Light mag. 3.5 earthquake - Gulf of Alaska, 70 mi southeast of Sand Point, Aleutians East County, Alaska, USA, on Monday, 15 Feb 2021 4:44 pm (GMT -11) -

Light mag. 3.5 earthquake - Gulf of Alaska, 70 mi southeast of Sand Point, Aleutians East County, Alaska, USA, on Monday, 15 Feb 2021 4:44 pm (GMT -11)

Light magnitude 3.5 earthquake at 25 km depth

16 Feb 04:53 UTC: First to report: EMSC after 1 hour and 9 minutes.
16 Feb 04:54: Now using data updates from USGS
16 Feb 22:08: Magnitude recalculated from 3.6 to 3.5. Hypocenter depth recalculated from 12.9 to 25.1 km (from 8 to 15.6 mi). Epicenter location corrected by 26 km (16 mi) towards N.
Date & time: 16 Feb 2021 03:44:29 UTC -
Local time at epicenter: Monday, 15 Feb 2021 4:44 pm (GMT -11)
Magnitude: 3.5
Depth: 25.1 km
Epicenter latitude / longitude: 54.422°N / 159.7295°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Dana (185 km / 115 mi)
Nearby towns and cities:
113 km (70 mi) SSE of Sand Point (pop: 1,060) --> See nearby quakes!
170 km (105 mi) SSW of Perryville (pop: 113) --> See nearby quakes!
181 km (112 mi) ESE of King Cove (pop: 1,010) --> See nearby quakes!
199 km (124 mi) SSE of Nelson Lagoon (pop: 52) --> See nearby quakes!
210 km (130 mi) ESE of Cold Bay (pop: 123) --> See nearby quakes!
213 km (132 mi) SSW of Chignik Lake (pop: 73) --> See nearby quakes!
223 km (139 mi) SSW of Chignik Lagoon (pop: 78) --> See nearby quakes!
242 km (150 mi) E of False Pass (pop: 40) --> See nearby quakes!
289 km (179 mi) SSW of Port Heiden (pop: 98) --> See nearby quakes!
394 km (245 mi) E of Akutan (pop: 1,040) --> See nearby quakes!
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
3.525 km113 Km SSE of Sand Point, Alaska, USAUSGS
3.613 kmSOUTH OF ALASKA, USAEMSC

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Vancouver / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
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Earlier earthquakes in the same area

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