Alaska earthquakes

M1.9 earthquake 211 km SSW of Adak, Alaska

A magnitude 1.9 earthquake struck 211 km SSW of Adak, Alaska on Fri, Jul 30, 2021, 2:59 AM HADT (11:59 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.9 177 km SSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2021-07-30 11:59:27 UTC
Depth
25.5 km (15.8 mi), shallow
Epicenter
50.252° N, 178.208° 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
24

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.5168 km SSW of Adak, Alaska · 1890 days ago · 10 km deep · 43 km away
  2. 2.1226 km SSW of Adak, Alaska · 1887 days ago · 20 km deep · 37 km away
  3. 2.0137 km SW of Adak, Alaska · 1886 days ago · 26 km deep · 94 km away
  4. 3.2198 km S of Adak, Alaska · 1877 days ago · 10 km deep · 99 km away
  5. 1.7136 km SW of Adak, Alaska · 1877 days ago · 26 km deep · 97 km away
  6. 1.7134 km SW of Adak, Alaska · 1877 days ago · 18 km deep · 92 km away
  7. 1.8134 km SW of Adak, Alaska · 1877 days ago · 26 km deep · 98 km away
  8. 1.5137 km SSW of Adak, Alaska · 1873 days ago · 26 km deep · 74 km away
  9. 1.9241 km S of Adak, Alaska · 1872 days ago · 12 km deep · 98 km away
  10. 1.7209 km S of Adak, Alaska · 1872 days ago · 21 km deep · 87 km away
  11. 3.4200 km SSW of Adak, Alaska · 1872 days ago · 10 km deep · 69 km away
  12. 1.9156 km WSW of Adak, Alaska · 1872 days ago · 17 km deep · 100 km away
  13. 2.1186 km SSW of Adak, Alaska · 1870 days ago · 26 km deep · 38 km away
  14. 2.0183 km S of Adak, Alaska · 1861 days ago · 25 km deep · 81 km away
  15. 2.8239 km SSW of Adak, Alaska · 1858 days ago · 10 km deep · 28 km away
  16. 2.1147 km SW of Adak, Alaska · 1851 days ago · 26 km deep · 84 km away
  17. 3.4204 km SSW of Adak, Alaska · 1845 days ago · 10 km deep · 15 km away
  18. 2.0191 km WSW of Adak, Alaska · 1837 days ago · 10 km deep · 100 km away
  19. 3.9177 km SSW of Adak, Alaska · 1833 days ago · 10 km deep · 34 km away

Before

  1. 1.9176 km SSW of Adak, Alaska · 1893 days ago · 26 km deep · 36 km away
  2. 1.8164 km S of Adak, Alaska · 1896 days ago · 17 km deep · 98 km away
  3. 2.7141 km SW of Adak, Alaska · 1896 days ago · 35 km deep · 99 km away
  4. 3.4219 km SSW of Adak, Alaska · 1896 days ago · 43 km deep · 51 km away
  5. 2.1242 km SW of Adak, Alaska · 1899 days ago · 11 km deep · 34 km away
  6. 1.9170 km SSW of Adak, Alaska · 1899 days ago · 26 km deep · 72 km away
  7. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1902 days ago · 18 km deep · 76 km away
  8. 2.7135 km SW of Adak, Alaska · 1909 days ago · 26 km deep · 94 km away
  9. 1.9254 km SW of Adak, Alaska · 1910 days ago · 27 km deep · 56 km away
  10. 1.5142 km SW of Adak, Alaska · 1911 days ago · 42 km deep · 85 km away
  11. 2.9262 km SW of Adak, Alaska · 1920 days ago · 10 km deep · 76 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219p5aoxl. Read Mon, Oct 5, 2026, 1:53 AM UTC.