Moderate mag. 5.2 earthquake - Gulf of Alaska, 102 mi east of Sand Point, Aleutians East County, Alaska, USA, on Sunday, 9 August 2020 at 14:57 (GMT) -

This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 3 weeks earlier.
Moderate mag. 5.2 earthquake  - Gulf of Alaska, 102 mi east of Sand Point, Aleutians East County, Alaska, USA, on Sunday, 9 August 2020 at 14:57 (GMT)

Moderate magnitude 5.2 earthquake at 33 km depth

9 Aug 15:03 UTC: First to report: USGS after 5 minutes.
Aug 9 15:16: Magnitude recalculated from 5.4 to 5.1.
Hypocenter depth recalculated from 32.0 to 25.4 km.
Aug 9 15:28: Magnitude recalculated from 5.1 to 5.2.
Hypocenter depth recalculated from 25.4 to 32.6 km.
Aug 9 15:53: Magnitude recalculated from 5.2 to 5.7.
Hypocenter depth recalculated from 32.6 to 37.4 km.
Aug 9 16:02: Magnitude recalculated from 5.7 to 5.6.
Hypocenter depth recalculated from 37.4 to 0.0 km.
Aug 9 16:36: Magnitude recalculated from 5.6 to 5.7.
Hypocenter depth recalculated from 0.0 to 48.4 km.
Aug 12 15:02: Magnitude recalculated from 5.7 to 5.2.
Hypocenter depth recalculated from 48.4 to 32.6 km.
Date & time: 9 Aug 2020 14:57:53 UTC -
Magnitude: 5.2
Depth: 32.6 km
Epicenter latitude / longitude: 55.0605°N / 157.9545°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Veniaminof (145 km / 90 mi)
Nearby towns and cities:
121 km (75 mi) SE of Perryville (pop: 113) --> See nearby quakes!
140 km (87 mi) SSE of Chignik (pop: 87) --> See nearby quakes!
142 km (88 mi) SSE of Chignik Lake (pop: 73) --> See nearby quakes!
164 km (102 mi) E of Sand Point (pop: 1,060) --> See nearby quakes!
214 km (133 mi) SSE of Port Heiden (pop: 98) --> See nearby quakes!
230 km (143 mi) ESE of Nelson Lagoon (pop: 52) --> See nearby quakes!
278 km (173 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
456 km (284 mi) SW of Kodiak (pop: 6,250) --> See nearby quakes!
6027 km (3745 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6027 km (3745 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
86 km (53 mi) ENE of Simeonof Island --> See nearby quakes!
379 km (236 mi) SW of Kodiak Island (pop: 13,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 5.233 km120 km SE of Perryville, Alaska (USA)USGS
M 5.126 kmAlaska Peninsula (USA)GFZ
M 5.227 kmAlaska Peninsula (USA)EMSC
M 5.221 kmAlaska Peninsula (USA)GeoAu
M 5.669 kmAlaska Peninsula (USA)BMKG

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Chignik Bay / Light shaking (MMI IV)
28752 / Violent shaking (MMI IX)
28752 / Violent shaking (MMI IX)
Chignik Bay / Light shaking (MMI IV)
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Earlier earthquakes in the same area

Moderate mag. 5.2 earthquake - Gulf of Alaska, 102 mi east of Sand Point, Aleutians East County, Alaska, USA, on Sunday, 9 August 2020 at 14:57 (GMT)
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