Moderate mag. 5.6 earthquake - Gulf of Alaska, 15 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Wednesday, 29 July 2020 at 09:12 (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 7 days earlier.
Moderate mag. 5.6 earthquake  - Gulf of Alaska, 15 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Wednesday, 29 July 2020 at 09:12 (GMT)

Moderate magnitude 5.6 earthquake at 40 km depth

29 Jul 09:19 UTC: First to report: USGS after 7 minutes.
Jul 29 09:30: Magnitude recalculated from 5.5 to 5.6.
Hypocenter depth recalculated from 60.0 to 40.3 km.
Date & time: 29 Jul 2020 09:12:16 UTC -
Magnitude: 5.6
Depth: 40.3 km
Epicenter latitude / longitude: 54.9728°N / 160.3332°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (90 km / 56 mi)
Nearby towns and cities:
42 km (26 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
127 km (79 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
127 km (79 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
128 km (80 mi) SW of Perryville (pop: 113) --> See nearby quakes!
154 km (96 mi) E of Cold Bay (pop: 123) --> See nearby quakes!
173 km (108 mi) SW of Chignik Lake (pop: 73) --> See nearby quakes!
363 km (226 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
419 km (261 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
6174 km (3836 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6174 km (3836 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
24 km (15 mi) SSW of Shumagin s Island --> See nearby quakes!
351 km (218 mi) ENE of Rootok Island --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 tons of TNT or 0.2 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.
MagnitudeDepthLocationSource
M 5.640 km41 km SSE of Sand Point, Alaska (USA)USGS
M 5.542 kmAlaska Peninsula (USA)GFZ
M 5.652 kmAlaska Peninsula (USA)EMSC
M 5.645 kmAlaska Peninsula (USA)GeoAu
M 5.6108 kmAlaska Peninsula (USA)BMKG

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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947.8 km NE of epicenter [Map] / Very weak shaking (MMI II) (reported through our app)
11563.7 km SW of epicenter [Map] / Light shaking (MMI IV)
Sydney / Violent shaking (MMI IX) : Again
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Earlier earthquakes in the same area since 1900

Moderate mag. 5.6 earthquake - Gulf of Alaska, 15 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Wednesday, 29 July 2020 at 09:12 (GMT)

Map of earlier quakes

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