Alaska earthquakes

M1.8 earthquake 48 km S of Tolsona, Alaska

A magnitude 1.8 earthquake struck 48 km S of Tolsona, Alaska on Mon, Mar 20, 2017, 3:49 PM AKDT (23:49 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M3.9 40 km WSW of Tonsina, 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, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-03-20 23:49:26 UTC
Depth
21.2 km (13.2 mi), shallow
Epicenter
61.647° N, 146.106° 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
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 65 in the 60 days after this one and 26 in the 30 days before it.

After

  1. 1.913 km SSW of Nelchina, Alaska · 3485 days ago · 25 km deep · 48 km away
  2. 1.646 km W of Tonsina, Alaska · 3485 days ago · 27 km deep · 4 km away
  3. 1.648 km W of Tonsina, Alaska · 3485 days ago · 29 km deep · 4 km away
  4. 2.551 km NW of Valdez, Alaska · 3481 days ago · 2 km deep · 61 km away
  5. 1.611 km NW of Tatitlek, Alaska · 3481 days ago · 15 km deep · 88 km away
  6. 1.637 km SE of Glacier View, Alaska · 3478 days ago · 20 km deep · 55 km away
  7. 1.645 km SSE of Nelchina, Alaska · 3476 days ago · 34 km deep · 17 km away
  8. 2.333 km WNW of Valdez, Alaska · 3476 days ago · 19 km deep · 59 km away
  9. 1.845 km NNW of Valdez, Alaska · 3476 days ago · 19 km deep · 37 km away
  10. 2.145 km NNW of Valdez, Alaska · 3475 days ago · 18 km deep · 31 km away
  11. 1.68 km NNW of Glacier View, Alaska · 3475 days ago · 28 km deep · 89 km away
  12. 2.138 km WNW of Valdez, Alaska · 3475 days ago · 0 km deep · 69 km away · felt by 1
  13. 1.839 km N of Valdez, Alaska · 3475 days ago · 25 km deep · 27 km away
  14. 2.044 km NNW of Valdez, Alaska · 3473 days ago · 20 km deep · 41 km away
  15. 1.946 km SSE of Glacier View, Alaska · 3472 days ago · 18 km deep · 64 km away
  16. 1.949 km N of Valdez, Alaska · 3472 days ago · 28 km deep · 15 km away
  17. 1.837 km NNW of Valdez, Alaska · 3471 days ago · 3 km deep · 30 km away
  18. 2.722 km S of Nelchina, Alaska · 3471 days ago · 28 km deep · 41 km away
  19. 2.144 km SSE of Nelchina, Alaska · 3469 days ago · 9 km deep · 26 km away
  20. 1.529 km NNW of Valdez, Alaska · 3468 days ago · 24 km deep · 35 km away
  21. 1.844 km NNW of Valdez, Alaska · 3468 days ago · 32 km deep · 36 km away
  22. 2.02 km NNE of Glennallen, Alaska · 3468 days ago · 24 km deep · 61 km away
  23. 1.636 km NE of Valdez, Alaska · 3467 days ago · 23 km deep · 34 km away
  24. 1.548 km SSE of Glacier View, Alaska · 3463 days ago · 4 km deep · 78 km away
  25. 1.741 km S of Nelchina, Alaska · 3461 days ago · 20 km deep · 28 km away
  26. 1.534 km N of Valdez, Alaska · 3459 days ago · 21 km deep · 30 km away
  27. 1.7Southern Alaska · 3459 days ago · 15 km deep · 31 km away
  28. 2.646 km SSE of Nelchina, Alaska · 3458 days ago · 16 km deep · 25 km away
  29. 1.68 km NW of Valdez, Alaska · 3457 days ago · 13 km deep · 55 km away
  30. 3.940 km WSW of Tonsina, Alaska · 3457 days ago · 30 km deep · 21 km away · felt by 11 · tsunami flag
  31. 2.417 km NW of Valdez, Alaska · 3457 days ago · 17 km deep · 54 km away
  32. 1.649 km SSE of Nelchina, Alaska · 3456 days ago · 31 km deep · 21 km away
  33. 2.6Southern Alaska · 3455 days ago · 9 km deep · 31 km away
  34. 1.649 km SSE of Nelchina, Alaska · 3455 days ago · 21 km deep · 16 km away
  35. 1.842 km NNW of Valdez, Alaska · 3453 days ago · 20 km deep · 35 km away
  36. 2.423 km WNW of Tatitlek, Alaska · 3452 days ago · 20 km deep · 89 km away
  37. 1.628 km SSW of Glacier View, Alaska · 3452 days ago · 26 km deep · 88 km away
  38. 2.236 km NW of Valdez, Alaska · 3452 days ago · 14 km deep · 45 km away
  39. 1.650 km NNE of Cordova, Alaska · 3449 days ago · 15 km deep · 84 km away
  40. 1.551 km NW of Valdez, Alaska · 3447 days ago · 8 km deep · 58 km away
  41. 1.7Southern Alaska · 3446 days ago · 31 km deep · 38 km away
  42. 2.652 km SSE of Glacier View, Alaska · 3445 days ago · 18 km deep · 78 km away · felt by 1
  43. 2.238 km WNW of Valdez, Alaska · 3444 days ago · 19 km deep · 68 km away
  44. 1.646 km NNW of Valdez, Alaska · 3444 days ago · 31 km deep · 33 km away
  45. 1.641 km E of Valdez, Alaska · 3443 days ago · 26 km deep · 61 km away
  46. 1.545 km N of Valdez, Alaska · 3443 days ago · 22 km deep · 21 km away
  47. 2.235 km NNW of Valdez, Alaska · 3442 days ago · 8 km deep · 40 km away
  48. 2.926 km NW of Eureka Roadhouse, Alaska · 3441 days ago · 25 km deep · 91 km away
  49. 1.511 km WNW of Glacier View, Alaska · 3441 days ago · 35 km deep · 95 km away
  50. 2.047 km N of Valdez, Alaska · 3441 days ago · 18 km deep · 22 km away
  51. 1.545 km N of Valdez, Alaska · 3441 days ago · 29 km deep · 24 km away
  52. 2.946 km NNW of Valdez, Alaska · 3438 days ago · 19 km deep · 37 km away
  53. 1.545 km NNW of Valdez, Alaska · 3438 days ago · 20 km deep · 38 km away
  54. 2.026 km NW of Valdez, Alaska · 3437 days ago · 15 km deep · 54 km away
  55. 1.98 km NE of Silver Springs, Alaska · 3435 days ago · 10 km deep · 66 km away
  56. 2.425 km ESE of Valdez, Alaska · 3432 days ago · 15 km deep · 71 km away · felt by 1
  57. 1.949 km N of Valdez, Alaska · 3432 days ago · 30 km deep · 16 km away
  58. 1.512 km NW of Tatitlek, Alaska · 3431 days ago · 3 km deep · 88 km away
  59. 1.622 km NW of Eureka Roadhouse, Alaska · 3431 days ago · 40 km deep · 86 km away
  60. 1.936 km NNW of Valdez, Alaska · 3428 days ago · 26 km deep · 33 km away

