Alaska earthquakes

M1.8 earthquake 21 km E of Copper Center, Alaska

A magnitude 1.8 earthquake struck 21 km E of Copper Center, Alaska on Thu, Jan 28, 2021, 11:13 PM AKST (08:13 UTC), 73 km (45 mi) below the surface.

A larger quake followed: M3.8 30 km S of Nelchina, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2021-01-29 08:13:50 UTC
Depth
73.2 km (45.5 mi), intermediate-depth
Epicenter
61.989° N, 144.928° 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
67

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.745 km SSE of Nelchina, Alaska · 2063 days ago · 19 km deep · 96 km away
  2. 2.048 km SSE of Nelchina, Alaska · 2061 days ago · 24 km deep · 87 km away
  3. 1.54 km WSW of Chitina, Alaska · 2058 days ago · 40 km deep · 59 km away
  4. 1.850 km SSE of Nelchina, Alaska · 2058 days ago · 40 km deep · 83 km away
  5. 1.737 km N of Valdez, Alaska · 2055 days ago · 20 km deep · 98 km away
  6. 2.046 km SSE of Nelchina, Alaska · 2053 days ago · 30 km deep · 83 km away
  7. 1.548 km N of Valdez, Alaska · 2052 days ago · 28 km deep · 84 km away
  8. 1.548 km SSE of Nelchina, Alaska · 2041 days ago · 34 km deep · 88 km away
  9. 1.649 km SSE of Nelchina, Alaska · 2039 days ago · 32 km deep · 87 km away
  10. 1.648 km N of Valdez, Alaska · 2037 days ago · 22 km deep · 85 km away
  11. 1.545 km N of Valdez, Alaska · 2037 days ago · 32 km deep · 87 km away
  12. 3.830 km S of Nelchina, Alaska · 2037 days ago · 11 km deep · 98 km away · felt by 26
  13. 1.830 km S of Nelchina, Alaska · 2035 days ago · 30 km deep · 99 km away
  14. 1.519 km S of Nelchina, Alaska · 2035 days ago · 30 km deep · 96 km away
  15. 1.651 km SE of Nelchina, Alaska · 2032 days ago · 27 km deep · 80 km away
  16. 3.051 km N of Valdez, Alaska · 2030 days ago · 21 km deep · 85 km away
  17. 1.541 km N of Valdez, Alaska · 2028 days ago · 28 km deep · 88 km away
  18. 2.246 km WSW of Tonsina, Alaska · 2027 days ago · 28 km deep · 74 km away
  19. 1.635 km N of Valdez, Alaska · 2025 days ago · 20 km deep · 92 km away
  20. 1.519 km SSE of Nelchina, Alaska · 2016 days ago · 25 km deep · 93 km away
  21. 1.547 km SSE of Nelchina, Alaska · 2012 days ago · 15 km deep · 94 km away

Before

  1. 1.533 km NNE of Valdez, Alaska · 2068 days ago · 28 km deep · 91 km away
  2. 1.751 km W of Tonsina, Alaska · 2069 days ago · 35 km deep · 78 km away
  3. 1.845 km NNW of Valdez, Alaska · 2069 days ago · 15 km deep · 98 km away
  4. 1.629 km SSE of Tonsina, Alaska · 2070 days ago · 5 km deep · 66 km away
  5. 1.547 km SSE of Nelchina, Alaska · 2075 days ago · 29 km deep · 96 km away
  6. 1.550 km N of Valdez, Alaska · 2076 days ago · 30 km deep · 86 km away
  7. 1.647 km SSE of Nelchina, Alaska · 2076 days ago · 20 km deep · 91 km away
  8. 1.545 km N of Valdez, Alaska · 2078 days ago · 37 km deep · 94 km away
  9. 1.943 km SSE of Nelchina, Alaska · 2081 days ago · 28 km deep · 86 km away
  10. 1.746 km SSE of Nelchina, Alaska · 2081 days ago · 22 km deep · 81 km away
  11. 1.749 km N of Valdez, Alaska · 2081 days ago · 25 km deep · 92 km away
  12. 2.226 km SSE of Nelchina, Alaska · 2081 days ago · 37 km deep · 93 km away
  13. 2.030 km SSE of Nelchina, Alaska · 2087 days ago · 14 km deep · 84 km away
  14. 1.946 km SSE of Nelchina, Alaska · 2088 days ago · 35 km deep · 84 km away
  15. 1.645 km NNW of Valdez, Alaska · 2093 days ago · 37 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0211c3ffcm. Read Sun, Sep 27, 2026, 12:24 PM UTC.