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Past earthquakes in Alaska and the Aleutian Islands: 2020 - list, stats and map

Updated: Apr 18, 2024 20:52 GMT -
In 2020, Alaska and the Aleutian Islands has had 19,611 quakes of magnitudes up to 7.8:
  • 2 quakes above magnitude 7
  • 4 quakes between magnitude 6 and 7
  • 35 quakes between magnitude 5 and 6
  • 191 quakes between magnitude 4 and 5
  • 869 quakes between magnitude 3 and 4
  • 3,709 quakes between magnitude 2 and 3
  • 14,801 quakes below magnitude 2 that people normally don't feel.
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Showing quakes magnitude 4.5 or higher, within up to 300 km (186 mi) distance (213 out of 19,611 quakes, show more):
Past earthquakes in Alaska and the Aleutian Islands: 2020 - list, stats and map
Date and TimeMag
Depth
Nearest VolcanoLocationDetailsMap
Dec 29, 2020 06:22 pm (Anchorage)
4.5

28 km
29 km (18 mi) to the E 91 Km SE of Sand Point, Alaska, USA
Info
Tuesday, December 29, 2020 GMT (1 quake)
Dec 29, 2020 12:41 am (GMT -9)
4.5

10 km
227 km (141 mi) to the E North Pacific Ocean, 164 mi southeast of Kodiak, Kodiak Island Borough, Alaska, United States
Info
Monday, December 21, 2020 GMT (1 quake)
Dec 21, 2020 03:57 am (Anchorage)
4.7

50 km
8 km (5 mi) to the E 57 Km SSE of Sand Point, Alaska, USA
Info
Saturday, December 19, 2020 GMT (1 quake)
Dec 18, 2020 03:10 pm (Anchorage)
5.0

32 km
31 km (19 mi) to the E 52 mi southeast of Sand Point, Aleutians East, Alaska, United States Info
Thursday, December 17, 2020 GMT (1 quake)
Dec 17, 2020 06:32 am (Adak)
4.7

88 km
16 km (9.9 mi) to the SW Bering Sea, 31 mi west of Atka, Alaska, USA
Info
Wednesday, December 16, 2020 GMT (2 quakes)
Dec 16, 2020 09:13 am (Adak)
5.0

50 km
37 km (23 mi) to the SW 131 Km SW of Adak, Alaska, USA 1 reportInfo
Dec 15, 2020 08:49 pm (GMT -9)
5.3

10 km
142 km (88 mi) to the E 192 Km S of Sand Point, Alaska, USA Info
Monday, December 14, 2020 GMT (1 quake)
Dec 13, 2020 11:01 pm (GMT -10)
4.5

231 km
33 km (21 mi) to the SW Bering Sea, 181 mi west of Unalaska, USA
Info
Sunday, December 13, 2020 GMT (1 quake)
Dec 13, 2020 09:06 am (GMT -10)
4.6

179 km
46 km (29 mi) to the SW Bering Sea, 43 mi north of Atka, Alaska, USA
Info
Thursday, December 10, 2020 GMT (2 quakes)
Dec 10, 2020 02:51 am (GMT -10)
4.5

10 km
117 km (73 mi) to the SW Bering Sea, 132 mi southwest of Adak, Alaska, USA
Info
Dec 9, 2020 04:37 pm (Anchorage)
4.9

27 km
37 km (23 mi) to the E Gulf of Alaska, 63 mi southeast of Sand Point, Alaska, USA
Info
Show more
About these data
Estimated combined seismic energy released: 4.9 x 1016 joules (13540 gigawatt hours, equivalent to 1.2 x 107 tons of TNT or 728.1 atomic bombs!) | about seismic energy

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Earthquake statistics

Number of earthquakes over time

in 2020
Number of earthquakes over time: in 2020

Magnitude and seismic energy over time

in 2020
Magnitude and seismic energy over time: in 2020

Magnitude and energy distribution

in 2020
Magnitude and energy distribution: in 2020

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Earthquakes in Alaska and the Aleutian Islands

Quakes in nearby regions

Achaiak Island | Adak Island | Admiralty Island | Aiaktalik Island | Akutan Island | Alligator Island | Amagat Island | Amatignak Island | Amukta Island | Anangula Island |  ...Show all... | Yukon,  Canada | Yunaska Island

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