Quake Info: Moderate Mag. 3.8 Earthquake - Iceland: 4.6 Km NNE of Krýsuvík on Saturday, Sep 9, 2023 03:24 am (Reykjavik Time)

Moderate magnitude 3.8 earthquake at 6 km depth

9 Sep 03:32 UTC: First to report: RaspberryShake after 7 minutes.
9 Sep 03:35: Now using data updates from IMO
9 Sep 04:50: Magnitude recalculated from 3.3 to 3.8. Hypocenter depth recalculated from 5.5 to 6.0 km (from 3.4 to 3.7 mi).

Earthquake details

Date & time	Sep 9, 2023 03:24:38 UTC -
Local time at epicenter	Saturday, Sep 9, 2023 03:24 am (Atlantic/Reykjavik GMT +0)
Status	Confirmed
Magnitude	3.8
Depth	6.0 km
Epicenter latitude / longitude	63.928°N / 22.045°W Hafnarfjarðarkaupstaður, Southern Peninsula, Iceland
Antipode	63.928°S / 157.955°E
Shaking intensity	Weak shaking
Felt	15 reports
Primary data source	IMO (Icelandic Met Office)
Nearest volcano	Krísuvík (3 km / 2 mi)
Weather at epicenter at time of quake	Overcast Clouds 6.7°C (44 F), humidity: 89%, wind: 4 m/s (8 kts) from WNW
Estimated seismic energy released	3.2 x 10¹⁰ joules (8.78 megawatt hours, equivalent to 7.56 tons of TNT) \| about seismic energy

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Distance	Place	Max. shaking intensity(*)	Region	Country
16 km (10 mi) NNE of epicenter	Hafnarfjordur (pop: 26,800)	III Weak	Hafnarfjarðarkaupstaður, Capital Region	Iceland
18 km (11 mi) WNW of epicenter	Vogar (pop: 1,030)	III Weak	Southern Peninsula	Iceland
19 km (12 mi) NNE of epicenter	Garðabaer (pop: 11,400)	III Weak	Garðabær, Capital Region	Iceland
21 km (13 mi) NNE of epicenter	Kopavogur (pop: 31,700)	III Weak	Kopavogsbær, Capital Region	Iceland
22 km (13 mi) WSW of epicenter	Grindavik (pop: 2,860)	III Weak	Grindavikurbær, Southern Peninsula	Iceland
24 km (15 mi) NNE of epicenter	Reykjavik (pop: 118,900)	III Weak	Reykjavíkurborg, Capital Region	Iceland
31 km (20 mi) NNE of epicenter	Mosfellsbaer (pop: 8,650)	III Weak	Capital Region	Iceland
33 km (21 mi) ESE of epicenter	Thorlakshofn (pop: 1,490)	III Weak	Sveitarfélagið Ölfus, South	Iceland

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Data for the same earthquake as reported by different agencies

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Mag	Depth	Time GMT	Epicenter	Agency
3.8	6 km (3.7 mi)	2023-09-9 03:24:38	Iceland: 4.6 Km NNE of Krýsuvík	IMO (Icelandic Met Office)
3.3	5.5 km (3.4 mi)	2023-09-9 03:24:38	Iceland Region 0.4 km (0.3 mi) epicenter difference with IMO	RaspberryShake (RaspberryShake)

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Seismograms

Seismic station: Borgarfjordur, Asbjarnarstadir, Iceland (BORG/II network) | Distance from quake: 97 km / 61 mi | Show on map | Station Info

Seismic station Borgarfjordur, Asbjarnarstadir, Iceland: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User-reports for this quake (15)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Reykjavik Edition hotel (1.3 km NW of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 10-15 s

Reykjavik, Capital Region (24.8 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / single lateral shake / very short

Hafnarfjordur, Capital Region (13.8 km NNE of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s

Garðabaer, Capital Region (19 km NNE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s (reported through our app)

Hjallabeaut (16 km NNE of epicenter) [Map] / Weak shaking (MMI III) / 5-10 s

101 / Light shaking (MMI IV) / rattling, vibrating / 2-5 s

Reykjavik / Light shaking (MMI IV) / rattling, vibrating / 1-2 s

Hafnafjordur / Weak shaking (MMI III) / single lateral shake / 5-10 s

Hafnarfjörður / Weak shaking (MMI III) (reported through our app)

Lying awake / Very weak shaking (MMI II) / rattling, vibrating / very short

Reukjavik / Weak shaking (MMI III) / single lateral shake / very short : Weak Shaking

Downtown reykjavik / Light shaking (MMI IV) / rattling, vibrating / 15-20 s

reykjavik / Weak shaking (MMI III) / rattling, vibrating / 2-5 s

25.3 km N of epicenter [Map] / Light shaking (MMI IV) : Wake up me! (reported through our app)

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Mag. 3.8 earthquake - Iceland: 4.6 Km NNE of Krýsuvík on Saturday, Sep 9, 2023 03:24 am (Reykjavik time) -

Moderate magnitude 3.8 earthquake at 6 km depth

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Mag. 3.8 earthquake - Iceland: 4.6 Km NNE of Krýsuvík on Saturday, Sep 9, 2023 03:24 am (Reykjavik time) - writeAge(1694229878)

Moderate magnitude 3.8 earthquake at 6 km depth

Earthquake details

Nearby places

Compare Quake Data

Data for the same earthquake as reported by different agencies

Seismograms

User-reports for this quake (15)

Earlier earthquakes in the same area

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Mag. 3.8 earthquake - Iceland: 4.6 Km NNE of Krýsuvík on Saturday, Sep 9, 2023 03:24 am (Reykjavik time) -