M2.4 earthquake 159 km S of Nikolski, Alaska
A magnitude 2.4 earthquake struck 159 km S of Nikolski, Alaska on Fri, Sep 3, 2021, 6:28 AM AKDT (14:28 UTC), 27 km (17 mi) below the surface.
A larger quake followed: M3.1 95 km SSW of Nikolski, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.4 (ml), micro
- Local time
- UTC
- 2021-09-03 14:28:04 UTC
- Depth
- 27.4 km (17.0 mi), shallow
- Epicenter
- 51.512° N, 168.651° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 5 in the 30 days before it.
After
- 3.195 km SSW of Nikolski, Alaska · 1833 days ago · 7 km deep · 89 km away
- 3.8Fox Islands, Aleutian Islands, Alaska · 1806 days ago · 35 km deep · 86 km away
Before
- 1.9161 km SSE of Nikolski, Alaska · 1851 days ago · 22 km deep · 61 km away
- 2.3185 km S of Nikolski, Alaska · 1857 days ago · 27 km deep · 39 km away
- 3.696 km SSE of Nikolski, Alaska · 1858 days ago · 10 km deep · 68 km away
- 2.6100 km SSE of Nikolski, Alaska · 1863 days ago · 35 km deep · 83 km away
- 1.985 km SSW of Nikolski, Alaska · 1868 days ago · 30 km deep · 92 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021bb2pgbp. Read Wed, Sep 23, 2026, 10:42 PM UTC.