2 spots left on Iceland Geo Tour 16-30 July 2022

Moderate mag. 3.8 earthquake - 3.3 Km S of Fagradalsfjall, Iceland, on Friday, Mar 12, 2021 at 6:36 am (GMT +0) -

This quake was likely an aftershock of the 5.1 quake 10.4 Km ESE of Grindavík, Iceland, Mar 10, 2021 3:14 am (GMT +0), which had occurred 2 days earlier.
Moderate mag. 3.8 earthquake - 3.3 Km S of Fagradalsfjall, Iceland, on Friday, Mar 12, 2021 at 6:36 am (GMT +0) Moderate mag. 3.8 earthquake - 3.3 Km S of Fagradalsfjall, Iceland, on Friday, Mar 12, 2021 at 6:36 am (GMT +0)

Moderate magnitude 3.8 earthquake at 3 km depth

12 Mar 06:40 UTC: First to report: EMSC after 4 minutes.
12 Mar 06:46: Now using data updates from IMO
... [show all] ...
12 Mar 17:30: Hypocenter depth recalculated from 3.0 to 3.4 km (from 1.9 to 2.1 mi).

Earthquake details

Date & timeMar 12, 2021 06:36:30 UTC -
Local time at epicenterFriday, Mar 12, 2021 at 6:36 am (GMT +0)
StatusConfirmed
Magnitude3.8
Depth3.4 km
Epicenter latitude / longitude63.873°N / 22.275°W (Grindavikurbær, Southern Peninsula, Iceland)
Antipode63.873°S / 157.725°E
Shaking intensityWeak shaking
Felt5 reports
Primary data sourceIMO (Icelandic Met Office)
Nearest volcanoFagradalsfjall (3 km / 2 mi)
Nearby towns and cities9 km (6 mi) ENE of Grindavik (pop: 2,860) | Show on map | Quakes nearby
20 km (12 mi) SE of Reykjanesbær (Penisola meridionale) (pop: 2,010) | Show on map | Quakes nearby
27 km (17 mi) SW of Hafnarfjordur (Capital Region) (pop: 26,800) | Show on map | Quakes nearby
30 km (18 mi) SW of Garðabaer (Capital Region) (pop: 11,400) | Show on map | Quakes nearby
32 km (20 mi) SSW of Kopavogur (Capital Region) (pop: 31,700) | Show on map | Quakes nearby
35 km (21 mi) SSW of Reykjavik (Capital Region) (pop: 118,900) | Show on map | Quakes nearby
43 km (27 mi) SW of Mosfellsbaer (Capital Region) (pop: 8,650) | Show on map | Quakes nearby
44 km (27 mi) W of Thorlakshofn (South) (pop: 1,490) | Show on map | Quakes nearby
51 km (32 mi) S of Akranes (West) (pop: 6,610) | Show on map | Quakes nearby
55 km (34 mi) WSW of Hveragerdi (South) (pop: 2,290) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 1.5°C (35 F), humidity: 80%, wind: 11 m/s (22 kts) from NNE
Estimated seismic energy released3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 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.
Mag.DepthLocationSource
3.83.4 km3.3 Km S of Fagradalsfjall, IcelandIMO
3.71 kmICELAND REGIONEMSC

User reports for this quake (5)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Hafnarfjordur (25.7 km NE of epicenter) [Map] / Light shaking (MMI IV) / single lateral shake / very short (reported through our app)
33.2 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
reykjavik / Weak shaking (MMI III) / single lateral shake / 2-5 s
28.9 km NW of epicenter [Map] / Very weak shaking (MMI II) / single lateral shake / very short (reported through our app)
34.6 km NNE of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
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