M2.4 earthquake 227 km SSW of Adak, Alaska
A magnitude 2.4 earthquake struck 227 km SSW of Adak, Alaska on Tue, Feb 8, 2022, 5:48 PM HAST (03:48 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.8 249 km SSW of Adak, 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, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2022-02-09 03:48:15 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 50.048° N, 178.086° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 2.4 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.148 · 6 stations |
| 2.5 | ML, local (Richter) | Alaska Earthquake Center | Preliminary |
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.9 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- Operator assigned
- Station coverage gap
- 279°, poorly surrounded by stations
- Stations used
- 20
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.0217 km SSW of Adak, Alaska · 1681 days ago · 10 km deep · 55 km away
- 3.0214 km SSW of Adak, Alaska · 1677 days ago · 10 km deep · 14 km away
- 3.7164 km SSW of Adak, Alaska · 1676 days ago · 10 km deep · 76 km away
- 2.4179 km SSW of Adak, Alaska · 1670 days ago · 37 km deep · 47 km away
- 2.1203 km SW of Adak, Alaska · 1656 days ago · 17 km deep · 41 km away
- 2.5Andreanof Islands, Aleutian Islands, Alaska · 1652 days ago · 17 km deep · 18 km away
- 2.5Andreanof Islands, Aleutian Islands, Alaska · 1648 days ago · 22 km deep · 16 km away
- 3.8249 km SSW of Adak, Alaska · 1647 days ago · 10 km deep · 32 km away
Before
- 2.7245 km SW of Adak, Alaska · 1700 days ago · 10 km deep · 38 km away
- 2.2Andreanof Islands, Aleutian Islands, Alaska · 1700 days ago · 25 km deep · 76 km away
- 2.6269 km SW of Adak, Alaska · 1704 days ago · 10 km deep · 72 km away
- 4.0Andreanof Isl., Aleutian Islands, Alaska · 1726 days ago · 10 km deep · 78 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000h0yk (also filed as ak0221u7ki7l). Read Fri, Oct 2, 2026, 3:25 AM UTC.