M3.1 earthquake 98 km SE of Old Harbor, Alaska
A magnitude 3.1 earthquake struck 98 km SE of Old Harbor, Alaska on Sat, Jun 12, 2021, 12:39 PM AKDT (20:39 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.3 116 km SE of Old Harbor, 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
- 2021-06-12 20:39:21 UTC
- Depth
- 9.9 km (6.1 mi), shallow
- Epicenter
- 56.482° N, 152.363° 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 5.8 km horizontally, 10.0 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 196°, poorly surrounded by stations
- Stations used
- 39
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.3116 km SE of Old Harbor, Alaska · 1932 days ago · 14 km deep · 18 km away
- 3.099 km SE of Old Harbor, Alaska · 1932 days ago · 0 km deep · 16 km away
- 3.199 km SE of Old Harbor, Alaska · 1932 days ago · 0 km deep · 17 km away
- 2.625 km E of Old Harbor, Alaska · 1932 days ago · 36 km deep · 87 km away
- 1.620 km SW of Old Harbor, Alaska · 1905 days ago · 25 km deep · 98 km away
- 1.9110 km SSE of Akhiok, Alaska · 1896 days ago · 31 km deep · 67 km away
- 2.5111 km SSE of Akhiok, Alaska · 1896 days ago · 33 km deep · 73 km away
- 2.730 km E of Old Harbor, Alaska · 1885 days ago · 10 km deep · 85 km away
- 2.130 km ESE of Old Harbor, Alaska · 1884 days ago · 9 km deep · 75 km away
- 2.5Kodiak Island region, Alaska · 1884 days ago · 26 km deep · 77 km away
- 2.7183 km SSE of Old Harbor, Alaska · 1876 days ago · 10 km deep · 85 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000eci6 (also filed as ak0217hwqoat). Read Sat, Sep 26, 2026, 11:45 PM UTC.