Moderate mag. 4.0 earthquake - 0.6 Km E of Fagradalsfjall, Iceland, on Wednesday, 3 Mar 2021 3:11 pm (GMT +0) -
This quake was likely an aftershock of the 5.7 quake 3.0 Km S of Hella, Iceland, 24 Feb 2021 10:05 am (GMT +0), which had occurred 7 days earlier.
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Moderate magnitude 4.0 earthquake at 7 km depth
3 Mar 15:17 UTC: First to report: IMO after 6 minutes.
3 Mar 15:25: Magnitude recalculated from 3.6 to 4.0.
3 Mar 15:25: Magnitude recalculated from 3.6 to 4.0.
Date & time: 3 Mar 2021 15:11:20 UTC -
Local time at epicenter: Wednesday, 3 Mar 2021 3:11 pm (GMT +0)
Magnitude: 4
Depth: 6.6 km
Epicenter latitude / longitude: 63.901°N / 22.262°W
(Iceland)Nearest volcano: Krísuvík (9 km / 6 mi)
Nearby towns and cities:
11 km (7 mi) SE of Vogar (pop: 1,030) --> See nearby quakes!
11 km (7 mi) NE of Grindavik (pop: 2,860) --> See nearby quakes!
24 km (15 mi) SW of Hafnarfjordur (pop: 26,800) --> See nearby quakes!
27 km (16 mi) SE of Sangerdhi (pop: 1,550) --> See nearby quakes!
27 km (17 mi) SW of Garðabaer (pop: 11,400) --> See nearby quakes!
29 km (18 mi) SW of Kopavogur (pop: 31,700) --> See nearby quakes!
32 km (20 mi) SW of Reykjavik (pop: 118,900) --> See nearby quakes!
40 km (25 mi) SW of Mosfellsbaer (pop: 8,650) --> See nearby quakes!
43 km (27 mi) W of Thorlakshofn (pop: 1,490) --> See nearby quakes!
48 km (30 mi) S of Akranes (pop: 6,610) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds
4.3°C (40 F), humidity: 100%, wind: 12 m/s (23 kts) from SE
Primary data source: IMO (Icelandic Met Office)Overcast Clouds
4.3°C (40 F), humidity: 100%, wind: 12 m/s (23 kts) from SEEstimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 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 |
| 4.0 | 6.6 km | 0.6 Km E of Fagradalsfjall, Iceland | IMO |
| 3.6 | 7 km | ICELAND REGION | EMSC |
User reports for this quake (4)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
31.8 km NE of epicenter [Map] / Weak shaking (MMI III) (reported through our app)
31 km NNE of epicenter [Map] / Weak shaking (MMI III) / both vertical and horizontal swinging / 1-2 s
17 km WNW of epicenter [Map] / Moderate shaking (MMI V) / rattling, vibrating / 1-2 s (reported through our app)
Rvk / Light shaking (MMI IV)
Earlier earthquakes in the same area
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