M3.1 earthquake 229 km S of King Cove, Alaska
A magnitude 3.1 earthquake struck 229 km S of King Cove, Alaska on Mon, Mar 29, 2021, 6:00 PM AKDT (02:00 UTC), 17 km (11 mi) below the surface.
A larger quake followed: M3.6 148 km SSE of False Pass, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.1 (ml), minor
- Local time
- UTC
- 2021-03-30 02:00:10 UTC
- Depth
- 17.0 km (10.6 mi), shallow
- Epicenter
- 53.017° N, 161.799° 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.
- Location uncertainty
- About 7.0 km horizontally, 21.6 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 244°, poorly surrounded by stations
- Stations used
- 40
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.8240 km SSE of King Cove, Alaska · 2000 days ago · 10 km deep · 51 km away
- 2.7223 km SSE of King Cove, Alaska · 1998 days ago · 10 km deep · 83 km away
- 2.4163 km SSE of King Cove, Alaska · 1998 days ago · 10 km deep · 77 km away
- 2.8208 km SSE of False Pass, Alaska · 1990 days ago · 10 km deep · 25 km away
- 2.2237 km S of False Pass, Alaska · 1989 days ago · 3 km deep · 67 km away
- 3.5156 km SSE of False Pass, Alaska · 1965 days ago · 10 km deep · 88 km away
- 3.6148 km SSE of False Pass, Alaska · 1964 days ago · 10 km deep · 92 km away
- 2.6206 km SSE of False Pass, Alaska · 1957 days ago · 18 km deep · 58 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000dxmk (also filed as ak0214380s72). Read Mon, Sep 28, 2026, 9:41 AM UTC.