M1.7 earthquake 45 km ENE of Ruby, Alaska
A magnitude 1.7 earthquake struck 45 km ENE of Ruby, Alaska on Fri, Mar 12, 2021, 12:38 AM AKST (09:38 UTC), 20 km (12 mi) below the surface.
A larger quake followed: M2.8 66 km NW of Lake Minchumina, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.7 (ML, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2021-03-12 09:38:32 UTC
- Depth
- 19.6 km (12.2 mi), shallow
- Epicenter
- 64.855° N, 154.577° 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
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 8 in the 30 days before it.
After
- 1.631 km E of Ruby, Alaska · 2024 days ago · 6 km deep · 14 km away
- 1.666 km WNW of Tanana, Alaska · 2013 days ago · 12 km deep · 83 km away
- 2.866 km NW of Lake Minchumina, Alaska · 1987 days ago · 14 km deep · 87 km away
- 2.364 km WNW of Tanana, Alaska · 1983 days ago · 10 km deep · 82 km away
- 2.665 km ENE of Ruby, Alaska · 1977 days ago · 13 km deep · 21 km away
- 2.866 km ENE of Ruby, Alaska · 1977 days ago · 10 km deep · 22 km away
Before
- 1.666 km SW of Tanana, Alaska · 2032 days ago · 12 km deep · 66 km away
- 2.180 km W of Tanana, Alaska · 2051 days ago · 11 km deep · 56 km away
- 1.983 km W of Tanana, Alaska · 2051 days ago · 11 km deep · 54 km away
- 1.982 km W of Tanana, Alaska · 2051 days ago · 6 km deep · 54 km away
- 1.581 km W of Tanana, Alaska · 2053 days ago · 8 km deep · 55 km away
- 1.680 km W of Tanana, Alaska · 2053 days ago · 8 km deep · 56 km away
- 2.441 km N of Ruby, Alaska · 2054 days ago · 14 km deep · 51 km away
- 2.466 km WNW of Tanana, Alaska · 2056 days ago · 10 km deep · 83 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak02139kqr55. Read Thu, Oct 1, 2026, 5:27 AM UTC.