Strong mag. 6.1 earthquake - Gulf of Alaska, 24 mi southeast of Wosnesenski Island, Aleutians East, Alaska, USA, on Tuesday, July 28, 2020 at 08:03 (GMT) -

This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East, Alaska, USA, July, 22 2020 06:12 GMT, which had occurred 6 days earlier.
Strong mag. 6.1 earthquake - Gulf of Alaska, 24 mi southeast of Wosnesenski Island, Aleutians East, Alaska, USA, on Tuesday, July 28, 2020 at 08:03 (GMT)

Strong magnitude 6.1 earthquake at 41 km depth

28 Jul 08:10 UTC: First to report: USGS after 6 minutes.
Jul 28 08:19: Magnitude recalculated from 5.9 to 6.1.
Hypocenter depth recalculated from 60.0 to 41.3 km.
Date & time: Jul 28, 2020 08:03:44 UTC -
Magnitude: 6.1
Depth: 41.3 km
Epicenter latitude / longitude: 54.8674°N / 161.1436°W (Gulf of Alaska, Alaska, United States)
Antipode: 54.867°S / 18.856°E
Nearest volcano: Dutton (83 km / 52 mi)
Nearby towns and cities:
66 km (41 mi) SW of Sandpoint (pop: 1,060) --> See nearby quakes!
78 km (48 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
107 km (66 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
126 km (78 mi) S of Nelson Lagoon (pop: 52) --> See nearby quakes!
145 km (90 mi) E of False Pass (pop: 40) --> See nearby quakes!
171 km (107 mi) SW of Perryville (pop: 113) --> See nearby quakes!
215 km (134 mi) SW of Chignik Lake (pop: 73) --> See nearby quakes!
310 km (193 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
366 km (228 mi) ENE of Dutch Harbor (pop: 4,380) --> See nearby quakes!
366 km (228 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) 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.
Mag.DepthLocationSource
6.141 km66 km SW of Sand Point, Alaska (USA)USGS
6.139 kmAlaska Peninsula (USA)GFZ
6.153 kmAlaska Peninsula (USA)EMSC
6.146 kmAlaska Peninsula (USA)GeoAu
6.154 kmAlaska Peninsula (USA)BMKG
6.135 kmAlaska Peninsula, United States [Sea: United States] (USA)INGV

User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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unspecified (171.1 km NE of epicenter) [Map] / Moderate shaking (MMI V) (reported through our app)
Chignik, Lake and Peninsula County, Alaska (234.3 km NE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Là Minerve, Québec / Very weak shaking (MMI II)
Là Minerve, Québec / Very weak shaking (MMI II)
Donnelly, Idaho / Very weak shaking (MMI II) : I barely felt my bed Shake. I thought I was feeling an Idaho quake.  
Snohomish WA / Light shaking (MMI IV)
King Cove Alaska / Light shaking (MMI IV)
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