Alaska earthquakes

M1.6 earthquake 33 km W of Tatitlek, Alaska

A magnitude 1.6 earthquake struck 33 km W of Tatitlek, Alaska on Tue, Dec 21, 2021, 9:02 AM AKST (18:02 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M2.0 43 km N of Valdez, Alaska. This one was a foreshock.

Valdez 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
2021-12-21 18:02:33 UTC
Depth
22.9 km (14.2 mi), shallow
Epicenter
60.898° N, 147.285° W
Region
Alaska
Strongest shaking
III, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
III, weak shaking
Peak ground acceleration
0.7% of gravity
Peak ground velocity
-2.0 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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
41

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 57 in the 30 days before it.

After

  1. 2.043 km N of Valdez, Alaska · 1737 days ago · 17 km deep · 83 km away
  2. 2.4Southern Alaska · 1737 days ago · 9 km deep · 60 km away
  3. 2.123 km SSW of Tatitlek, Alaska · 1737 days ago · 13 km deep · 34 km away
  4. 1.540 km NNE of Chenega, Alaska · 1736 days ago · 4 km deep · 60 km away
  5. 1.619 km S of Tatitlek, Alaska · 1736 days ago · 14 km deep · 40 km away
  6. 3.2Southern Alaska · 1736 days ago · 9 km deep · 70 km away · felt by 1
  7. 1.829 km WNW of Valdez, Alaska · 1736 days ago · 12 km deep · 45 km away
  8. 2.638 km NNW of Valdez, Alaska · 1735 days ago · 13 km deep · 70 km away
  9. 1.534 km SSE of Chickaloon, Alaska · 1734 days ago · 29 km deep · 84 km away
  10. 1.637 km N of Valdez, Alaska · 1733 days ago · 23 km deep · 78 km away
  11. 2.650 km WSW of Tatitlek, Alaska · 1732 days ago · 9 km deep · 22 km away · felt by 2
  12. 3.335 km NW of Valdez, Alaska · 1732 days ago · 10 km deep · 55 km away · felt by 3
  13. 2.134 km SW of Glacier View, Alaska · 1732 days ago · 22 km deep · 84 km away
  14. 1.531 km NNW of Valdez, Alaska · 1732 days ago · 15 km deep · 71 km away
  15. 1.616 km ESE of Glacier View, Alaska · 1731 days ago · 26 km deep · 92 km away
  16. 1.647 km SSE of Nelchina, Alaska · 1730 days ago · 22 km deep · 95 km away
  17. 2.823 km ENE of Girdwood, Alaska · 1730 days ago · 10 km deep · 83 km away
  18. 1.948 km NNW of Valdez, Alaska · 1730 days ago · 20 km deep · 81 km away
  19. 1.639 km N of Valdez, Alaska · 1729 days ago · 20 km deep · 86 km away
  20. 2.031 km SSW of Glacier View, Alaska · 1729 days ago · 27 km deep · 77 km away
  21. 1.639 km N of Valdez, Alaska · 1728 days ago · 17 km deep · 86 km away
  22. 1.533 km NW of Valdez, Alaska · 1726 days ago · 16 km deep · 59 km away
  23. 1.733 km NNE of Chenega, Alaska · 1726 days ago · 18 km deep · 68 km away
  24. 1.736 km NNE of Chenega, Alaska · 1726 days ago · 10 km deep · 65 km away
  25. 1.955 km ENE of Chenega, Alaska · 1726 days ago · 16 km deep · 70 km away
  26. 1.646 km SSE of Nelchina, Alaska · 1726 days ago · 30 km deep · 89 km away
  27. 1.839 km NNW of Valdez, Alaska · 1725 days ago · 21 km deep · 70 km away
  28. 1.738 km E of Valdez, Alaska · 1724 days ago · 21 km deep · 93 km away
  29. 2.525 km NNW of Valdez, Alaska · 1723 days ago · 18 km deep · 65 km away
  30. 2.428 km NE of Girdwood, Alaska · 1722 days ago · 31 km deep · 88 km away
  31. 2.042 km NW of Valdez, Alaska · 1721 days ago · 19 km deep · 62 km away
  32. 2.041 km NW of Valdez, Alaska · 1721 days ago · 25 km deep · 64 km away
  33. 1.936 km NW of Valdez, Alaska · 1721 days ago · 12 km deep · 52 km away
  34. 1.560 km SSW of Tatitlek, Alaska · 1721 days ago · 15 km deep · 64 km away
  35. 1.841 km NNE of Chenega, Alaska · 1720 days ago · 9 km deep · 60 km away
  36. 1.652 km WNW of Valdez, Alaska · 1720 days ago · 11 km deep · 49 km away
  37. 1.820 km WNW of Tatitlek, Alaska · 1720 days ago · 20 km deep · 14 km away
  38. 2.044 km N of Valdez, Alaska · 1720 days ago · 20 km deep · 81 km away
  39. 1.732 km NW of Valdez, Alaska · 1720 days ago · 12 km deep · 55 km away
  40. 1.750 km SSE of Nelchina, Alaska · 1719 days ago · 16 km deep · 94 km away
  41. 2.546 km SSE of Glacier View, Alaska · 1719 days ago · 16 km deep · 61 km away
  42. 1.552 km SW of Tatitlek, Alaska · 1719 days ago · 11 km deep · 40 km away
  43. 1.543 km NNW of Valdez, Alaska · 1718 days ago · 13 km deep · 69 km away
  44. 1.620 km ENE of Valdez, Alaska · 1718 days ago · 21 km deep · 77 km away
  45. 1.740 km NNE of Chenega, Alaska · 1717 days ago · 14 km deep · 61 km away
  46. 1.529 km E of Tatitlek, Alaska · 1717 days ago · 13 km deep · 62 km away
  47. 1.620 km NE of Girdwood, Alaska · 1717 days ago · 19 km deep · 87 km away
  48. 1.714 km ESE of Knik River, Alaska · 1716 days ago · 27 km deep · 93 km away
  49. 1.944 km SSE of Nelchina, Alaska · 1715 days ago · 13 km deep · 89 km away
  50. 2.547 km SSE of Nelchina, Alaska · 1715 days ago · 36 km deep · 93 km away
  51. 1.849 km SSE of Nelchina, Alaska · 1714 days ago · 26 km deep · 93 km away
  52. 1.527 km S of Eureka Roadhouse, Alaska · 1714 days ago · 27 km deep · 88 km away
  53. 2.249 km SSE of Nelchina, Alaska · 1714 days ago · 35 km deep · 94 km away
  54. 1.630 km SSE of Glacier View, Alaska · 1714 days ago · 25 km deep · 73 km away
  55. 1.558 km WSW of Tatitlek, Alaska · 1714 days ago · 14 km deep · 38 km away
  56. 1.641 km WSW of Tatitlek, Alaska · 1713 days ago · 6 km deep · 20 km away
  57. 2.340 km SSW of Tatitlek, Alaska · 1713 days ago · 20 km deep · 41 km away
  58. 1.616 km SSW of Tatitlek, Alaska · 1713 days ago · 13 km deep · 34 km away
  59. 1.939 km SSW of Tatitlek, Alaska · 1712 days ago · 17 km deep · 41 km away
  60. 1.639 km WNW of Tatitlek, Alaska · 1712 days ago · 3 km deep · 9 km away

