Moderate mag. 4.6 earthquake - 3.9 Km S of Fagradalsfjall, Iceland, on Sunday, 14 Mar 2021 12:34 pm (GMT +0) -

This quake was likely an aftershock of the 5.1 quake 10.4 Km ESE of Grindavík, Iceland, 10 Mar 2021 3:14 am (GMT +0), which had occurred 4 days earlier.
Moderate mag. 4.6 earthquake - 3.9 Km S of Fagradalsfjall, Iceland, on Sunday, 14 Mar 2021 12:34 pm (GMT +0)

Moderate magnitude 4.6 earthquake at 5 km depth

14 Mar 12:36 UTC: First to report: EMSC after 2 minutes.
14 Mar 12:38: Magnitude recalculated from 4.1 to 4.0. Hypocenter depth recalculated from 5.0 to 6.0 km (from 3.1 to 3.7 mi).
... [show all] ...
14 Mar 15:14: Magnitude recalculated from 4.9 to 4.6.
Date & time: 14 Mar 2021 12:34:36 UTC -
Local time at epicenter: Sunday, 14 Mar 2021 12:34 pm (GMT +0)
Magnitude: 4.6
Depth: 4.6 km
Epicenter latitude / longitude: 63.867°N / 22.283°W (Grindavikurbær, Southern Peninsula, Iceland)
Nearest volcano: Fagradalsfjall (4 km / 2 mi)
Nearby towns and cities:
8 km (5 mi) ENE of Grindavik (pop: 2,860) --> See nearby quakes!
20 km (12 mi) SE of Reykjanesbaer (pop: 2,010) --> See nearby quakes!
28 km (17 mi) SW of Hafnarfjordur (Capital Region) (pop: 26,800) --> See nearby quakes!
30 km (19 mi) SW of Garðabaer (Capital Region) (pop: 11,400) --> See nearby quakes!
33 km (20 mi) SSW of Kopavogur (Capital Region) (pop: 31,700) --> See nearby quakes!
35 km (22 mi) SSW of Reikiavik (Capital Region) (pop: 118,900) --> See nearby quakes!
44 km (27 mi) SW of Mosfellsbaer (Capital Region) (pop: 8,650) --> See nearby quakes!
44 km (27 mi) W of Thorlakshofn (South) (pop: 1,490) --> See nearby quakes!
52 km (32 mi) S of Akranes (West) (pop: 6,610) --> See nearby quakes!
56 km (35 mi) WSW of Hveragerdi (South) (pop: 2,290) --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 1°C (34 F), humidity: 55%, wind: 3 m/s (5 kts) from SE
Primary data source: IMO (Icelandic Met Office)
Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 tons of TNT) More info
Show interactive Map
[smaller] [bigger]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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
4.64.6 km3.9 Km S of Fagradalsfjall, IcelandIMO
4.52 kmICELANDEMSC
4.510 km8 Km ESE of Hafnarfjörður, IcelandUSGS
4.310 kmIcelandGFZ

User reports for this quake (46)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Contribute:
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Keflavik / Light shaking (MMI IV) : Short and very fast shake | 2 users found this interesting.  
Njardvik (15.5 km NW of epicenter) [Map] / Light shaking (MMI IV) : Doors shaking walls rumbling | One user found this interesting. (reported through our app)  
35.1 km NNE of epicenter [Map] / Weak shaking (MMI III) / single lateral shake / very short
35.1 km NNE of epicenter [Map] / Weak shaking (MMI III) / single lateral shake / very short
76.6 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
35.1 km NNE of epicenter [Map] / Weak shaking (MMI III) / single lateral shake / very short
36 km NNE of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 2-5 s
Ásbrú, Reykjanes Peninsula (17.7 km NW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 5-10 s (reported through our app)
44.6 km NE of epicenter [Map] / not felt (reported through our app)
22 km NW of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
20.4 km NW of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
35.3 km NNE of epicenter [Map] / Strong shaking (MMI VI) (reported through our app)
7.7 km WSW of epicenter [Map] / Very strong shaking (MMI VII) (reported through our app)
Ásbrú / Strong shaking (MMI VI) / 2-5 s
Ásbrú / Strong shaking (MMI VI) / 2-5 s
Njardvik / Light shaking (MMI IV) / very short
77.2 km NNE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
35 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
34.3 km NNE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
19.5 km NW of epicenter [Map] / Moderate shaking (MMI V) / 1-2 s (reported through our app)
19.5 km NW of epicenter [Map] / Moderate shaking (MMI V) / complex motion difficult to describe / 5-10 s (reported through our app)
Reykjavik / Moderate shaking (MMI V)
26.4 km NE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Ásbrú / Strong shaking (MMI VI) / 2-5 s
reykjavik / Light shaking (MMI IV) / single lateral shake / 2-5 s
27.7 km NE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
Reykjavík (36.4 km NNE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Reykjavik 109 Engjasel (34 km NE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
Reykjavík 105 (35.9 km NNE of epicenter) [Map] / Light shaking (MMI IV) / 1-2 s (reported through our app)
29.2 km NW of epicenter [Map] / Weak shaking (MMI III) / rattling, vibrating / very short (reported through our app)
34.8 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
34.8 km NNE of epicenter [Map] / Very weak shaking (MMI II) / very short (reported through our app)
34.1 km NE of epicenter [Map] / Moderate shaking (MMI V) (reported through our app)
Innri Njarðívik / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s
Reykjavik / Light shaking (MMI IV) / rattling, vibrating / 1-2 s
19.7 km NW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
29.8 km NW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
34.7 km NNE of epicenter [Map] / Light shaking (MMI IV) / 2-5 s (reported through our app)
15.9 km NW of epicenter [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 2-5 s (reported through our app)
Reykjavík 109 (33.2 km NE of epicenter) [Map] / Weak shaking (MMI III) (reported through our app)
35.1 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
34.9 km NNE of epicenter [Map] / Strong shaking (MMI VI)
19.6 km NW of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
19.6 km NW of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating / 1-2 s (reported through our app)
Ásbrú, Reykjanes Peninsula (17.7 km NW of epicenter) [Map] / Moderate shaking (MMI V) / rattling, vibrating / 2-5 s (reported through our app)
18.5 km NW of epicenter [Map] / Strong shaking (MMI VI) / horizontal (sideways) swinging / 10-15 s (reported through our app)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Additional seismic data sources
  • Improved content in English
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.