Weak mag. 3.5 earthquake - Gulf of Alaska, 127 mi east of Sand Point, Aleutians East County, Alaska, USA, on Tuesday, 9 Feb 2021 11:00 pm (GMT -9) -

Weak mag. 3.5 earthquake - Gulf of Alaska, 127 mi east of Sand Point, Aleutians East County, Alaska, USA, on Tuesday, 9 Feb 2021 11:00 pm (GMT -9)

Weak magnitude 3.5 earthquake at 34 km depth

10 Feb 08:04 UTC: First to report: USGS after 4 minutes.
10 Feb 08:07: Magnitude recalculated from 3.5 to 3.6. Hypocenter depth recalculated from 40.3 to 14.7 km (from 25 to 9.1 mi).
... [show all] ...
10 Feb 19:50: Magnitude recalculated from 3.6 to 3.5. Hypocenter depth recalculated from 50.7 to 33.7 km (from 32 to 21 mi). Epicenter location corrected by 5.2 km (3.2 mi) towards WNW.
Update Wed, 10 Feb 2021, 08:09
Small magnitude 3.6 earthquake 53 miles southeast of Chignik Lagoon, Alaska, United States
3.6 quake 9 Feb 11:00 pm (GMT -9)
3.6 quake 9 Feb 11:00 pm (GMT -9)
An earthquake of magnitude 3.6 occurred only 9 minutes ago 53 miles southeast of Chignik Lagoon, Alaska, United States, the United States Geological Survey reported.
The quake hit at a moderately shallow depth of 30 miles beneath the epicenter near Chignik Lagoon, Lake and Peninsula County, Alaska, USA, late at night on Tuesday 9 February 2021 at 11:00 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 3.6 as well.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Chignik Lagoon (pop. 78, 53 miles away), the quake was probably not felt.
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Earthquake data:

Date & time: 10 Feb 2021 08:00:34 UTC -
Local time at epicenter: Tuesday, 9 Feb 2021 11:00 pm (GMT -9)
Magnitude: 3.5
Depth: 33.7 km
Epicenter latitude / longitude: 55.9044°N / 157.4158°W (Gulf of Alaska, Alaska, United States)
Nearest volcano: Black Peak (116 km / 72 mi)
Nearby towns and cities:
82 km (51 mi) ESE of Chignik Lagoon (pop: 78) --> See nearby quakes!
92 km (57 mi) ESE of Chignik Lake (pop: 73) --> See nearby quakes!
108 km (67 mi) E of Perryville (pop: 113) --> See nearby quakes!
138 km (86 mi) SE of Port Heiden (pop: 98) --> See nearby quakes!
204 km (127 mi) ENE of Sand Point (pop: 1,060) --> See nearby quakes!
231 km (143 mi) WSW of Akhiok (pop: 72) --> See nearby quakes!
290 km (180 mi) WSW of Old Harbor (pop: 221) --> See nearby quakes!
323 km (201 mi) ENE of King Cove (pop: 1,010) --> See nearby quakes!
359 km (223 mi) SW of Kodiak Station (pop: 1,300) --> See nearby quakes!
370 km (230 mi) WSW of Kodiak (pop: 6,250) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 4.3°C (40 F), humidity: 82%, wind: 11 m/s (20 kts) from ESE
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
3.534 km75 Km SE of Chignik, Alaska, USAUSGS
3.735 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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