M1.8 earthquake 299 km WSW of Adak, Alaska

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Alaska Earthquake Center

Local time

Thu, Aug 27, 2020, 8:48 PM GMT+12

UTC

2020-08-27 08:48:59 UTC

Depth

21.9 km (13.6 mi), shallow

Epicenter

51.113° N, 179.229° E

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

17

After

1. 3.0Rat Islands, Aleutian Islands, AlaskaFri, Aug 28, 7:22 AM GMT+12 · 2226 days ago · 42 km deep · 44 km away
2. 1.8295 km WSW of Adak, AlaskaSat, Aug 29, 5:21 AM GMT+12 · 2225 days ago · 7 km deep · 11 km away
3. 2.0222 km W of Adak, AlaskaFri, Aug 28, 10:38 PM HADT · 2224 days ago · 77 km deep · 90 km away
4. 1.6242 km WSW of Adak, AlaskaSun, Aug 30, 10:53 AM GMT+12 · 2224 days ago · 48 km deep · 59 km away
5. 1.9Rat Islands, Aleutian Islands, AlaskaSun, Aug 30, 10:52 PM GMT+12 · 2223 days ago · 47 km deep · 59 km away
6. 1.7Rat Islands, Aleutian Islands, AlaskaMon, Aug 31, 2:22 AM GMT+12 · 2223 days ago · 19 km deep · 69 km away
7. 3.2Rat Islands, Aleutian Islands, AlaskaMon, Aug 31, 9:51 PM GMT+12 · 2222 days ago · 59 km deep · 89 km away
8. 2.4238 km WSW of Adak, AlaskaMon, Aug 31, 11:59 PM GMT-12 · 2221 days ago · 11 km deep · 65 km away
9. 4.0235 km WSW of Adak, AlaskaTue, Sep 1, 6:00 PM HADT · 2221 days ago · 19 km deep · 64 km away
10. 3.2232 km WSW of Adak, AlaskaTue, Sep 1, 9:43 PM HADT · 2221 days ago · 15 km deep · 67 km away
11. 2.6Rat Islands, Aleutian Islands, AlaskaThu, Sep 3, 10:28 AM GMT+12 · 2220 days ago · 35 km deep · 71 km away
12. 2.1Rat Islands, Aleutian Islands, AlaskaThu, Sep 3, 10:46 PM GMT+12 · 2219 days ago · 116 km deep · 95 km away
13. 3.4Rat Islands, Aleutian Islands, AlaskaSat, Sep 5, 9:07 AM GMT+12 · 2218 days ago · 97 km deep · 91 km away
14. 2.2262 km W of Adak, AlaskaSat, Sep 5, 9:12 PM GMT+12 · 2217 days ago · 82 km deep · 75 km away
15. 2.4237 km WSW of Adak, AlaskaSun, Sep 6, 12:15 AM HADT · 2216 days ago · 13 km deep · 76 km away
16. 4.3238 km WSW of Adak, AlaskaSun, Sep 6, 6:19 AM GMT-12 · 2216 days ago · 47 km deep · 69 km away
17. 2.5238 km WSW of Adak, AlaskaSun, Sep 6, 9:24 AM HADT · 2216 days ago · 12 km deep · 78 km away
18. 4.1235 km WSW of Adak, AlaskaSun, Sep 6, 9:39 AM HADT · 2216 days ago · 40 km deep · 74 km away
19. 2.2238 km WSW of Adak, AlaskaSun, Sep 6, 6:54 AM GMT-12 · 2216 days ago · 15 km deep · 63 km away
20. 1.7277 km W of Adak, AlaskaMon, Sep 7, 8:45 AM GMT+12 · 2216 days ago · 79 km deep · 57 km away
21. 1.9238 km WSW of Adak, AlaskaSun, Sep 6, 1:41 PM HADT · 2216 days ago · 10 km deep · 76 km away
22. 2.0234 km WSW of Adak, AlaskaSun, Sep 6, 1:56 PM HADT · 2216 days ago · 25 km deep · 76 km away
23. 2.7261 km W of Adak, AlaskaMon, Sep 7, 2:56 PM GMT+12 · 2216 days ago · 156 km deep · 90 km away
24. 1.7250 km WSW of Adak, AlaskaTue, Sep 8, 5:51 AM GMT+12 · 2215 days ago · 70 km deep · 57 km away
25. 1.7239 km WSW of Adak, AlaskaTue, Sep 8, 12:54 AM GMT-12 · 2214 days ago · 18 km deep · 61 km away
26. 2.6277 km WSW of Adak, AlaskaWed, Sep 9, 6:09 AM GMT+12 · 2214 days ago · 31 km deep · 22 km away
27. 1.8244 km WSW of Adak, AlaskaTue, Sep 8, 6:36 AM GMT-12 · 2214 days ago · 16 km deep · 63 km away
28. 2.1Rat Islands, Aleutian Islands, AlaskaWed, Sep 9, 11:28 AM GMT+12 · 2214 days ago · 66 km deep · 66 km away
29. 2.0251 km WSW of Adak, AlaskaWed, Sep 9, 8:03 PM GMT+12 · 2213 days ago · 58 km deep · 53 km away
