Mag. 3.9 earthquake - North Pacific Ocean, 141 mi east of Unalaska, USA, on Sunday, 20 September 2020 at 02:07 (GMT) -

Mag. 3.9 earthquake - North Pacific Ocean, 141 mi east of Unalaska, USA, on Sunday, 20 September 2020 at 02:07 (GMT)

Minor magnitude 3.9 earthquake at 10 km depth

20 Sep 02:24 UTC: First to report: USGS after 16 minutes.
Date & time: 20 Sep 2020 02:07:39 UTC -
Magnitude: 3.9
Depth: 10.0 km
Epicenter latitude / longitude: 53.0772°N / 163.3747°W (North Pacific Ocean, Alaska, United States)
Nearest volcano: Westdahl (181 km / 112 mi)
Nearby towns and cities:
197 km (123 mi) SE of Akutan (pop: 1,040) --> See nearby quakes!
198 km (123 mi) S of False Pass (pop: 40) --> See nearby quakes!
227 km (141 mi) ESE of Unalaska (pop: 4,490) --> See nearby quakes!
231 km (144 mi) SSW of King Cove (pop: 1,010) --> See nearby quakes!
238 km (148 mi) S of Cold Bay (pop: 123) --> See nearby quakes!
313 km (195 mi) SW of Sand Point (pop: 1,060) --> See nearby quakes!
354 km (220 mi) SSW of Nelson Lagoon (pop: 52) --> See nearby quakes!
417 km (259 mi) SW of Perryville (pop: 113) --> See nearby quakes!
6437 km (4000 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
6437 km (4000 mi) NW of Washington DC (District of Columbia) (pop: 601,700) --> See nearby quakes!
159 km (99 mi) SE of Tigalda Island --> See nearby quakes!
179 km (111 mi) SE of Rootok Island --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 10.6°C (51 F), humidity: 79%, wind: 7 km/h (4 kts) from WSW
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 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 3.910 km197 Km SE of Akutan, Alaska, USAUSGS
M 3.910 kmUnimak Island Region, Alaska, 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

Mag. 3.9 earthquake - North Pacific Ocean, 141 mi east of Unalaska, USA, on Sunday, 20 September 2020 at 02:07 (GMT)

Map of earlier quakes

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