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Strong mag. 5.4 earthquake - 61 mi southeast of King Cove, Aleutians East, Alaska, USA, on Thursday, Feb 3, 2022 at 12:53 pm (GMT -11) -

Strong mag. 5.4 earthquake - 61 mi southeast of King Cove, Aleutians East, Alaska, USA, on Thursday, Feb 3, 2022 at 12:53 pm (GMT -11) Strong mag. 5.4 earthquake - 61 mi southeast of King Cove, Aleutians East, Alaska, USA, on Thursday, Feb 3, 2022 at 12:53 pm (GMT -11)

Strong magnitude 5.4 earthquake at 35 km depth

3 Feb 23:59 UTC: First to report: USGS after 6 minutes.
4 Feb 00:03: Magnitude recalculated from 5.1 to 5.2. Hypocenter depth recalculated from 7.0 to 8.7 km (from 4.3 to 5.4 mi). Epicenter location corrected by 7.1 km (4.4 mi) towards S.
4 Feb 00:07: Magnitude recalculated from 5.2 to 5.4. Hypocenter depth recalculated from 8.7 to 34.9 km (from 5.4 to 22 mi). Epicenter location corrected by 4.5 km (2.8 mi) towards NNW.
4 Feb 00:56: Hypocenter depth recalculated from 34.9 to 34.8 km (from 22 to 22 mi). Epicenter location corrected by 1.6 km (1 mi) towards SW.
Update Fri, 4 Feb 2022, 00:12

Magnitude 5.4 earthquake strikes near King Cove, Aleutians East, Alaska, USA

5.4 quake 3 Feb 12:53 pm (GMT -11)
5.4 quake 3 Feb 12:53 pm (GMT -11)
Just 19 minutes ago, a 5.4-magnitude earthquake struck near King Cove, Aleutians East, Alaska, USA. The tremor was recorded around noon on Thursday, February 3rd, 2022, at 12:53 pm local time, at a moderately shallow depth of 22 miles below the surface.
The event was filed by the United States Geological Survey, the first seismological agency to report it.
A second report was later issued by France's Réseau National de Surveillance Sismique (RéNaSS), which listed it as a magnitude 5.3 earthquake. Other agencies reporting the same quake include the German Research Centre for Geosciences (GFZ) at magnitude 5.5, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 5.4.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in King Cove (pop. 1000) located 61 miles from the epicenter, Cold Bay (pop. 120) 77 miles away, and False Pass (pop. 40) 82 miles away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeFeb 3, 2022 23:53:32 UTC -
Local time at epicenterThursday, Feb 3, 2022 at 12:53 pm (GMT -11)
Depth34.8 km
Epicenter latitude / longitude54.2672°N / 161.6399°W (Gulf of Alaska, Alaska, United States)
Antipode54.267°S / 18.36°E
Shaking intensityModerate shaking near epicenter
Felt1 report
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoDutton (108 km / 67 mi)
Nearby towns and cities98 km (61 mi) SSE of King Cove (pop: 1,010) | Show on map | Quakes nearby
124 km (77 mi) SE of Cold Bay (pop: 123) | Show on map | Quakes nearby
132 km (82 mi) ESE of False Pass (pop: 40) | Show on map | Quakes nearby
140 km (87 mi) SSW of Sand Point (pop: 1,060) | Show on map | Quakes nearby
195 km (121 mi) S of Nelson Lagoon (pop: 52) | Show on map | Quakes nearby
242 km (150 mi) SW of Perryville (pop: 113) | Show on map | Quakes nearby
270 km (167 mi) E of Akutan (pop: 1,040) | Show on map | Quakes nearby
287 km (178 mi) SW of Chignik Lake (pop: 73) | Show on map | Quakes nearby
322 km (200 mi) E of Unalaska (pop: 4,490) | Show on map | Quakes nearby
323 km (200 mi) E of Dutch Harbor (pop: 4,380) | Show on map | Quakes nearby
Weather at epicenter at time of quakeFew Clouds 3.5°C (38 F), humidity: 84%, wind: 9 m/s (17 kts) from WSW
Estimated seismic energy released7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | 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.
5.435 kmAlaska PeninsulaUSGS
5.435 kmAlaska PeninsulaRaspberryShake
5.410 kmAlaska PeninsulaGFZ
5.310 kmNear AnchorageRENASS
5.533 kmAlaska PeninsulaGeoAu


Seismic station: Adak, Aleutian Islands, Alaska (ADK/IU network) | Distance from quake: 1037 km / 644 mi | Show on map | Station Info
Seismic station Adak, Aleutian Islands, Alaska: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Mark as helpful or interesting.
Send your own user report!
Port Heiden, AK / Very weak shaking (MMI II) : Heard and felt a sort of deep rumbling buzzing and felt slight movement for less than a minute, and got a little bit of sensitive vertigo sensation, making me feel way more tired unstable while sitting down than I already was feeling at the time. (reported through our app)  


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Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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