Moderate mag. 4.3 earthquake - 2.6 Km S of Hella, Iceland, on Wednesday, 24 Feb 2021 10:05 am (GMT +0) -

This quake was likely a foreshock of the 5.0 quake 3.0 Km NW of Krýsuvík, Iceland, 24 Feb 2021 10:30 am (GMT +0), which followed after 25 minutes.
Moderate mag. 4.3 earthquake - 2.6 Km S of Hella, Iceland, on Wednesday, 24 Feb 2021 10:05 am (GMT +0)

Moderate magnitude 4.3 earthquake at 7 km depth

24 Feb 10:21 UTC: First to report: IMO after 15 minutes.
24 Feb 10:21: Magnitude recalculated from 4.7 to 4.1. Epicenter location corrected by 89 km (56 mi) towards E.
24 Feb 10:33: Magnitude recalculated from 4.1 to 4.3. Hypocenter depth recalculated from 1.1 to 7.2 km (from 0.7 to 4.5 mi). Epicenter location corrected by 90 km (56 mi) towards W.
24 Feb 13:09: Hypocenter depth recalculated from 7.2 to 7.1 km (from 4.5 to 4.4 mi).
Update Wed, 24 Feb 2021, 10:36
Moderate earthquake of magnitude 4.3 reported 30 km southwest of Reykjavik, Iceland
4.3 quake 2.6 Km S of Hella, Iceland, 24 Feb 2021 10:05 am (GMT +0)
4.3 quake 2.6 Km S of Hella, Iceland, 24 Feb 2021 10:05 am (GMT +0)
An earthquake of magnitude 4.3 occurred in the morning on Wednesday 24 February 2021 at 10:05 am local time near Reykjavik, Reykjavíkurborg, Capital Region, Iceland, as reported by the Icelandic Met Office (IMO).
According to preliminary data, the quake was located at a very shallow depth of 7.2 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. Magnitude and other quake parameters can still change in the coming hours as the agency continues to process seismic data.
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 Vogar (pop. 1000) located 11 km from the epicenter, and Grindavik (pop. 2,900) 13 km away, the quake should have been felt as light shaking.
Weak shaking might have been felt in Hafnarfjordur (pop. 26,800) located 22 km from the epicenter, Hafnarfjörður (pop. 26,800) 22 km away, Garðabaer (pop. 11,400) 25 km away, Garðabær (pop. 11,400) 25 km away, Kopavogur (pop. 31,700) 27 km away, Reykjavik (pop. 118,900) 30 km away, Mosfellsbaer (pop. 8,700) 38 km away, and Mosfellsbær (pop. 8,700) 38 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.
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Earthquake data:

Date & time: 24 Feb 2021 10:05:40 UTC -
Local time at epicenter: Wednesday, 24 Feb 2021 10:05 am (GMT +0)
Magnitude: 4.3
Depth: 7.1 km
Epicenter latitude / longitude: 63.91°N / 22.226°W (Iceland)
Nearest volcano: Grímsnes (33 km / 21 mi)
Nearby towns and cities:
11 km (7 mi) SE of Vogar (pop: 1,030) --> See nearby quakes!
13 km (8 mi) NE of Grindavik (pop: 2,860) --> See nearby quakes!
22 km (14 mi) SW of Hafnarfjordur (pop: 26,800) --> See nearby quakes!
25 km (15 mi) SW of Garðabaer (pop: 11,400) --> See nearby quakes!
27 km (17 mi) SW of Kopavogur (pop: 31,700) --> See nearby quakes!
27 km (17 mi) ESE of Sangerdhi (pop: 1,550) --> See nearby quakes!
30 km (19 mi) SSW of Reykjavik (pop: 118,900) --> See nearby quakes!
38 km (24 mi) SW of Mosfellsbaer (pop: 8,650) --> See nearby quakes!
42 km (26 mi) W of Thorlakshofn (pop: 1,490) --> See nearby quakes!
46 km (29 mi) S of Akranes (pop: 6,610) --> See nearby quakes!
Weather at epicenter at time of quake:
Scattered Clouds 2.3°C (36 F), humidity: 93%, wind: 4 m/s (8 kts) from NE
Primary data source: IMO (Icelandic Met Office)
Estimated released energy: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 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.
4.37.1 km2.6 Km S of Hella, IcelandIMO
4.510 km7 Km NNW of Seltjarnarnes, IcelandUSGS

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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28.2 km NNE of epicenter [Map] / Moderate shaking (MMI V) / horizontal (sideways) swinging / 1-2 s : Felt like a fore-shock and definitely felt stronger than 4.3. I’ve been in 4.4-4.5 quakes before and this was a lot stronger than that. Maybe due to proximity?  
20.8 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Reykjavik (29.2 km NE of epicenter) [Map] / Light shaking (MMI IV) / very short
25 km NE of epicenter [Map] / Moderate shaking (MMI V) / 5-10 s
18.4 km WNW of epicenter [Map] / Strong shaking (MMI VI)
29.8 km NNE of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Njardvik / Strong shaking (MMI VI)
Njarðvik / Light shaking (MMI IV) / 5-10 s
Vesturbaer / Moderate shaking (MMI V)
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