The first 60 of 129.

Before

  1. 1.515 km E of Chenega, Alaska · 1738 days ago · 19 km deep · 95 km away
  2. 1.641 km S of Glacier View, Alaska · 1738 days ago · 13 km deep · 66 km away
  3. 2.140 km NW of Valdez, Alaska · 1739 days ago · 8 km deep · 59 km away
  4. 1.720 km NE of Valdez, Alaska · 1739 days ago · 37 km deep · 76 km away · felt by 1
  5. 1.530 km NW of Valdez, Alaska · 1739 days ago · 9 km deep · 53 km away
  6. 2.245 km SSE of Nelchina, Alaska · 1741 days ago · 35 km deep · 91 km away
  7. 2.125 km NW of Valdez, Alaska · 1742 days ago · 15 km deep · 50 km away
  8. 1.829 km SSE of Chickaloon, Alaska · 1742 days ago · 22 km deep · 91 km away
  9. 1.560 km WSW of Tatitlek, Alaska · 1743 days ago · 4 km deep · 39 km away
  10. 1.942 km NNW of Valdez, Alaska · 1743 days ago · 22 km deep · 76 km away
  11. 2.231 km N of Valdez, Alaska · 1743 days ago · 17 km deep · 74 km away
  12. 2.142 km NNW of Valdez, Alaska · 1743 days ago · 15 km deep · 78 km away
  13. 1.747 km SSE of Nelchina, Alaska · 1744 days ago · 13 km deep · 87 km away
  14. 1.535 km NNE of Chenega, Alaska · 1744 days ago · 6 km deep · 66 km away
  15. 1.934 km NNW of Valdez, Alaska · 1745 days ago · 14 km deep · 68 km away
  16. 1.555 km WSW of Tatitlek, Alaska · 1746 days ago · 8 km deep · 28 km away
  17. 1.638 km NW of Valdez, Alaska · 1746 days ago · 14 km deep · 62 km away
  18. 2.136 km NNW of Valdez, Alaska · 1746 days ago · 19 km deep · 66 km away
  19. 1.519 km S of Tatitlek, Alaska · 1746 days ago · 14 km deep · 39 km away
  20. 1.543 km S of Glacier View, Alaska · 1747 days ago · 19 km deep · 60 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021gbeic3c. Read Thu, Sep 24, 2026, 9:21 AM UTC.