Mag. 4.6 earthquake - Gulf of Alaska, 69 mi southeast of Sand Point, Alaska, USA, on Monday, 19 Oct 2020 3:47 pm (GMT -11) -

Mag. 4.6 earthquake - Gulf of Alaska, 69 mi southeast of Sand Point, Alaska, USA, on Monday, 19 Oct 2020 3:47 pm (GMT -11)

Light magnitude 4.6 earthquake at 23 km depth

20 Oct 02:58 UTC: First to report: USGS after 11 minutes.
20 Oct 03:01: Magnitude recalculated from 4.4 to 4.6. Hypocenter depth recalculated from 16.8 to 23.5 km (from 10.4 to 14.6 mi). Epicenter location corrected by 5.7 km (3.5 mi) towards N.
21 Oct 01:32: Hypocenter depth recalculated from 23.5 to 22.6 km (from 14.6 to 14 mi). Epicenter location corrected by 1.1 km (0.7 mi) towards S.
Date & time: 20 Oct 2020 02:47:45 UTC -
Local time at epicenter: Monday, 19 Oct 2020 3:47 pm (GMT -11)
Magnitude: 4.6
Depth: 22.6 km
Epicenter latitude / longitude: 54.4387°N / 159.7638°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (162 km / 101 mi)
Nearby towns and cities:
110 km (69 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
168 km (105 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
178 km (111 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
196 km (122 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
207 km (129 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
212 km (132 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
224 km (139 mi) SSW of Chignik (pop: 87) --> See nearby quakes!
392 km (243 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
6160 km (3828 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6160 km (3828 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
41 km (25 mi) SSW of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Clear Sky 8.3°C (47 F), humidity: 70%, wind: 6 m/s (11 kts) from NNW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 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 4.623 km110 Km SSE of Sand Point, Alaska, USAUSGS
M 4.910 kmSouth of Alaska, USAGFZ
M 4.630 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. 4.6 earthquake - Gulf of Alaska, 69 mi southeast of Sand Point, Alaska, USA, on Monday, 19 Oct 2020 3:47 pm (GMT -11)

Map of earlier quakes

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