Mag. 2.8 earthquake - Gulf of Alaska, 73 mi southeast of Sand Point, Alaska, USA, on 28 Oct 6:03 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 9 days earlier.
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Minor magnitude 2.8 earthquake at 21 km depth
29 Oct 05:39 UTC: First to report: USGS after 36 minutes.
29 Oct 05:51: Hypocenter depth recalculated from 40.5 to 20.5 km (from 25 to 12.7 mi). Epicenter location corrected by 5.2 km (3.2 mi) towards WNW.
29 Oct 05:51: Hypocenter depth recalculated from 40.5 to 20.5 km (from 25 to 12.7 mi). Epicenter location corrected by 5.2 km (3.2 mi) towards WNW.
Local time at epicenter: 28 Oct 6:03 pm (GMT -11)
Magnitude: 2.8
Depth: 20.5 km
Epicenter latitude / longitude: 54.3977°N / 159.68°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Stepovak Bay 2 (172 km / 107 mi)
Nearby towns and cities:
117 km (73 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
172 km (107 mi) S of Perryville (pop: 113) --> See nearby quakes!
185 km (115 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
203 km (126 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
214 km (133 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
6157 km (3825 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6157 km (3825 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
44 km (27 mi) S of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
8.1°C (47 F), humidity: 80%, wind: 3 m/s (7 kts) from SW
Primary data source: USGS (United States Geological Survey)
Broken Clouds
8.1°C (47 F), humidity: 80%, wind: 3 m/s (7 kts) from SWEstimated released energy: 1 x 109 joules (278 kilowatt hours, equivalent to 0.239 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 2.8 | 21 km | 116 Km SSE of Sand Point, Alaska, USA | USGS |
| M 2.8 | 20 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.
At magnitude 2.8, this quake might have been felt very close to the epicenter and under calm conditions.
There are no user reports for this quake yet. If you felt it be the first to report it!
Earlier earthquakes in the same area
Mag. 2.8 earthquake - Gulf of Alaska, 73 mi southeast of Sand Point, Alaska, USA, on 28 Oct 6:03 pm (GMT -11)
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