Moderate mag. 4.3 earthquake - Ionian Sea, 6.7 km north of Aigio, Achaea, Western Greece, on Friday, 1 Jan 2021 5:55 am (GMT +2) -
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Moderate magnitude 4.3 earthquake at 10 km depth
1 Jan 04:23 UTC: First to report: USGS after 28 minutes.
Update Fri, 1 Jan 2021, 04:27
Light 4.3 quake hits near Aigio, Achaea, West Greece, Greece4.3 quake 1 Jan 5:55 am (GMT +2)
Just 32 minutes ago, a 4.3-magnitude earthquake struck near Aigio, Achaea, West Greece, Greece. The tremor was recorded early morning on Friday 1 January 2021 at 5:55 am local time, at a shallow depth of 10 km below the surface.
The event was filed by the United States Geological Survey (USGS), the first seismological agency to report it.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Longos (pop. 660) located 4 km from the epicenter, Selianitika (pop. 900) 4 km away, Kamarai (pop. 1,200) 6 km away, Aigio (pop. 20,400) 7 km away, Digeliotika (pop. 440) 8 km away, Glyfada (pop. 480) 8 km away, and Témeni (pop. 1,100) 9 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Nafpaktos (pop. 13,400) located 23 km from the epicenter, and Patrai (pop. 168,000) 30 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
The event was filed by the United States Geological Survey (USGS), the first seismological agency to report it.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Longos (pop. 660) located 4 km from the epicenter, Selianitika (pop. 900) 4 km away, Kamarai (pop. 1,200) 6 km away, Aigio (pop. 20,400) 7 km away, Digeliotika (pop. 440) 8 km away, Glyfada (pop. 480) 8 km away, and Témeni (pop. 1,100) 9 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Nafpaktos (pop. 13,400) located 23 km from the epicenter, and Patrai (pop. 168,000) 30 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.
Earthquake data:
Date & time: 1 Jan 2021 03:55:22 UTC -
Local time at epicenter: Friday, 1 Jan 2021 5:55 am (GMT +2)
Magnitude: 4.3
Depth: 10.0 km
Epicenter latitude / longitude: 38.3071°N / 22.0638°E
(Ionian Sea, Greece)Nearest volcano: Sousaki (99 km / 62 mi)
Nearby towns and cities:
4 km (2 mi) ENE of Longos (pop: 659) --> See nearby quakes!
7 km (4 mi) NNW of Aigio (pop: 20,400) --> See nearby quakes!
23 km (14 mi) ESE of Nafpaktos (pop: 13,400) --> See nearby quakes!
30 km (18 mi) ENE of Patras (pop: 168,000) --> See nearby quakes!
34 km (21 mi) WSW of Itea (pop: 4,780) --> See nearby quakes!
37 km (23 mi) SW of Amfissa (pop: 6,850) --> See nearby quakes!
56 km (35 mi) E of Messolonghi (Μεσολόγγι) (pop: 12,800) --> See nearby quakes!
67 km (42 mi) ESE of Agrinio (pop: 46,900) --> See nearby quakes!
84 km (52 mi) NE of Amaliada (pop: 16,800) --> See nearby quakes!
150 km (93 mi) WNW of Athens (pop: 664,000) --> See nearby quakes!
129 km (80 mi) E of Kefalonia Island (pop: 34,500) --> See nearby quakes!
170 km (106 mi) W of Euboea Island (pop: 198,100) --> See nearby quakes!
122 km (76 mi) E of Ithaca Island (pop: 3,210) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky
7.5°C (46 F), humidity: 80%, wind: 3 m/s (5 kts) from W
Primary data source: USGS (United States Geological Survey)Clear Sky
7.5°C (46 F), humidity: 80%, wind: 3 m/s (5 kts) from WEstimated released energy: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 tons of TNT) More info
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.
| Magnitude | Depth | Location | Source |
| M 4.3 | 10 km | 4 Km NNE of Rododáfni, Greece | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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