Alaska earthquakes

M3.2 earthquake 83 km NNE of Atka, Alaska

A magnitude 3.2 earthquake struck 83 km NNE of Atka, Alaska on Sun, Dec 12, 2021, 1:28 AM HAST (11:28 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M4.2 75 km NE of Atka, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
3.2 (ml), minor
Local time
UTC
2021-12-12 11:28:34 UTC
Depth
16.7 km (10.4 mi), shallow
Epicenter
52.858° N, 173.606° 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 5.9 km horizontally, 7.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
125°
Stations used
24

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.250 km ESE of Atka, Alaska · 1745 days ago · 62 km deep · 94 km away
  2. 2.1Andreanof Islands, Aleutian Islands, Alaska · 1739 days ago · 17 km deep · 91 km away
  3. 3.536 km WNW of Atka, Alaska · 1734 days ago · 188 km deep · 97 km away
  4. 2.555 km N of Atka, Alaska · 1724 days ago · 130 km deep · 38 km away
  5. 4.275 km NE of Atka, Alaska · 1721 days ago · 187 km deep · 37 km away
  6. 3.518 km NNE of Atka, Alaska · 1720 days ago · 146 km deep · 65 km away
  7. 3.417 km WSW of Atka, Alaska · 1719 days ago · 178 km deep · 97 km away
  8. 2.923 km SE of Atka, Alaska · 1703 days ago · 81 km deep · 95 km away
  9. 3.1113 km NE of Atka, Alaska · 1694 days ago · 220 km deep · 31 km away
  10. 1.622 km SE of Atka, Alaska · 1691 days ago · 13 km deep · 90 km away
  11. 3.0Andreanof Islands, Aleutian Islands, Alaska · 1691 days ago · 10 km deep · 93 km away

Before

  1. 2.07 km E of Atka, Alaska · 1753 days ago · 6 km deep · 80 km away
  2. 2.956 km N of Atka, Alaska · 1759 days ago · 179 km deep · 42 km away
  3. 3.515 km NW of Atka, Alaska · 1761 days ago · 178 km deep · 79 km away
  4. 1.915 km SSW of Atka, Alaska · 1771 days ago · 85 km deep · 99 km away
  5. 1.951 km ESE of Atka, Alaska · 1777 days ago · 63 km deep · 88 km away
  6. 4.058 km NNW of Atka, Alaska · 1778 days ago · 211 km deep · 57 km away
  7. 2.142 km ESE of Atka, Alaska · 1779 days ago · 15 km deep · 87 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000gas6. Read Mon, Sep 28, 2026, 4:40 AM UTC.