station Info
Seismic station GEOFON Station Tirgusor, Romania: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Seattle / Weak shaking (MMI III) : I just felt it for some strange reason  
Ψινθο Ροδο (47.2 km E of epicenter) [Map] / Weak shaking (MMI III) / rattling, vibrating / very short (reported through our app)

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