Mag. 3.5 earthquake - 36 mi east of Chignik Lake, Alaska, USA, on 4 Oct 2:39 am (GMT -8) -

This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 11 weeks earlier.
Mag. 3.5 earthquake  - 36 mi east of Chignik Lake, Alaska, USA, on 4 Oct 2:39 am (GMT -8)

Minor magnitude 3.5 earthquake at 67 km depth

4 Oct 10:43 UTC: First to report: USGS after 4 minutes.
4 Oct 10:44: Hypocenter depth recalculated from 62.1 to 66.5 km (from 39 to 41 mi).
4 Oct 10:47: Hypocenter depth recalculated from 66.5 to 66.7 km (from 41 to 41 mi).
4 Oct 10:54: Hypocenter depth recalculated from 66.7 to 66.8 km (from 41 to 42 mi).
Date & time: 4 Oct 2020 10:39:59 UTC -
Local time at epicenter: 4 Oct 2:39 am (GMT -8)
Magnitude: 3.5
Depth: 66.8 km
Epicenter latitude / longitude: 56.33°N / 157.8361°W (Lake and Peninsula County, Alaska, United States)
Nearest volcano: Black Peak (63 km / 39 mi)
Nearby towns and cities:
43 km (27 mi) E of Chignik Lagoon (pop: 78) --> See nearby quakes!
58 km (36 mi) E of Chignik Lake (pop: 73) --> See nearby quakes!
84 km (52 mi) SE of Port Heiden (pop: 98) --> See nearby quakes!
94 km (58 mi) ENE of Perryville (pop: 113) --> See nearby quakes!
200 km (124 mi) NE of Sand Point (pop: 1,060) --> See nearby quakes!
314 km (195 mi) ENE of King Cove (pop: 1,010) --> See nearby quakes!
366 km (228 mi) WSW of Kodiak (pop: 6,250) --> See nearby quakes!
1416 km (880 mi) W of Juneau (pop: 32,800) --> See nearby quakes!
5976 km (3714 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
5976 km (3714 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Light Rain 7°C (45 F), humidity: 93%, wind: 2 m/s (3 kts) from S
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1010 joules (3.12 megawatt hours, equivalent to 2.68 tons of TNT) More info
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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.
MagnitudeDepthLocationSource
M 3.567 km35 Km E of Chignik, Alaska, USAUSGS
M 4.067 kmAlaska Peninsula, USAEMSC

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!
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Earlier earthquakes in the same area

Mag. 3.5 earthquake - 36 mi east of Chignik Lake, Alaska, USA, on 4 Oct 2:39 am (GMT -8)
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