Light mag. 4.2 earthquake - Gulf of Alaska, 24 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Tuesday, 19 Jan 2021 5:06 pm (GMT -9) -

Light mag. 4.2 earthquake - Gulf of Alaska, 24 mi south of Shumagin s Island, Aleutians East County, Alaska, USA, on Tuesday, 19 Jan 2021 5:06 pm (GMT -9)

Light magnitude 4.2 earthquake at 39 km depth

20 Jan 02:23 UTC: First to report: USGS after 17 minutes.
Update Wed, 20 Jan 2021, 02:27
Light magnitude 4.2 earthquake 36 miles southeast of Sand Point, Alaska, United States
4.2 quake 19 Jan 5:06 pm (GMT -9)
4.2 quake 19 Jan 5:06 pm (GMT -9)
An earthquake of magnitude 4.2 occurred only 20 minutes ago 36 miles southeast of Sand Point, Alaska, United States, the United States Geological Survey (USGS) reported.
The quake hit at a moderately shallow depth of 24 miles beneath the epicenter near Sand Point, Aleutians East County, Alaska, USA, in the afternoon on Tuesday 19 January 2021 at 5:06 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.2 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Sand Point (pop. 1,100) located 36 miles from the epicenter.
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Earthquake data:

Date & time: 20 Jan 2021 02:06:50 UTC -
Local time at epicenter: Tuesday, 19 Jan 2021 5:06 pm (GMT -9)
Magnitude: 4.2
Depth: 39.3 km
Epicenter latitude / longitude: 54.8351°N / 160.3014°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (107 km / 66 mi)
Nearby towns and cities:
57 km (36 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
131 km (82 mi) E of King Cove (pop: 1,010) --> See nearby quakes!
140 km (87 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
142 km (88 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
159 km (99 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
185 km (115 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
198 km (123 mi) SW of Chignik Lagoon (pop: 78) --> See nearby quakes!
199 km (124 mi) E of False Pass (pop: 40) --> See nearby quakes!
362 km (225 mi) ENE of Akutan (pop: 1,040) --> See nearby quakes!
418 km (260 mi) ENE of Unalaska (pop: 4,490) --> See nearby quakes!
Weather at epicenter at time of quake:
Light Rain 4°C (39 F), humidity: 93%, wind: 2 m/s (4 kts) from SW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 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 4.239 km57 Km SSE of Sand Point, Alaska, USAUSGS
M 3.830 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 since 1900


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