M2.3 earthquake 266 km SW of Adak, Alaska
A magnitude 2.3 earthquake struck 266 km SW of Adak, Alaska on Thu, Jul 30, 2020, 6:45 PM GMT-12 (06:45 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M3.6 south of the Aleutian Islands. 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, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2020-07-31 06:45:37 UTC
- Depth
- 19.8 km (12.3 mi), shallow
- Epicenter
- 50.083° N, 179.146° 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
- 29
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 5 in the 30 days before it.
After
Before
- 2.1284 km SW of Adak, Alaska · 2266 days ago · 7 km deep · 19 km away
- 1.8278 km SW of Adak, Alaska · 2266 days ago · 29 km deep · 40 km away
- 2.1284 km SW of Adak, Alaska · 2266 days ago · 15 km deep · 51 km away
- 1.9Rat Islands, Aleutian Islands, Alaska · 2266 days ago · 7 km deep · 68 km away
- 2.7284 km SW of Adak, Alaska · 2278 days ago · 10 km deep · 55 km away
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0209sdb8wf. Read Thu, Oct 1, 2026, 9:20 PM UTC.