Moderate mag. 4.1 earthquake - 4.0 Km N of Grindavík, Iceland, on Sunday, 7 Mar 2021 2:50 am (GMT +0) -

This quake was likely an aftershock of the 5.0 quake 3.2 km WSW of Fagradalsfjall, Reykjanes peninsula, Iceland, 7 Mar 2021 2:01 am (GMT +0), which had occurred 49 minutes earlier.
Moderate mag. 4.1 earthquake - 4.0 Km N of Grindavík, Iceland, on Sunday, 7 Mar 2021 2:50 am (GMT +0)

Moderate magnitude 4.1 earthquake at 2 km depth

7 Mar 02:54 UTC: First to report: EMSC after 4 minutes.
7 Mar 02:55: Magnitude recalculated from 3.5 to 3.9. Epicenter location corrected by 1.1 km (0.7 mi) towards S.
... [show all] ...
7 Mar 03:10: Magnitude recalculated from 3.9 to 4.1. Hypocenter depth recalculated from 2.5 to 2.3 km (from 1.6 to 1.4 mi).
Date & time: 7 Mar 2021 02:50:43 UTC -
Local time at epicenter: Sunday, 7 Mar 2021 2:50 am (GMT +0)
Magnitude: 4.1
Depth: 2.3 km
Epicenter latitude / longitude: 63.873°N / 22.425°W (Grindavikurbær, Southern Peninsula, Iceland)
Nearest volcano: Reykjanes (5 km / 3 mi)
Nearby towns and cities:
4 km (2 mi) N of Grindavik (pop: 2,860) --> See nearby quakes!
15 km (10 mi) SSE of Reykjanesbaer (pop: 2,010) --> See nearby quakes!
32 km (20 mi) SW of Hafnarfjordur (Capital Region) (pop: 26,800) --> See nearby quakes!
34 km (21 mi) SW of Garðabaer (Capital Region) (pop: 11,400) --> See nearby quakes!
36 km (23 mi) SW of Kopavogur (Capital Region) (pop: 31,700) --> See nearby quakes!
39 km (24 mi) SW of Reikiavik (Capital Region) (pop: 118,900) --> See nearby quakes!
48 km (30 mi) SW of Mosfellsbaer (Capital Region) (pop: 8,650) --> See nearby quakes!
51 km (32 mi) W of Thorlakshofn (South) (pop: 1,490) --> See nearby quakes!
53 km (33 mi) SSW of Akranes (West) (pop: 6,610) --> See nearby quakes!
62 km (39 mi) WSW of Hveragerdi (South) (pop: 2,290) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds 3.3°C (38 F), humidity: 93%, wind: 1 m/s (2 kts) from W
Primary data source: IMO (Icelandic Met Office)
Estimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 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
4.12.3 km4.0 Km N of Grindavík, IcelandIMO
4.42 kmICELAND REGIONEMSC
4.410 km5 Km NE of Reykjanesbær, IcelandUSGS
4.210 kmIcelandGFZ

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Keflavik (15.4 km NNW of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
12.8 km NNW of epicenter [Map] / Moderate shaking (MMI V) / 2-5 s
35.2 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
Ásbrú (12.8 km NNW of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / 2-5 s (reported through our app)
Ásbrú (12.8 km NNW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s (reported through our app)
38.2 km NE of epicenter [Map] / Weak shaking (MMI III) / 1-2 s
40.6 km NE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
12.8 km NNW of epicenter [Map] / Moderate shaking (MMI V) / 2-5 s
Mossfellsbær / Light shaking (MMI IV) / rattling, vibrating / very short
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