M2.4 earthquake 242 km SSW of Adak, Alaska
A magnitude 2.4 earthquake struck 242 km SSW of Adak, Alaska on Fri, Jan 3, 2020, 1:31 PM HAST (23:31 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M4.6 230 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
- Alaska Earthquake Center
- Local time
- UTC
- 2020-01-03 23:31:01 UTC
- Depth
- 19.7 km (12.2 mi), shallow
- Epicenter
- 49.964° N, 178.283° 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
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.9256 km SW of Adak, Alaska · 2455 days ago · 10 km deep · 51 km away
- 4.3222 km SW of Adak, Alaska · 2445 days ago · 7 km deep · 46 km away
- 4.6230 km SSW of Adak, Alaska · 2438 days ago · 10 km deep · 29 km away
- 2.8273 km SW of Adak, Alaska · 2420 days ago · 10 km deep · 89 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0205chnqp. Read Sat, Oct 3, 2026, 10:37 AM UTC.