Mag. 4.3 earthquake - North Pacific Ocean, 124 mi south of Sand Point, Alaska, USA, on Friday, 30 Oct 2020 4:19 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 11 days earlier.
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Light magnitude 4.3 earthquake at 10 km depth
31 Oct 03:47 UTC: First to report: USGS after 28 minutes.
Local time at epicenter: Friday, 30 Oct 2020 4:19 pm (GMT -11)
Magnitude: 4.3
Depth: 10.0 km
Epicenter latitude / longitude: 53.5821°N / 159.8889°W
(North Pacific Ocean, Alaska, United States)Nearest volcano: Dutton (234 km / 145 mi)
Nearby towns and cities:
199 km (124 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
228 km (142 mi) SE of King Cove (pop: 1,010) --> See nearby quakes!
256 km (159 mi) SE of Cold Bay (pop: 123) --> See nearby quakes!
263 km (164 mi) S of Perryville (pop: 113) --> See nearby quakes!
269 km (167 mi) ESE of False Pass (pop: 40) --> See nearby quakes!
282 km (175 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
391 km (243 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
438 km (272 mi) E of Unalaska (pop: 4,490) --> See nearby quakes!
6201 km (3853 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6201 km (3853 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
136 km (84 mi) S of Chernabura Island --> See nearby quakes!
Weather at epicenter at time of quake:
Light Rain
8.5°C (47 F), humidity: 93%, wind: 2 m/s (4 kts) from ESE
Primary data source: USGS (United States Geological Survey)
Light Rain
8.5°C (47 F), humidity: 93%, wind: 2 m/s (4 kts) from ESEEstimated released energy: 1.8 x 1011 joules (49.4 megawatt hours, equivalent to 42.5 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 4.3 | 10 km | 199 Km S of Sand Point, Alaska, USA | USGS |
| M 4.3 | 10 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. 4.3 earthquake - North Pacific Ocean, 124 mi south of Sand Point, Alaska, USA, on Friday, 30 Oct 2020 4:19 pm (GMT -11)
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