M2.3 earthquake 185 km S of Nikolski, Alaska
A magnitude 2.3 earthquake struck 185 km S of Nikolski, Alaska on Tue, Aug 24, 2021, 12:24 AM AKDT (08:24 UTC), 27 km (17 mi) below the surface.
A larger quake followed: M3.8 Fox Islands, Aleutian Islands, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (ml), micro
- Local time
- UTC
- 2021-08-24 08:24:50 UTC
- Depth
- 26.7 km (16.6 mi), shallow
- Epicenter
- 51.274° N, 169.069° 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
- 12
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.9161 km SSE of Nikolski, Alaska · 1858 days ago · 22 km deep · 98 km away
- 2.4159 km S of Nikolski, Alaska · 1853 days ago · 27 km deep · 39 km away
- 3.5214 km SSW of Nikolski, Alaska · 1832 days ago · 10 km deep · 78 km away
- 3.8Fox Islands, Aleutian Islands, Alaska · 1813 days ago · 35 km deep · 99 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak021aufqmfd. Read Wed, Sep 30, 2026, 2:04 PM UTC.