Alaska earthquakes

M1.6 earthquake 19 km W of Tyonek, Alaska

A magnitude 1.6 earthquake struck 19 km W of Tyonek, Alaska on Sat, Feb 20, 2021, 7:25 PM AKST (04:25 UTC), 77 km (48 mi) below the surface.

A larger quake followed: M5.3 5 km SSE of Point MacKenzie, Alaska. This one was a foreshock.

Nikiski forecastMore in Alaska

Map

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

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2021-02-21 04:25:25 UTC
Depth
77.4 km (48.1 mi), intermediate-depth
Epicenter
61.059° N, 151.498° 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
51

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 151 in the 30 days before it.

After

  1. 2.318 km N of Hope, Alaska · 2043 days ago · 38 km deep · 99 km away · felt by 1
  2. 1.722 km NNW of Susitna, Alaska · 2043 days ago · 62 km deep · 86 km away
  3. 1.513 km W of Salamatof, Alaska · 2042 days ago · 73 km deep · 51 km away
  4. 1.618 km S of Skwentna, Alaska · 2042 days ago · 79 km deep · 85 km away
  5. 1.768 km W of Tyonek, Alaska · 2042 days ago · 112 km deep · 49 km away
  6. 1.831 km S of Skwentna, Alaska · 2041 days ago · 75 km deep · 73 km away
  7. 1.815 km WNW of Nikiski, Alaska · 2041 days ago · 72 km deep · 34 km away
  8. 1.916 km NE of Susitna, Alaska · 2041 days ago · 51 km deep · 92 km away
  9. 1.561 km NW of Ninilchik, Alaska · 2041 days ago · 94 km deep · 90 km away
  10. 1.619 km SE of Skwentna, Alaska · 2041 days ago · 71 km deep · 93 km away
  11. 1.61 km SW of Tyonek, Alaska · 2040 days ago · 66 km deep · 18 km away
  12. 1.614 km ESE of Clam Gulch, Alaska · 2040 days ago · 69 km deep · 98 km away
  13. 1.659 km NW of Ninilchik, Alaska · 2040 days ago · 101 km deep · 88 km away
  14. 1.643 km NW of Ninilchik, Alaska · 2040 days ago · 91 km deep · 96 km away
  15. 1.669 km W of Tyonek, Alaska · 2040 days ago · 117 km deep · 50 km away
  16. 1.864 km W of Tyonek, Alaska · 2040 days ago · 106 km deep · 45 km away
  17. 1.655 km W of Tyonek, Alaska · 2040 days ago · 93 km deep · 36 km away
  18. 1.829 km WSW of Skwentna, Alaska · 2039 days ago · 99 km deep · 91 km away
  19. 1.556 km W of Tyonek, Alaska · 2039 days ago · 97 km deep · 37 km away
  20. 1.623 km WNW of Nikiski, Alaska · 2039 days ago · 75 km deep · 31 km away
  21. 1.549 km WNW of Nikiski, Alaska · 2038 days ago · 99 km deep · 36 km away
  22. 1.615 km N of Beluga, Alaska · 2038 days ago · 65 km deep · 34 km away
  23. 2.070 km WNW of Nikiski, Alaska · 2038 days ago · 117 km deep · 54 km away
  24. 1.61 km SSE of Funny River, Alaska · 2038 days ago · 44 km deep · 76 km away
  25. 1.814 km WNW of Tyonek, Alaska · 2037 days ago · 70 km deep · 10 km away
  26. 1.626 km ENE of Sterling, Alaska · 2037 days ago · 42 km deep · 78 km away
  27. 2.028 km ENE of Beluga, Alaska · 2037 days ago · 46 km deep · 52 km away
  28. 1.96 km NNW of Clam Gulch, Alaska · 2037 days ago · 57 km deep · 86 km away
  29. 5.35 km SSE of Point MacKenzie, Alaska · 2037 days ago · 46 km deep · 89 km away · felt by 2,970 · tsunami flag
  30. 5.35 km SSE of Point MacKenzie, Alaska · 2037 days ago · 46 km deep · 89 km away
  31. 1.73 km SW of Point MacKenzie, Alaska · 2037 days ago · 46 km deep · 84 km away
  32. 1.64 km SW of Point MacKenzie, Alaska · 2037 days ago · 44 km deep · 84 km away
  33. 1.528 km NW of Ninilchik, Alaska · 2037 days ago · 86 km deep · 98 km away · felt by 3
  34. 1.925 km W of Cooper Landing, Alaska · 2037 days ago · 47 km deep · 91 km away
  35. 1.554 km NW of Ninilchik, Alaska · 2037 days ago · 99 km deep · 97 km away
  36. 1.715 km E of Point Possession, Alaska · 2037 days ago · 10 km deep · 61 km away
  37. 1.730 km WNW of Susitna, Alaska · 2037 days ago · 73 km deep · 71 km away
  38. 1.925 km WNW of Susitna, Alaska · 2036 days ago · 63 km deep · 73 km away
  39. 1.549 km WNW of Clam Gulch, Alaska · 2036 days ago · 85 km deep · 83 km away
  40. 1.613 km SE of Tyonek, Alaska · 2036 days ago · 62 km deep · 29 km away
  41. 1.541 km NNW of Beluga, Alaska · 2036 days ago · 77 km deep · 44 km away
  42. 1.63 km SSW of Point MacKenzie, Alaska · 2035 days ago · 45 km deep · 85 km away
  43. 1.638 km WNW of Susitna, Alaska · 2035 days ago · 68 km deep · 65 km away
  44. 2.123 km ESE of Skwentna, Alaska · 2035 days ago · 63 km deep · 99 km away
  45. 1.89 km ENE of Susitna, Alaska · 2035 days ago · 54 km deep · 84 km away
  46. 1.823 km WNW of Nikiski, Alaska · 2035 days ago · 77 km deep · 34 km away
  47. 1.970 km WNW of Nikiski, Alaska · 2035 days ago · 112 km deep · 57 km away
  48. 2.050 km NW of Beluga, Alaska · 2035 days ago · 95 km deep · 49 km away
  49. 1.711 km WNW of Susitna, Alaska · 2034 days ago · 57 km deep · 74 km away
  50. 1.722 km ESE of Kasilof, Alaska · 2034 days ago · 63 km deep · 97 km away
  51. 1.558 km W of Tyonek, Alaska · 2034 days ago · 99 km deep · 39 km away
  52. 1.77 km ESE of Kalifornsky, Alaska · 2034 days ago · 16 km deep · 77 km away · felt by 1
  53. 2.211 km NW of Point MacKenzie, Alaska · 2034 days ago · 43 km deep · 85 km away · felt by 1
  54. 2.073 km WNW of Beluga, Alaska · 2034 days ago · 4 km deep · 59 km away
  55. 2.122 km SSE of Susitna, Alaska · 2034 days ago · 47 km deep · 66 km away
  56. 1.61 km WSW of Point MacKenzie, Alaska · 2034 days ago · 45 km deep · 86 km away
  57. 1.641 km WNW of Clam Gulch, Alaska · 2033 days ago · 80 km deep · 81 km away
  58. 4.557 km NW of Beluga, Alaska · 2033 days ago · 99 km deep · 49 km away · felt by 189 · tsunami flag
  59. 1.67 km E of Nikiski, Alaska · 2033 days ago · 61 km deep · 46 km away
  60. 1.512 km SSW of Susitna, Alaska · 2033 days ago · 54 km deep · 63 km away

