Moderate mag. 3.8 earthquake - 1.9 Km W of Keilir, Iceland, on Sunday, 28 Feb 2021 4:50 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 4 days earlier.
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Moderate magnitude 3.8 earthquake at 7 km depth
28 Feb 16:57 UTC: First to report: IMO after 6 minutes.
28 Feb 17:05: Magnitude recalculated from 3.6 to 3.8. Hypocenter depth recalculated from 7.2 to 7.0 km (from 4.5 to 4.3 mi).
28 Feb 17:05: Magnitude recalculated from 3.6 to 3.8. Hypocenter depth recalculated from 7.2 to 7.0 km (from 4.5 to 4.3 mi).
Date & time: 28 Feb 2021 16:50:57 UTC -
Local time at epicenter: Sunday, 28 Feb 2021 4:50 pm (GMT +0)
Magnitude: 3.8
Depth: 7.0 km
Epicenter latitude / longitude: 63.939°N / 22.21°W
(Iceland)Nearest volcano: Krísuvík (6 km / 4 mi)
Nearby towns and cities:
10 km (6 mi) ESE of Vogar (pop: 1,030) --> See nearby quakes!
16 km (10 mi) NE of Grindavik (pop: 2,860) --> See nearby quakes!
19 km (12 mi) SW of Hafnarfjordur (pop: 26,800) --> See nearby quakes!
22 km (14 mi) SW of Garðabaer (pop: 11,400) --> See nearby quakes!
24 km (15 mi) SW of Kopavogur (pop: 31,700) --> See nearby quakes!
27 km (17 mi) ESE of Sangerdhi (pop: 1,550) --> See nearby quakes!
27 km (17 mi) SW of Reykjavik (pop: 118,900) --> See nearby quakes!
35 km (22 mi) SW of Mosfellsbaer (pop: 8,650) --> See nearby quakes!
41 km (26 mi) WNW of Thorlakshofn (pop: 1,490) --> See nearby quakes!
43 km (27 mi) S of Akranes (pop: 6,610) --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
2.5°C (36 F), humidity: 93%, wind: 13 m/s (25 kts) from WSW
Primary data source: IMO (Icelandic Met Office)Broken Clouds
2.5°C (36 F), humidity: 93%, wind: 13 m/s (25 kts) from WSWEstimated released energy: 3.2 x 1010 joules (8.78 megawatt hours, equivalent to 7.56 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 |
| 3.8 | 7 km | 1.9 Km W of Keilir, Iceland | IMO |
| 3.6 | 7 km | ICELAND REGION | EMSC |
User reports for this quake (14)
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Hafnarfjordur (18.6 km NE of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / very short (reported through our app)
17.9 km NE of epicenter [Map] / Light shaking (MMI IV) / 1-2 s (reported through our app)
10.1 km WNW of epicenter [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s (reported through our app)
Reykjavik (26.5 km NNE of epicenter) [Map] / Weak shaking (MMI III) / both vertical and horizontal swinging / 2-5 s (reported through our app)
111 (26.1 km NE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / 1-2 s (reported through our app)
15.8 km WNW of epicenter [Map] / Weak shaking (MMI III) / 2-5 s (reported through our app)
24.8 km NE of epicenter [Map] / not felt (reported through our app)
26.1 km NNE of epicenter [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 1-2 s
28 km NE of epicenter [Map] / Weak shaking (MMI III)
18.5 km WNW of epicenter [Map] / Light shaking (MMI IV) (reported through our app)
26.1 km NNE of epicenter [Map] / Light shaking (MMI IV)
18 km WNW of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
Gardur / Very weak shaking (MMI II)
Breiðholt, Reykjavík / Light shaking (MMI IV) / single vertical bump / very short
Earlier earthquakes in the same area
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