Mag. 3.1 earthquake - Gulf of Alaska, 60 mi southeast of Sand Point, Alaska, USA, on 28 Oct 11:14 am (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 9 days earlier.
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Minor magnitude 3.1 earthquake at 23 km depth
28 Oct 22:54 UTC: First to report: USGS after 40 minutes.
Local time at epicenter: 28 Oct 11:14 am (GMT -11)
Magnitude: 3.1
Depth: 23.1 km
Epicenter latitude / longitude: 54.5676°N / 159.7755°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dana (150 km / 93 mi)
Nearby towns and cities:
97 km (60 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
155 km (96 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
172 km (107 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
183 km (114 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
198 km (123 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
201 km (125 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
209 km (130 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
274 km (170 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
6156 km (3825 mi) NW of Washington (District of Columbia) (pop: 601,700) --> See nearby quakes!
6156 km (3825 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
28 km (18 mi) SSW of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Light Rain
7.6°C (46 F), humidity: 81%, wind: 2 m/s (3 kts) from S
Primary data source: USGS (United States Geological Survey)
Light Rain
7.6°C (46 F), humidity: 81%, wind: 2 m/s (3 kts) from SEstimated released energy: 2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) More info
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.
| Magnitude | Depth | Location | Source |
| M 3.1 | 23 km | 97 Km SSE of Sand Point, Alaska, USA | USGS |
| M 3.1 | 23 km | South Of Alaska, USA | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Earlier earthquakes in the same area
Mag. 3.1 earthquake - Gulf of Alaska, 60 mi southeast of Sand Point, Alaska, USA, on 28 Oct 11:14 am (GMT -11)
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