Alaska earthquakes

M3.7 earthquake 11 km ESE of Ferry, Alaska

A magnitude 3.7 earthquake struck 11 km ESE of Ferry, Alaska on Sun, Feb 14, 2021, 10:47 AM AKST (19:47 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M5.5 28 km SE of Cantwell, Alaska. This one was a foreshock.

Healy forecastMore 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
3.7 (ml), minor
Local time
UTC
2021-02-14 19:47:05 UTC
Depth
11.9 km (7.4 mi), shallow
Epicenter
63.979° N, 148.907° W
Region
Alaska
Felt reports
19
Strongest shaking
V, moderate 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
V, moderate shaking
Peak ground acceleration
924.0% of gravity
Peak ground velocity
2.1 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

19 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Reverse (thrust)
Moment magnitude
3.7 Mwr
Nodal plane 1
Strike 46°, dip 51°, rake 73°
Nodal plane 2
Strike 252°, dip 41°, rake 110°

How well it is located

Reviewed by a seismologist.

Stations used
213

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 87 in the 60 days after this one and 42 in the 30 days before it.

After

  1. 1.612 km NE of Healy, Alaska · 2053 days ago · 13 km deep · 6 km away
  2. 3.09 km ESE of Ferry, Alaska · 2053 days ago · 11 km deep · 2 km away · felt by 1
  3. 2.712 km NNE of Healy, Alaska · 2053 days ago · 8 km deep · 3 km away · felt by 1
  4. 1.510 km NNE of Healy, Alaska · 2053 days ago · 6 km deep · 4 km away
  5. 1.612 km NNE of Healy, Alaska · 2053 days ago · 3 km deep · 3 km away
  6. 3.010 km ESE of Ferry, Alaska · 2052 days ago · 11 km deep · 2 km away
  7. 2.017 km W of Healy, Alaska · 2050 days ago · 115 km deep · 25 km away
  8. 2.919 km SW of Salcha, Alaska · 2049 days ago · 13 km deep · 95 km away · felt by 1
  9. 1.860 km ENE of Cantwell, Alaska · 2049 days ago · 16 km deep · 75 km away
  10. 1.719 km E of Ferry, Alaska · 2049 days ago · 3 km deep · 9 km away
  11. 1.651 km ENE of Cantwell, Alaska · 2048 days ago · 2 km deep · 70 km away · felt by 1
  12. 2.645 km ENE of Cantwell, Alaska · 2047 days ago · 7 km deep · 66 km away
  13. 2.150 km E of Denali National Park, Alaska · 2046 days ago · 10 km deep · 100 km away
  14. 1.614 km S of Ester, Alaska · 2045 days ago · 17 km deep · 93 km away
  15. 1.544 km WSW of Clear, Alaska, Alaska · 2045 days ago · 6 km deep · 60 km away
  16. 1.819 km NNE of Four Mile Road, Alaska · 2045 days ago · 21 km deep · 88 km away
  17. 1.531 km SSW of Cantwell, Alaska · 2043 days ago · 81 km deep · 95 km away
  18. 1.636 km W of McKinley Park, Alaska · 2043 days ago · 123 km deep · 47 km away
  19. 1.510 km NNE of Cantwell, Alaska · 2043 days ago · 11 km deep · 56 km away
  20. 2.479 km ESE of McKinley Park, Alaska · 2041 days ago · 72 km deep · 90 km away
  21. 1.613 km E of Cantwell, Alaska · 2040 days ago · 93 km deep · 64 km away
  22. 1.633 km WSW of Cantwell, Alaska · 2039 days ago · 101 km deep · 88 km away
  23. 2.516 km NNW of Four Mile Road, Alaska · 2038 days ago · 22 km deep · 86 km away
  24. 1.517 km NNW of Four Mile Road, Alaska · 2038 days ago · 22 km deep · 87 km away
  25. 1.720 km NE of Healy, Alaska · 2037 days ago · 4 km deep · 11 km away
  26. 1.530 km SW of Cantwell, Alaska · 2034 days ago · 85 km deep · 89 km away
  27. 2.821 km NE of Healy, Alaska · 2034 days ago · 8 km deep · 14 km away · felt by 1
  28. 1.533 km ESE of McKinley Park, Alaska · 2034 days ago · 83 km deep · 48 km away
  29. 2.0Central Alaska · 2034 days ago · 124 km deep · 62 km away
  30. 1.664 km E of Denali National Park, Alaska · 2032 days ago · 3 km deep · 88 km away
  31. 1.628 km NNE of Four Mile Road, Alaska · 2032 days ago · 17 km deep · 97 km away
  32. 1.614 km NW of Four Mile Road, Alaska · 2029 days ago · 17 km deep · 83 km away
  33. 1.68 km E of Healy, Alaska · 2028 days ago · 105 km deep · 14 km away
  34. 1.537 km WSW of McKinley Park, Alaska · 2028 days ago · 118 km deep · 53 km away
  35. 1.856 km W of Cantwell, Alaska · 2027 days ago · 100 km deep · 90 km away
  36. 2.534 km W of Clear, Alaska, Alaska · 2027 days ago · 18 km deep · 58 km away
  37. 2.523 km WSW of McKinley Park, Alaska · 2027 days ago · 4 km deep · 40 km away
  38. 2.022 km WNW of Anderson, Alaska · 2025 days ago · 21 km deep · 57 km away
  39. 1.532 km WSW of Cantwell, Alaska · 2024 days ago · 102 km deep · 80 km away
  40. 1.582 km ESE of McKinley Park, Alaska · 2024 days ago · 3 km deep · 92 km away
  41. 1.523 km W of McKinley Park, Alaska · 2024 days ago · 104 km deep · 38 km away
  42. 2.111 km SSW of Ester, Alaska · 2023 days ago · 1 km deep · 94 km away
  43. 2.525 km NNE of Four Mile Road, Alaska · 2023 days ago · 6 km deep · 95 km away
  44. 2.7Central Alaska · 2023 days ago · 20 km deep · 95 km away
  45. 1.7Central Alaska · 2022 days ago · 96 km deep · 96 km away
  46. 2.448 km WSW of Clear, Alaska, Alaska · 2020 days ago · 9 km deep · 60 km away
  47. 3.37 km NNE of Cantwell, Alaska · 2019 days ago · 7 km deep · 58 km away · felt by 1
  48. 2.040 km WSW of Healy, Alaska · 2019 days ago · 39 km deep · 49 km away
  49. 1.521 km WNW of Cantwell, Alaska · 2019 days ago · 91 km deep · 57 km away
  50. 1.947 km WSW of Cantwell, Alaska · 2016 days ago · 91 km deep · 98 km away
  51. 1.914 km NE of Healy, Alaska · 2016 days ago · 114 km deep · 6 km away
  52. 1.672 km WSW of Delta Junction, Alaska · 2014 days ago · 1 km deep · 97 km away
  53. 1.722 km WSW of McKinley Park, Alaska · 2014 days ago · 115 km deep · 42 km away
  54. 1.822 km W of McKinley Park, Alaska · 2013 days ago · 108 km deep · 35 km away
  55. 2.326 km SSW of Cantwell, Alaska · 2012 days ago · 85 km deep · 91 km away
  56. 2.727 km SW of Cantwell, Alaska · 2011 days ago · 83 km deep · 88 km away
  57. 1.562 km W of Cantwell, Alaska · 2011 days ago · 115 km deep · 83 km away
  58. 1.664 km WSW of Ferry, Alaska · 2011 days ago · 10 km deep · 72 km away
  59. 1.810 km SW of Cantwell, Alaska · 2011 days ago · 85 km deep · 74 km away
  60. 1.789 km ESE of McKinley Park, Alaska · 2009 days ago · 72 km deep · 99 km away