30. 2.5Rat Islands, Aleutian Islands, AlaskaWed, Sep 9, 9:52 PM GMT+12 · 2213 days ago · 111 km deep · 86 km away
31. 3.0259 km W of Adak, AlaskaThu, Sep 10, 4:19 PM GMT+12 · 2213 days ago · 146 km deep · 92 km away
32. 2.1239 km WSW of Adak, AlaskaThu, Sep 10, 2:26 PM GMT-12 · 2212 days ago · 8 km deep · 71 km away
33. 1.7265 km W of Adak, AlaskaSat, Sep 12, 6:12 AM GMT+12 · 2211 days ago · 10 km deep · 88 km away
34. 3.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 12, 6:42 PM GMT+12 · 2211 days ago · 144 km deep · 92 km away
35. 3.1Rat Islands, Aleutian Islands, AlaskaSun, Sep 13, 12:06 AM GMT+12 · 2210 days ago · 85 km deep · 71 km away
36. 2.5268 km W of Adak, AlaskaMon, Sep 14, 9:16 PM GMT+12 · 2208 days ago · 110 km deep · 80 km away
37. 3.0260 km W of Adak, AlaskaTue, Sep 15, 1:29 PM GMT+12 · 2208 days ago · 123 km deep · 76 km away
38. 1.7269 km W of Adak, AlaskaWed, Sep 16, 4:16 AM GMT+12 · 2207 days ago · 64 km deep · 46 km away
39. 2.9259 km W of Adak, AlaskaWed, Sep 16, 11:12 AM GMT+12 · 2207 days ago · 189 km deep · 95 km away
40. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Sep 17, 7:55 AM GMT+12 · 2206 days ago · 59 km deep · 42 km away
41. 2.1Rat Islands, Aleutian Islands, AlaskaFri, Sep 18, 6:22 AM GMT+12 · 2205 days ago · 79 km deep · 78 km away
42. 1.8246 km WSW of Adak, AlaskaSat, Sep 19, 1:46 PM GMT+12 · 2204 days ago · 45 km deep · 53 km away
43. 2.0Rat Islands, Aleutian Islands, AlaskaSat, Sep 19, 5:08 PM GMT+12 · 2204 days ago · 97 km deep · 81 km away
44. 2.1Rat Islands, Aleutian Islands, AlaskaSat, Sep 19, 9:37 PM GMT+12 · 2203 days ago · 49 km deep · 66 km away
45. 1.7213 km WSW of Adak, AlaskaSat, Sep 19, 1:51 AM HADT · 2203 days ago · 52 km deep · 88 km away
46. 3.4217 km WSW of Adak, AlaskaSat, Sep 19, 4:07 PM HADT · 2203 days ago · 10 km deep · 82 km away
47. 2.9201 km WSW of Adak, AlaskaTue, Sep 22, 12:11 AM HADT · 2200 days ago · 74 km deep · 99 km away
48. 1.9295 km WSW of Adak, AlaskaWed, Sep 23, 4:40 AM GMT+12 · 2200 days ago · 50 km deep · 32 km away
49. 2.0Rat Islands, Aleutian Islands, AlaskaWed, Sep 23, 2:30 PM GMT+12 · 2200 days ago · 25 km deep · 16 km away
50. 3.7240 km WSW of Adak, AlaskaThu, Sep 24, 7:58 AM GMT+12 · 2199 days ago · 19 km deep · 64 km away
51. 1.8244 km WSW of Adak, AlaskaThu, Sep 24, 8:20 AM GMT+12 · 2199 days ago · 26 km deep · 61 km away
52. 1.6241 km WSW of Adak, AlaskaThu, Sep 24, 8:56 AM GMT+12 · 2199 days ago · 13 km deep · 63 km away
53. 1.6Rat Islands, Aleutian Islands, AlaskaThu, Sep 24, 1:18 PM GMT+12 · 2199 days ago · 40 km deep · 44 km away
54. 2.0265 km W of Adak, AlaskaFri, Sep 25, 12:48 AM GMT+12 · 2198 days ago · 91 km deep · 77 km away
55. 1.8246 km WSW of Adak, AlaskaFri, Sep 25, 5:51 AM GMT+12 · 2198 days ago · 26 km deep · 56 km away
56. 3.0252 km W of Adak, AlaskaFri, Sep 25, 11:48 AM GMT+12 · 2198 days ago · 177 km deep · 99 km away
57. 2.2Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 8:31 AM GMT+12 · 2197 days ago · 42 km deep · 89 km away
58. 2.0299 km WSW of Adak, AlaskaSat, Sep 26, 9:58 AM GMT+12 · 2197 days ago · 19 km deep · 7 km away
59. 1.7295 km WSW of Adak, AlaskaSat, Sep 26, 12:59 PM GMT+12 · 2197 days ago · 17 km deep · 5 km away
60. 1.7Rat Islands, Aleutian Islands, AlaskaSat, Sep 26, 1:45 PM GMT+12 · 2197 days ago · 28 km deep · 26 km away

