M1.8 earthquake 38 km WSW of Tyonek, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Mon, Aug 17, 2020, 6:38 PM AKDT

UTC

2020-08-18 02:38:17 UTC

Depth

83.7 km (52.0 mi), intermediate-depth

Epicenter

60.934° N, 151.800° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

90

• Nikiski, AlaskaPopulation 4,493. Forecast39 kmNW
• Anchorage, AlaskaPopulation 289,600. Forecast107 kmWSW

After

1. 1.656 km W of Ninilchik, AlaskaMon, Aug 17, 11:20 PM AKDT · 2236 days ago · 99 km deep · 99 km away
2. 1.866 km W of Tyonek, AlaskaTue, Aug 18, 3:24 AM AKDT · 2236 days ago · 117 km deep · 31 km away
3. 1.7Southern AlaskaTue, Aug 18, 4:51 AM AKDT · 2236 days ago · 82 km deep · 30 km away
4. 1.523 km WSW of Susitna, AlaskaTue, Aug 18, 8:43 PM AKDT · 2235 days ago · 62 km deep · 75 km away
5. 2.76 km ENE of Nikiski, AlaskaWed, Aug 19, 1:09 AM AKDT · 2235 days ago · 62 km deep · 41 km away · felt by 1
6. 1.870 km NE of Port Alsworth, AlaskaWed, Aug 19, 2:14 AM AKDT · 2235 days ago · 199 km deep · 93 km away
7. 1.62 km NE of Susitna, AlaskaWed, Aug 19, 2:53 PM AKDT · 2234 days ago · 50 km deep · 99 km away
8. 1.649 km WNW of Ninilchik, AlaskaThu, Aug 20, 8:41 PM AKDT · 2233 days ago · 98 km deep · 96 km away
9. 1.541 km SW of Skwentna, AlaskaFri, Aug 21, 1:48 AM AKDT · 2233 days ago · 105 km deep · 89 km away
10. 2.125 km NE of Point Possession, AlaskaFri, Aug 21, 9:37 AM AKDT · 2232 days ago · 41 km deep · 82 km away
11. 2.158 km NW of Ninilchik, AlaskaFri, Aug 21, 5:09 PM AKDT · 2232 days ago · 111 km deep · 73 km away
12. 2.154 km W of Salamatof, AlaskaFri, Aug 21, 10:55 PM AKDT · 2232 days ago · 92 km deep · 53 km away
13. 1.858 km WNW of Ninilchik, AlaskaSat, Aug 22, 4:33 AM AKDT · 2232 days ago · 107 km deep · 84 km away
14. 1.769 km WNW of Ninilchik, AlaskaSat, Aug 22, 2:44 PM AKDT · 2231 days ago · 118 km deep · 100 km away
15. 2.444 km WNW of Clam Gulch, AlaskaSat, Aug 22, 6:10 PM AKDT · 2231 days ago · 83 km deep · 61 km away
16. 2.617 km SE of Kasilof, AlaskaSun, Aug 23, 8:02 AM AKDT · 2230 days ago · 59 km deep · 88 km away
17. 1.823 km WSW of Point MacKenzie, AlaskaSun, Aug 23, 4:23 PM AKDT · 2230 days ago · 45 km deep · 86 km away
18. 2.225 km E of Funny River, AlaskaMon, Aug 24, 3:37 AM AKDT · 2230 days ago · 38 km deep · 94 km away
19. 1.563 km WNW of Nikiski, AlaskaMon, Aug 24, 5:13 PM AKDT · 2229 days ago · 118 km deep · 29 km away
20. 1.636 km NNW of Beluga, AlaskaMon, Aug 24, 7:17 PM AKDT · 2229 days ago · 65 km deep · 66 km away
21. 1.542 km SSW of Skwentna, AlaskaTue, Aug 25, 1:08 AM AKDT · 2229 days ago · 99 km deep · 82 km away
22. 1.68 km SSE of Tyonek, AlaskaTue, Aug 25, 3:28 PM AKDT · 2228 days ago · 74 km deep · 39 km away
23. 3.120 km ESE of Kasilof, AlaskaTue, Aug 25, 3:41 PM AKDT · 2228 days ago · 66 km deep · 86 km away · felt by 1
24. 1.54 km W of Point Possession, AlaskaWed, Aug 26, 11:13 PM AKDT · 2227 days ago · 49 km deep · 55 km away
25. 1.815 km ESE of Clam Gulch, AlaskaWed, Aug 26, 11:55 PM AKDT · 2227 days ago · 61 km deep · 93 km away
26. 1.857 km WNW of Ninilchik, AlaskaThu, Aug 27, 12:45 PM AKDT · 2226 days ago · 92 km deep · 86 km away
27. 2.620 km SSW of Susitna, AlaskaThu, Aug 27, 3:21 PM AKDT · 2226 days ago · 60 km deep · 78 km away · felt by 1
28. 2.129 km WNW of Beluga, AlaskaThu, Aug 27, 5:33 PM AKDT · 2226 days ago · 76 km deep · 37 km away
