M5.1 earthquake - 75 km SE of Atka, Alaska
1973 d ago · 22 May 2021, 09:04 UTC 75 km SE of Atka, Alaska
What happened
A magnitude 5.1 earthquake struck 75 km SE of Atka, Alaska on 22 May 2021, 09:04 UTC at a depth of 21 km.
Earthquakes of this size are classed as Moderate. Can damage poorly built structures close to the epicentre. This was a shallow earthquake, which tends to be felt more strongly at the surface.
Timeline
First reported by USGS
16 Oct 2026, 20:47 UTC
Community
Did you feel it?
Nearby in the last 30 days
- 2.2
M2.2 earthquake - 72 km WSW of Nikolski, Alaska
10 km deep
Minor - 0.5
M0.5 earthquake - 41 km NE of Adak, Alaska
5 km deep
Minor - 3.5
M3.5 earthquake - 8 km SW of Atka, Alaska
195 km deep
Light - 2.6
M2.6 earthquake - 73 km WSW of Nikolski, Alaska
12 km deep
Light - 2.9
M2.9 earthquake - 93 km ESE of Adak, Alaska
27 km deep
Light - 4.2
M4.2 earthquake - 167 km S of Adak, Alaska
10 km deep
Moderate - 4.5
M4.5 earthquake - 101 km WSW of Nikolski, Alaska
92 km deep
Moderate - 6.5
M6.5 earthquake - 177 km W of Nikolski, Alaska
98 km deep Tsunami flag
Major