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Moderate mag. 5.1 earthquake - 139 mi east of Sand Point, Aleutians East, Alaska, USA, on Thursday, Jun 2, 2022 at 1:41 pm (GMT -8) -

Moderate mag. 5.1 earthquake - 139 mi east of Sand Point, Aleutians East, Alaska, USA, on Thursday, Jun 2, 2022 at 1:41 pm (GMT -8) Moderate mag. 5.1 earthquake - 139 mi east of Sand Point, Aleutians East, Alaska, USA, on Thursday, Jun 2, 2022 at 1:41 pm (GMT -8)

Moderate magnitude 5.1 earthquake at 83 km depth

2 Jun 21:47 UTC: First to report: EMSC after 5 minutes.
2 Jun 21:47: Now using data updates from USGS
... [show all] ...
2 Jun 22:16: Magnitude recalculated from 5.2 to 5.1. Hypocenter depth recalculated from 10.2 to 82.8 km (from 6.3 to 51 mi). Epicenter location corrected by 20 km (13 mi) towards SSE.
Update Thu, 2 Jun 2022, 21:51

Significant earthquake of magnitude 5.2 just reported 77 miles southeast of Chignik Lagoon, Alaska, United States

5.2 quake 2 Jun 1:41 pm (GMT -8)
5.2 quake 2 Jun 1:41 pm (GMT -8)
Just 9 minutes ago, a 5.2-magnitude earthquake struck near Chignik Lagoon, Lake and Peninsula, Alaska, USA. The tremor was recorded around noon on Thursday, June 2nd, 2022, at 1:41 pm local time, at a very shallow depth of 4.9 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 the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 5.2 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.2.
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 Chignik Lagoon (pop. 78) located 77 miles from the epicenter.
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 & timeJun 2, 2022 21:41:52 UTC -
Local time at epicenterThursday, Jun 2, 2022 at 1:41 pm (GMT -8)
Depth82.8 km
Epicenter latitude / longitude55.3702°N / 156.9571°W (Gulf of Alaska, Alaska, United States)
Antipode55.37°S / 23.043°E
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoBlack Peak (174 km / 108 mi)
Nearby towns and cities143 km (89 mi) SE of Chignik Lagoon (pop: 78) | Show on map | Quakes nearby
150 km (93 mi) SE of Chignik Lake (pop: 73) | Show on map | Quakes nearby
150 km (93 mi) ESE of Perryville (pop: 113) | Show on map | Quakes nearby
203 km (126 mi) SSE of Port Heiden (pop: 98) | Show on map | Quakes nearby
224 km (139 mi) E of Sand Point (pop: 1,060) | Show on map | Quakes nearby
342 km (212 mi) E of King Cove (pop: 1,010) | Show on map | Quakes nearby
377 km (234 mi) SW of Kodiak Station (pop: 1,300) | Show on map | Quakes nearby
387 km (241 mi) SW of Kodiak (pop: 6,250) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 8.6°C (47 F), humidity: 88%, wind: 4 m/s (7 kts) from E
Estimated seismic energy released2.8 x 1012 joules (783 megawatt hours, equivalent to 674 tons of TNT) | about seismic energy
Show interactive Map
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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.
5.183 km137 Km SE of Chignik, AlaskaUSGS
5.183 kmSouth of AlaskaRaspberryShake
5.510 kmAlaska PeninsulaGFZ
5.226 kmAlaska PeninsulaGeoAu


Seismic station: College Outpost, Alaska, USA (COLA/IU network) | Distance from quake: 1168 km / 726 mi | Show on map | Station Info
Seismic station College Outpost, Alaska, USA: 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

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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