Moderate mag. 5.1 earthquake - 118 Km SSE of Sand Point, Alaska, USA, on Tuesday, 20 Oct 1.32 am (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 16 hours earlier.
Moderate mag. 5.1 earthquake  - 118 Km SSE of Sand Point, Alaska, USA, on Tuesday, 20 Oct 1.32 am (GMT -11)

Moderate magnitude 5.1 earthquake at 18 km depth

20 Oct 12:42 UTC: First to report: GFZ after 10 minutes.
20 Oct 12:45: Now using data updates from USGS
20 Oct 12:47: Magnitude recalculated from 4.8 to 5.2. Hypocenter depth recalculated from 19.9 to 19.2 km (from 12.4 to 11.9 mi). Epicenter location corrected by 5 km (3.1 mi) towards WNW.
20 Oct 22:06: Magnitude recalculated from 5.2 to 5.1. Hypocenter depth recalculated from 19.2 to 18.2 km (from 11.9 to 11.3 mi).
Date & time: 20 Oct 2020 12:32:11 UTC -
Local time at epicenter: Tuesday, 20 Oct 1.32 am (GMT -11)
Magnitude: 5.1
Depth: 18.2 km
Epicenter latitude / longitude: 54.347°N / 159.8039°W (Alaska, United States)
Nearest volcano: Dana (152 km / 94 mi)
Nearby towns and cities:
103 km (64 mi) SSE of Unga
119 km (74 mi) SSE of Sand Point (pop: 1,060)
179 km (111 mi) SSW of Perryville (pop: 113)
180 km (112 mi) ESE of King Cove (pop: 1,010)
209 km (130 mi) ESE of Cold Bay (pop: 123)
442 km (275 mi) E of Unalaska (pop: 4,490)
726 km (451 mi) S of Bethel (pop: 6,450)
1615 km (1004 mi) W of Juneau (pop: 32,800)
Weather at epicenter at time of quake:
Clear Sky 6.6°C (44 F), humidity: 68%, wind: 6 m/s (12 kts) from N
Primary data source: USGS
Estimated released energy: 2.8 x 1012 joules (783 megawatt hours, equivalent to 674 tons of TNT) [learn more]
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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.
M 5.118 km118 Km SSE of Sand Point, Alaska, USAUSGS
M 5.220 kmSouth Of Alaska, USAEMSC
M 5.120 kmSouth of Alaska, USAGeoAu
M 5.513 kmSouth of Alaska, USABMKG
M 5.220 kmSouth of Alaska, USAGFZ

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
999.3 km NNE of epicenter [Map] / not felt (reported through our app)
Volcanoes & Earthquakes - new app for Android

Earlier earthquakes in the same area

Moderate mag. 5.1 earthquake - 118 Km SSE of Sand Point, Alaska, USA, on Tuesday, 20 Oct 1.32 am (GMT -11)
Volcanoes & Earthquakes - new app for Android

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