29. 1.633 km WNW of Salamatof, AlaskaFri, Aug 28, 4:06 AM AKDT · 2226 days ago · 77 km deep · 27 km away
30. 1.939 km W of Tyonek, AlaskaFri, Aug 28, 8:16 PM AKDT · 2225 days ago · 82 km deep · 10 km away
31. 1.537 km WSW of Salamatof, AlaskaSat, Aug 29, 6:19 AM AKDT · 2224 days ago · 87 km deep · 50 km away
32. 1.52 km NNE of Funny River, AlaskaSat, Aug 29, 9:35 AM AKDT · 2224 days ago · 46 km deep · 74 km away
33. 1.551 km SW of Skwentna, AlaskaSat, Aug 29, 2:36 PM AKDT · 2224 days ago · 96 km deep · 76 km away
34. 1.723 km WNW of Susitna, AlaskaSat, Aug 29, 11:48 PM AKDT · 2224 days ago · 66 km deep · 86 km away
35. 2.419 km ESE of Kasilof, AlaskaSun, Aug 30, 8:46 AM AKDT · 2223 days ago · 59 km deep · 85 km away
36. 1.551 km W of Salamatof, AlaskaSun, Aug 30, 11:16 AM AKDT · 2223 days ago · 86 km deep · 50 km away
37. 1.67 km E of Ninilchik, AlaskaMon, Aug 31, 1:01 AM AKDT · 2223 days ago · 43 km deep · 100 km away
38. 2.416 km NW of Susitna, AlaskaMon, Aug 31, 2:51 AM AKDT · 2223 days ago · 61 km deep · 98 km away
39. 1.638 km W of Tyonek, AlaskaMon, Aug 31, 7:59 AM AKDT · 2222 days ago · 83 km deep · 8 km away
40. 1.940 km WNW of Ninilchik, AlaskaMon, Aug 31, 12:23 PM AKDT · 2222 days ago · 92 km deep · 91 km away
41. 1.6Southern AlaskaMon, Aug 31, 2:32 PM AKDT · 2222 days ago · 86 km deep · 33 km away
42. 1.59 km SSE of Kasilof, AlaskaMon, Aug 31, 3:39 PM AKDT · 2222 days ago · 57 km deep · 82 km away
43. 1.642 km NW of Ninilchik, AlaskaTue, Sep 1, 12:40 AM AKDT · 2222 days ago · 76 km deep · 68 km away
44. 1.551 km WSW of Salamatof, AlaskaTue, Sep 1, 12:52 AM AKDT · 2222 days ago · 87 km deep · 54 km away
45. 1.721 km ESE of Clam Gulch, AlaskaTue, Sep 1, 6:02 AM AKDT · 2221 days ago · 46 km deep · 97 km away
46. 1.615 km ESE of Point Possession, AlaskaTue, Sep 1, 3:20 PM AKDT · 2221 days ago · 10 km deep · 75 km away
47. 1.616 km SE of Kasilof, AlaskaTue, Sep 1, 6:14 PM AKDT · 2221 days ago · 58 km deep · 88 km away
48. 1.620 km ENE of Beluga, AlaskaWed, Sep 2, 3:34 AM AKDT · 2221 days ago · 44 km deep · 65 km away
49. 1.548 km W of Kalifornsky, AlaskaWed, Sep 2, 10:36 AM AKDT · 2220 days ago · 80 km deep · 55 km away
50. 1.760 km SW of Skwentna, AlaskaWed, Sep 2, 1:53 PM AKDT · 2220 days ago · 124 km deep · 78 km away
51. 1.540 km NW of Beluga, AlaskaWed, Sep 2, 10:14 PM AKDT · 2220 days ago · 73 km deep · 54 km away
52. 1.87 km ESE of Kalifornsky, AlaskaThu, Sep 3, 3:01 AM AKDT · 2220 days ago · 44 km deep · 69 km away
53. 1.534 km W of Salamatof, AlaskaThu, Sep 3, 2:44 PM AKDT · 2219 days ago · 77 km deep · 41 km away
54. 1.619 km NNW of Nikiski, AlaskaFri, Sep 4, 12:58 AM AKDT · 2219 days ago · 59 km deep · 21 km away
55. 1.725 km NW of Cooper Landing, AlaskaFri, Sep 4, 10:10 AM AKDT · 2218 days ago · 40 km deep · 96 km away
56. 1.610 km SW of Susitna, AlaskaSat, Sep 5, 3:25 AM AKDT · 2218 days ago · 52 km deep · 86 km away
57. 2.033 km W of Nikiski, AlaskaSat, Sep 5, 4:10 PM AKDT · 2217 days ago · 73 km deep · 21 km away
58. 2.928 km NNW of Beluga, AlaskaSat, Sep 5, 11:39 PM AKDT · 2217 days ago · 70 km deep · 52 km away
59. 1.957 km WNW of Clam Gulch, AlaskaSun, Sep 6, 6:05 AM AKDT · 2216 days ago · 89 km deep · 62 km away
60. 1.966 km WNW of Beluga, AlaskaSun, Sep 6, 10:49 AM AKDT · 2216 days ago · 124 km deep · 53 km away