The first 60 of at least 199.

Before

  1. 1.65 km SSW of Point Possession, Alaska · 2044 days ago · 32 km deep · 46 km away
  2. 2.840 km NW of Ninilchik, Alaska · 2044 days ago · 97 km deep · 98 km away
  3. 1.541 km W of Salamatof, Alaska · 2044 days ago · 77 km deep · 58 km away
  4. 1.76 km SSW of Big Lake, Alaska · 2044 days ago · 44 km deep · 92 km away
  5. 1.664 km NW of Ninilchik, Alaska · 2044 days ago · 103 km deep · 87 km away
  6. 2.720 km E of Beluga, Alaska · 2044 days ago · 16 km deep · 44 km away
  7. 1.914 km W of Point Possession, Alaska · 2045 days ago · 15 km deep · 32 km away
  8. 2.423 km NW of Beluga, Alaska · 2045 days ago · 77 km deep · 23 km away
  9. 2.1Southern Alaska · 2045 days ago · 56 km deep · 50 km away
  10. 1.522 km NNE of Sterling, Alaska · 2045 days ago · 55 km deep · 63 km away
  11. 1.829 km SSE of Skwentna, Alaska · 2045 days ago · 77 km deep · 78 km away
  12. 1.530 km NW of Ninilchik, Alaska · 2045 days ago · 74 km deep · 95 km away
  13. 2.010 km SW of Point MacKenzie, Alaska · 2045 days ago · 46 km deep · 78 km away
  14. 1.530 km NW of Susitna, Alaska · 2046 days ago · 67 km deep · 81 km away
  15. 1.569 km WNW of Beluga, Alaska · 2046 days ago · 1 km deep · 55 km away
  16. 2.019 km NW of Nikiski, Alaska · 2046 days ago · 74 km deep · 25 km away
  17. 1.852 km SSW of Skwentna, Alaska · 2046 days ago · 98 km deep · 53 km away
  18. 1.919 km ENE of Point Possession, Alaska · 2046 days ago · 42 km deep · 63 km away
  19. 2.236 km W of Susitna, Alaska · 2046 days ago · 2 km deep · 53 km away
  20. 2.647 km NW of Beluga, Alaska · 2047 days ago · 75 km deep · 48 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0212e2h6vq. Read Sat, Sep 26, 2026, 1:10 PM UTC.