Mag. 4.6 earthquake - 67 mi southeast of Sand Point, Aleutians East County, Alaska, on Thursday, 22 Oct 2020 11:58 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 4 days earlier.
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Light magnitude 4.6 earthquake at 26 km depth
23 Oct 11:09 UTC: First to report: GFZ after 12 minutes.
23 Oct 11:16: Now using data updates from USGS
29 Oct 12:03: Now using data updates from USGS
23 Oct 11:16: Now using data updates from USGS
29 Oct 12:03: Now using data updates from USGS
Local time at epicenter: Thursday, 22 Oct 2020 11:58 pm (GMT -11)
Magnitude: 4.6
Depth: 26.2 km
Epicenter latitude / longitude: 54.5281°N / 159.5742°W
(Gulf of Alaska, United States)Nearest volcano: Stepovak Bay 2 (117 km / 73 mi)
Nearby towns and cities:
108 km (67 mi) SE of Sand Point (pop: 1,060) --> See nearby quakes!
156 km (97 mi) S of Perryville (pop: 113) --> See nearby quakes!
186 km (115 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
194 km (120 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
199 km (124 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
210 km (130 mi) SSW of Chignik (pop: 87) --> See nearby quakes!
214 km (133 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
405 km (251 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
6145 km (3818 mi) NW of Washington DC (pop: 601,700) --> See nearby quakes!
6145 km (3818 mi) NW of Washington DC (pop: 601,700) --> See nearby quakes!
29 km (18 mi) S of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Few Clouds
8.8°C (48 F), humidity: 76%, wind: 7 m/s (13 kts) from SSW
Primary data source: USGS (United States Geological Survey)
Few Clouds
8.8°C (48 F), humidity: 76%, wind: 7 m/s (13 kts) from SSWEstimated released energy: 5 x 1011 joules (139 megawatt hours, equivalent to 120 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 4.6 | 26 km | 107 Km SSE of Sand Point, Alaska, USA | USGS |
| M 4.6 | 8 km | South Of Alaska, USA | EMSC |
| M 4.8 | 26 km | South of Alaska, USA | GFZ |
| M 5.0 | 24 km | South of Alaska, USA | GeoAu |
| M 4.6 | 26 km | 107 Km SSE of Sand Point, Alaska, USA | USGS |
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!
Earlier earthquakes in the same area
Mag. 4.6 earthquake - 67 mi southeast of Sand Point, Aleutians East County, Alaska, on Thursday, 22 Oct 2020 11:58 pm (GMT -11)
Click here to search our database for earlier earthquakes in the same area since 1900!