The first 60 of 117.

Before

1. 4.6294 km WSW of Adak, AlaskaThu, Aug 27, 7:14 PM GMT+12 · 2227 days ago · 35 km deep · 11 km away
2. 1.8Rat Islands, Aleutian Islands, AlaskaThu, Aug 27, 6:35 PM GMT+12 · 2227 days ago · 57 km deep · 76 km away
3. 2.2229 km W of Adak, AlaskaWed, Aug 26, 5:44 PM HADT · 2227 days ago · 94 km deep · 95 km away
4. 3.1Rat Islands, Aleutian Islands, AlaskaThu, Aug 27, 10:49 AM GMT+12 · 2227 days ago · 32 km deep · 74 km away
5. 2.0Rat Islands, Aleutian Islands, AlaskaThu, Aug 27, 6:24 AM GMT+12 · 2227 days ago · 69 km deep · 60 km away
6. 1.8Rat Islands, Aleutian Islands, AlaskaWed, Aug 26, 11:56 PM GMT+12 · 2227 days ago · 87 km deep · 83 km away
7. 1.5Rat Islands, Aleutian Islands, AlaskaWed, Aug 26, 5:55 PM GMT+12 · 2228 days ago · 34 km deep · 46 km away
8. 1.6Rat Islands, Aleutian Islands, AlaskaWed, Aug 26, 2:20 PM GMT+12 · 2228 days ago · 102 km deep · 83 km away
9. 1.7236 km WSW of Adak, AlaskaTue, Aug 25, 7:24 AM HADT · 2228 days ago · 14 km deep · 67 km away
10. 3.8211 km WSW of Adak, AlaskaTue, Aug 25, 12:55 AM HADT · 2228 days ago · 15 km deep · 100 km away
11. 2.1Rat Islands, Aleutian Islands, AlaskaTue, Aug 25, 11:42 AM GMT+12 · 2229 days ago · 74 km deep · 84 km away
12. 1.9249 km W of Adak, AlaskaTue, Aug 25, 12:32 AM GMT+12 · 2229 days ago · 60 km deep · 58 km away
13. 1.8202 km WSW of Adak, AlaskaMon, Aug 24, 2:02 AM HADT · 2229 days ago · 16 km deep · 97 km away
14. 2.8245 km W of Adak, AlaskaSun, Aug 23, 4:43 AM GMT+12 · 2231 days ago · 72 km deep · 64 km away
15. 1.9245 km WSW of Adak, AlaskaSun, Aug 23, 1:08 AM GMT+12 · 2231 days ago · 26 km deep · 54 km away
16. 2.1Rat Islands, Aleutian Islands, AlaskaSat, Aug 22, 4:16 PM GMT+12 · 2232 days ago · 89 km deep · 84 km away
17. 2.7250 km W of Adak, AlaskaSat, Aug 22, 6:47 AM GMT+12 · 2232 days ago · 186 km deep · 93 km away
18. 1.5Rat Islands, Aleutian Islands, AlaskaFri, Aug 21, 7:23 PM GMT+12 · 2233 days ago · 22 km deep · 39 km away
19. 2.3290 km W of Adak, AlaskaFri, Aug 21, 6:42 PM GMT+12 · 2233 days ago · 84 km deep · 64 km away
20. 1.8Rat Islands, Aleutian Islands, AlaskaFri, Aug 21, 6:38 PM GMT+12 · 2233 days ago · 46 km deep · 43 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak020b12167a. Read Thu, Oct 1, 2026, 7:04 PM UTC.