Moderate mag. 5.1 earthquake - 79 mi southeast of Sand Point, Alaska, USA, on 20 Oct 2:17 pm (GMT -11) -

This quake was likely an aftershock of the 7.6 quake 97 Km SE of Sand Point, Alaska, USA, 19 Oct 11.54 am (GMT -9), which had occurred 1 day 4 hours earlier.
Moderate mag. 5.1 earthquake  - 79 mi southeast of Sand Point, Alaska, USA, on 20 Oct 2:17 pm (GMT -11)

Moderate magnitude 5.1 earthquake at 20 km depth

21 Oct 01:28 UTC: First to report: GFZ after 11 minutes.
21 Oct 01:33: Now using data updates from USGS
Date & time: 21 Oct 2020 01:17:54 UTC -
Local time at epicenter: 20 Oct 2:17 pm (GMT -11)
Magnitude: 5.1
Depth: 19.6 km
Epicenter latitude / longitude: 54.3055°N / 159.6246°W (United States)
Nearest volcano: Dana (184 km / 114 mi)
Nearby towns and cities:
128 km (79 mi) SSE of Sand Point (pop: 1,060)
181 km (113 mi) S of Perryville (pop: 113)
193 km (120 mi) ESE of King Cove (pop: 1,010)
222 km (138 mi) ESE of Cold Bay (pop: 123)
400 km (249 mi) E of Akutan (pop: 1,040)
453 km (282 mi) E of Unalaska (pop: 4,490)
843 km (524 mi) SW of Kalifornsky (pop: 7,850)
855 km (531 mi) SW of Kenai (pop: 7,660)
Weather at epicenter at time of quake:
Overcast Clouds 7.7°C (46 F), humidity: 69%, wind: 8 m/s (15 kts) from E
Primary data source: USGS
Estimated released energy: 2.8 x 1012 joules (783 megawatt hours, equivalent to 674 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 5.120 km127 Km SSE of Sand Point, Alaska, USAUSGS
M 5.110 kmSouth Of Alaska, USAEMSC
M 5.114 kmSouth of Alaska, USAGeoAu
M 4.810 kmSouth of Alaska, USAGFZ

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Anchorage (952.3 km NNE of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 5-10 s : Felt like a train going by. | One user found this interesting. (reported through our app)
997 km NNE of epicenter [Map] / not felt (reported through our app)
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Earlier earthquakes in the same area

Moderate mag. 5.1 earthquake - 79 mi southeast of Sand Point, Alaska, USA, on 20 Oct 2:17 pm (GMT -11)
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