Mag. 3.6 earthquake - Gulf of Alaska, 68 mi southeast of Sand Point, Alaska, USA, on 20 Oct 3:22 pm (GMT -11) -

This quake was likely an aftershock of the 7.6 quake Gulf of Alaska, 60 mi southeast of Sand Point, Aleutians East County, Alaska, USA, 19 Oct 2020 11:54 am (GMT -9), which had occurred 1 day 5 hours earlier.
Mag. 3.6 earthquake  - Gulf of Alaska, 68 mi southeast of Sand Point, Alaska, USA, on 20 Oct 3:22 pm (GMT -11)

Minor magnitude 3.6 earthquake at 19 km depth

21 Oct 02:44 UTC: First to report: USGS after 22 minutes.
Date & time: 21 Oct 2020 02:22:06 UTC -
Local time at epicenter: 20 Oct 3:22 pm (GMT -11)
Magnitude: 3.6
Depth: 19.2 km
Epicenter latitude / longitude: 54.507°N / 159.5631°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Stepovak Bay 2 (159 km / 99 mi)
Nearby towns and cities:
110 km (68 mi) SE of Sand Point (pop: 1,060) --> See nearby quakes!
158 km (98 mi) S of Perryville (pop: 113) --> See nearby quakes!
187 km (116 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
196 km (122 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
201 km (125 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
212 km (132 mi) SSW of Chignik (pop: 87) --> See nearby quakes!
216 km (134 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
277 km (172 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
6145 km (3818 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6145 km (3818 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
31 km (19 mi) S of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 7.5°C (46 F), humidity: 71%, wind: 7 m/s (14 kts) from ENE
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1010 joules (4.4 megawatt hours, equivalent to 3.79 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.
M 3.619 km110 Km SSE of Sand Point, Alaska, USAUSGS
M 3.619 kmSouth Of Alaska, USAEMSC

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 yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area since 1900

Mag. 3.6 earthquake - Gulf of Alaska, 68 mi southeast of Sand Point, Alaska, USA, on 20 Oct 3:22 pm (GMT -11)

Map of earlier quakes

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