M3.2 earthquake 276 km SSW of Adak, Alaska
A magnitude 3.2 earthquake struck 276 km SSW of Adak, Alaska on Wed, Mar 29, 2023, 12:06 PM GMT-12 (00:06 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.7 Andreanof 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
- 3.2 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2023-03-30 00:06:18 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 49.767° N, 178.723° 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 |
|---|---|---|---|
| 3.2 | ML, local (Richter) | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.097 · 14 stations |
| 2.9 | 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 7.7 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- Operator assigned
- Station coverage gap
- 285°, poorly surrounded by stations
- Stations used
- 16
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.9225 km SW of Adak, Alaska · 1274 days ago · 10 km deep · 54 km away
- 3.7Andreanof Islands, Aleutian Islands, Alaska · 1273 days ago · 10 km deep · 57 km away
- 3.6213 km SSW of Adak, Alaska · 1270 days ago · 10 km deep · 98 km away
- 3.0243 km SW of Adak, Alaska · 1233 days ago · 10 km deep · 54 km away
- 3.2Andreanof Islands, Aleutian Islands, Alaska · 1229 days ago · 10 km deep · 99 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000k22y (also filed as ak023436v83g). Read Thu, Oct 1, 2026, 1:37 PM UTC.