The first 60 of 87.

Before

  1. 2.38 km SE of Ferry, Alaska · 2053 days ago · 9 km deep · 4 km away
  2. 2.19 km ESE of Ferry, Alaska · 2053 days ago · 8 km deep · 2 km away
  3. 1.539 km W of Four Mile Road, Alaska · 2054 days ago · 19 km deep · 82 km away
  4. 1.552 km WSW of McKinley Park, Alaska · 2054 days ago · 133 km deep · 64 km away
  5. 1.514 km NE of Healy, Alaska · 2055 days ago · 112 km deep · 9 km away
  6. 1.615 km W of Healy, Alaska · 2055 days ago · 113 km deep · 24 km away
  7. 1.556 km W of Cantwell, Alaska · 2055 days ago · 131 km deep · 79 km away
  8. 1.75 km SSE of Healy, Alaska · 2056 days ago · 8 km deep · 18 km away
  9. 2.177 km ESE of McKinley Park, Alaska · 2056 days ago · 3 km deep · 88 km away
  10. 2.215 km E of Clear, Alaska, Alaska · 2057 days ago · 10 km deep · 28 km away
  11. 2.14 km SE of Healy, Alaska · 2058 days ago · 8 km deep · 17 km away
  12. 1.580 km E of Cantwell, Alaska · 2059 days ago · 9 km deep · 92 km away
  13. 2.061 km WSW of Clear, Alaska, Alaska · 2059 days ago · 15 km deep · 74 km away
  14. 1.979 km ESE of McKinley Park, Alaska · 2059 days ago · 4 km deep · 90 km away
  15. 2.12 km SE of Healy, Alaska · 2060 days ago · 6 km deep · 15 km away · felt by 1
  16. 1.7Central Alaska · 2061 days ago · 10 km deep · 88 km away
  17. 1.916 km E of Ferry, Alaska · 2062 days ago · 3 km deep · 6 km away
  18. 1.722 km ENE of Nenana, Alaska · 2062 days ago · 15 km deep · 71 km away
  19. 1.75 km WNW of Healy, Alaska · 2062 days ago · 118 km deep · 14 km away
  20. 1.523 km ENE of McKinley Park, Alaska · 2063 days ago · 102 km deep · 26 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02122qrxre (also filed as us6000dhn7). Read Tue, Sep 29, 2026, 6:28 PM UTC.