The first 60 of at least 199.

Before

1. 1.69 km NNE of Ridgeway, AlaskaMon, Aug 17, 12:45 PM AKDT · 2236 days ago · 15 km deep · 54 km away
2. 1.668 km W of Tyonek, AlaskaSun, Aug 16, 10:42 PM AKDT · 2237 days ago · 109 km deep · 35 km away
3. 1.522 km NNE of Beluga, AlaskaSun, Aug 16, 10:44 AM AKDT · 2237 days ago · 59 km deep · 64 km away
4. 1.577 km ENE of Port Alsworth, AlaskaSun, Aug 16, 6:59 AM AKDT · 2237 days ago · 132 km deep · 84 km away
5. 1.65 km N of Point Possession, AlaskaSat, Aug 15, 7:24 PM AKDT · 2238 days ago · 50 km deep · 60 km away
6. 1.829 km WNW of Kalifornsky, AlaskaSat, Aug 15, 4:21 PM AKDT · 2238 days ago · 72 km deep · 50 km away
7. 1.58 km SE of Nikiski, AlaskaSat, Aug 15, 6:15 AM AKDT · 2238 days ago · 61 km deep · 48 km away
8. 2.134 km WNW of Nikiski, AlaskaFri, Aug 14, 9:19 PM AKDT · 2239 days ago · 77 km deep · 21 km away
9. 1.730 km NW of Susitna, AlaskaFri, Aug 14, 9:23 AM AKDT · 2239 days ago · 63 km deep · 99 km away
10. 2.021 km N of Beluga, AlaskaFri, Aug 14, 7:48 AM AKDT · 2239 days ago · 64 km deep · 56 km away
11. 1.759 km WNW of Nikiski, AlaskaFri, Aug 14, 6:11 AM AKDT · 2239 days ago · 97 km deep · 30 km away
12. 1.82 km S of Kasilof, AlaskaFri, Aug 14, 2:18 AM AKDT · 2240 days ago · 59 km deep · 75 km away
13. 1.917 km ESE of Clam Gulch, AlaskaThu, Aug 13, 11:45 PM AKDT · 2240 days ago · 62 km deep · 94 km away
14. 1.769 km WNW of Nikiski, AlaskaWed, Aug 12, 3:29 PM AKDT · 2241 days ago · 127 km deep · 37 km away
15. 1.7Kenai Peninsula, AlaskaWed, Aug 12, 1:15 PM AKDT · 2241 days ago · 73 km deep · 37 km away
16. 1.510 km NW of Beluga, AlaskaWed, Aug 12, 1:39 AM AKDT · 2242 days ago · 61 km deep · 42 km away
17. 2.218 km NNE of Sterling, AlaskaTue, Aug 11, 8:49 PM AKDT · 2242 days ago · 48 km deep · 69 km away
18. 1.515 km WSW of Anchorage, AlaskaTue, Aug 11, 12:11 PM AKDT · 2242 days ago · 41 km deep · 92 km away
19. 2.214 km WSW of Anchorage, AlaskaTue, Aug 11, 10:32 AM AKDT · 2242 days ago · 42 km deep · 93 km away · felt by 1
20. 2.872 km WNW of Nikiski, AlaskaMon, Aug 10, 5:20 PM AKDT · 2243 days ago · 128 km deep · 36 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0202y4pm5d0. Read Fri, Oct 2, 2026, 12:40 AM UTC.