M3.3 earthquake 234 km S of Sand Point, Alaska
A magnitude 3.3 earthquake struck 234 km S of Sand Point, Alaska on Mon, Oct 11, 2021, 4:24 AM AKDT (12:24 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ml), minor
- Local time
- UTC
- 2021-10-11 12:24:45 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 53.267° N, 159.852° 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 7.3 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 223°, poorly surrounded by stations
- Stations used
- 60
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 2.7146 km SSE of Sand Point, Alaska · 1800 days ago · 26 km deep · 100 km away
- 2.6209 km S of Sand Point, Alaska · 1762 days ago · 10 km deep · 44 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000ftrr (also filed as ak021d1vx5gj). Read Wed, Sep 23, 2026, 7:15 AM UTC.