M3.3 earthquake 116 km SE of Old Harbor, Alaska
A magnitude 3.3 earthquake struck 116 km SE of Old Harbor, Alaska on Sat, Jun 12, 2021, 12:48 PM AKDT (20:48 UTC), 14 km (9 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
- 2021-06-12 20:48:04 UTC
- Depth
- 13.8 km (8.6 mi), shallow
- Epicenter
- 56.356° N, 152.177° W
- Region
- Alaska
- Strongest shaking
- I, not felt shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- I, not felt shaking
- Peak ground acceleration
- 0.0% of gravity
- Peak ground velocity
- -5.4 cm/s
- Map
- Automatic

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
- 31
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 2 in the 30 days before it.
After
- 3.099 km SE of Old Harbor, Alaska · 1932 days ago · 0 km deep · 24 km away
- 3.199 km SE of Old Harbor, Alaska · 1932 days ago · 0 km deep · 25 km away
- 2.7202 km SE of Old Harbor, Alaska · 1916 days ago · 10 km deep · 85 km away
- 1.9110 km SSE of Akhiok, Alaska · 1895 days ago · 31 km deep · 69 km away
- 2.5111 km SSE of Akhiok, Alaska · 1895 days ago · 33 km deep · 76 km away
- 2.130 km ESE of Old Harbor, Alaska · 1884 days ago · 9 km deep · 92 km away
- 2.5Kodiak Island region, Alaska · 1883 days ago · 26 km deep · 80 km away
- 2.7183 km SSE of Old Harbor, Alaska · 1876 days ago · 10 km deep · 67 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0217hwsfoc (also filed as us7000ecib). Read Sat, Sep 26, 2026, 12:40 PM UTC.