The first 60 of 65.

Before

  1. 1.549 km N of Valdez, Alaska · 3487 days ago · 34 km deep · 15 km away
  2. 2.255 km SSE of Glacier View, Alaska · 3488 days ago · 9 km deep · 72 km away
  3. 1.846 km S of Glacier View, Alaska · 3488 days ago · 13 km deep · 95 km away
  4. 1.635 km NNW of Valdez, Alaska · 3489 days ago · 8 km deep · 37 km away
  5. 1.815 km SW of Eureka Roadhouse, Alaska · 3490 days ago · 34 km deep · 68 km away
  6. 1.549 km N of Valdez, Alaska · 3490 days ago · 30 km deep · 21 km away
  7. 1.645 km SSE of Nelchina, Alaska · 3490 days ago · 37 km deep · 19 km away
  8. 1.613 km SSE of Eureka Roadhouse, Alaska · 3491 days ago · 37 km deep · 53 km away
  9. 2.422 km NNW of Glacier View, Alaska · 3492 days ago · 23 km deep · 96 km away
  10. 1.835 km NNW of Valdez, Alaska · 3495 days ago · 15 km deep · 31 km away · felt by 1
  11. 1.7Southern Alaska · 3496 days ago · 14 km deep · 36 km away
  12. 2.213 km SSE of Eureka Roadhouse, Alaska · 3497 days ago · 26 km deep · 54 km away
  13. 1.545 km N of Valdez, Alaska · 3500 days ago · 34 km deep · 17 km away
  14. 1.510 km SW of Glacier View, Alaska · 3501 days ago · 32 km deep · 90 km away
  15. 1.848 km N of Valdez, Alaska · 3501 days ago · 15 km deep · 20 km away
  16. 1.636 km NW of Valdez, Alaska · 3502 days ago · 6 km deep · 48 km away
  17. 1.718 km NE of Valdez, Alaska · 3503 days ago · 28 km deep · 45 km away
  18. 4.018 km NE of Valdez, Alaska · 3503 days ago · 24 km deep · 43 km away · felt by 19 · tsunami flag
  19. 1.937 km NNW of Valdez, Alaska · 3506 days ago · 14 km deep · 36 km away
  20. 1.847 km SSE of Nelchina, Alaska · 3506 days ago · 27 km deep · 15 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0173n1fy2f (also filed as ak15562824). Read Mon, Oct 5, 2026, 8:12 AM UTC.