M2.1 earthquake 51 km NE of Big Delta, Alaska
A magnitude 2.1 earthquake struck 51 km NE of Big Delta, Alaska on Mon, Jul 12, 2021, 8:10 PM AKDT (04:10 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 11 km NW of Harding-Birch Lakes, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (ml), micro
- Local time
- UTC
- 2021-07-13 04:10:42 UTC
- Depth
- 10.2 km (6.3 mi), shallow
- Epicenter
- 64.515° N, 145.192° 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.
- Stations used
- 38
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 0 in the 30 days before it.
After
- 1.56 km NNW of Moose Creek, Alaska · 1904 days ago · 18 km deep · 100 km away
- 1.812 km E of Pleasant Valley, Alaska · 1900 days ago · 10 km deep · 77 km away
- 1.548 km SSW of Central, Alaska · 1899 days ago · 12 km deep · 74 km away
- 4.811 km NW of Harding-Birch Lakes, Alaska · 1895 days ago · 10 km deep · 76 km away · felt by 380
- 1.78 km NW of Harding-Birch Lakes, Alaska · 1893 days ago · 3 km deep · 75 km away
- 1.955 km NE of Harding-Birch Lakes, Alaska · 1893 days ago · 11 km deep · 34 km away
- 2.348 km ENE of Pleasant Valley, Alaska · 1891 days ago · 18 km deep · 65 km away
- 1.814 km WSW of Salcha, Alaska · 1890 days ago · 4 km deep · 96 km away
- 1.815 km W of Salcha, Alaska · 1884 days ago · 1 km deep · 97 km away
- 1.917 km ESE of Healy Lake, Alaska · 1866 days ago · 13 km deep · 78 km away
- 1.614 km ENE of Pleasant Valley, Alaska · 1849 days ago · 10 km deep · 80 km away
- 1.85 km SW of Salcha, Alaska · 1848 days ago · 7 km deep · 85 km away · felt by 3
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0218wwpalp. Read Wed, Sep 30, 2026, 9:14 AM UTC.