Mag. 2.9 earthquake - Gulf of Alaska, 74 mi southeast of Sand Point, Alaska, USA, on Thursday, 29 October 2020 at 03:57 (GMT) -
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 2.9 earthquake at 20 km depth
29 Oct 04:26 UTC: First to report: USGS after 29 minutes.
29 Oct 04:30: Magnitude recalculated from 2.6 to 2.9. Hypocenter depth recalculated from 49.6 to 21.2 km (from 31 to 13.2 mi). Epicenter location corrected by 9 km (5.6 mi) towards W.
30 Oct 00:52: Hypocenter depth recalculated from 21.2 to 19.7 km (from 13.2 to 12.2 mi). Epicenter location corrected by 16.9 km (10.5 mi) towards ENE.
29 Oct 04:30: Magnitude recalculated from 2.6 to 2.9. Hypocenter depth recalculated from 49.6 to 21.2 km (from 31 to 13.2 mi). Epicenter location corrected by 9 km (5.6 mi) towards W.
30 Oct 00:52: Hypocenter depth recalculated from 21.2 to 19.7 km (from 13.2 to 12.2 mi). Epicenter location corrected by 16.9 km (10.5 mi) towards ENE.
Magnitude: 2.9
Depth: 19.7 km
Epicenter latitude / longitude: 54.4096°N / 159.5514°W
(Gulf of Alaska, Alaska, United States)Nearest volcano: Dana (169 km / 105 mi)
Nearby towns and cities:
120 km (74 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
169 km (105 mi) S of Perryville (pop: 113) --> See nearby quakes!
192 km (119 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
206 km (128 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
6148 km (3820 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6148 km (3820 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
42 km (26 mi) S of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Broken Clouds
8°C (46 F), humidity: 81%, wind: 2 m/s (4 kts) from WSW
Primary data source: USGS (United States Geological Survey)
Broken Clouds
8°C (46 F), humidity: 81%, wind: 2 m/s (4 kts) from WSWEstimated released energy: 1.4 x 109 joules (392 kilowatt hours, equivalent to 0.338 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 2.9 | 20 km | 119 Km SSE of Sand Point, Alaska, USA | USGS |
| M 2.9 | 21 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 2.9, 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. 2.9 earthquake - Gulf of Alaska, 74 mi southeast of Sand Point, Alaska, USA, on Thursday, 29 October 2020 at 03:57 (GMT)
Click here to search our database for earlier earthquakes in the same area since 1900!
