Alaska earthquakes

M2.7 earthquake 202 km SE of Chignik, Alaska

A magnitude 2.7 earthquake struck 202 km SE of Chignik, Alaska on Thu, Jul 18, 2024, 10:16 AM AKDT (18:16 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M4.7 143 km SE of Perryville, 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
2.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2024-07-18 18:16:56 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
54.866° N, 156.424° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.7ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.6ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.085 · 18 stations

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
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.6200 km SE of Chignik, Alaska · 809 days ago · 5 km deep · 2 km away
  2. 3.5141 km SE of Perryville, Alaska · 804 days ago · 9 km deep · 76 km away · felt by 1
  3. 4.7143 km SE of Perryville, Alaska · 804 days ago · 10 km deep · 73 km away
  4. 3.2164 km SE of Perryville, Alaska · 803 days ago · 4 km deep · 50 km away
  5. 2.0158 km SE of Perryville, Alaska · 803 days ago · 12 km deep · 55 km away
  6. 2.2174 km SE of Perryville, Alaska · 803 days ago · 12 km deep · 43 km away
  7. 2.2162 km SE of Perryville, Alaska · 802 days ago · 5 km deep · 53 km away
  8. 2.6149 km SE of Perryville, Alaska · 798 days ago · 19 km deep · 59 km away
  9. 3.0148 km SE of Chignik, Alaska · 791 days ago · 3 km deep · 55 km away
  10. 2.4156 km SE of Perryville, Alaska · 789 days ago · 22 km deep · 66 km away
  11. 2.5166 km SSE of Perryville, Alaska · 788 days ago · 15 km deep · 87 km away
  12. 2.3215 km SE of Chignik, Alaska · 788 days ago · 5 km deep · 15 km away
  13. 2.4162 km SE of Perryville, Alaska · 788 days ago · 4 km deep · 54 km away
  14. 2.8216 km SE of Perryville, Alaska · 777 days ago · 12 km deep · 31 km away
  15. 3.3214 km SE of Perryville, Alaska · 774 days ago · 27 km deep · 47 km away
  16. 3.1202 km SE of Perryville, Alaska · 764 days ago · 7 km deep · 30 km away
  17. 2.7186 km SE of Perryville, Alaska · 764 days ago · 7 km deep · 34 km away
  18. 2.6199 km SE of Perryville, Alaska · 764 days ago · 10 km deep · 29 km away
  19. 2.3191 km SSE of Perryville, Alaska · 756 days ago · 1 km deep · 99 km away
  20. 2.6128 km SE of Chignik, Alaska · 756 days ago · 25 km deep · 80 km away
  21. 2.4175 km SE of Chignik, Alaska · 755 days ago · 10 km deep · 29 km away
  22. 3.0180 km SE of Perryville, Alaska · 753 days ago · 12 km deep · 42 km away
  23. 4.5201 km SE of Perryville, Alaska · 751 days ago · 2 km deep · 32 km away
  24. 3.2199 km SE of Perryville, Alaska · 751 days ago · 8 km deep · 30 km away
  25. 3.4201 km SE of Perryville, Alaska · 750 days ago · 4 km deep · 32 km away

Before

  1. 2.1165 km SE of Perryville, Alaska · 810 days ago · 20 km deep · 48 km away
  2. 2.3164 km SE of Perryville, Alaska · 810 days ago · 34 km deep · 48 km away
  3. 2.9129 km SE of Chignik, Alaska · 814 days ago · 26 km deep · 73 km away
  4. 3.5205 km SE of Chignik, Alaska · 815 days ago · 7 km deep · 37 km away
  5. 2.1123 km SE of Perryville, Alaska · 818 days ago · 28 km deep · 87 km away
  6. 2.4187 km SSW of Akhiok, Alaska · 819 days ago · 4 km deep · 83 km away
  7. 2.8198 km SE of Perryville, Alaska · 822 days ago · 30 km deep · 31 km away
  8. 2.4191 km SE of Perryville, Alaska · 822 days ago · 6 km deep · 36 km away
  9. 2.7170 km SSE of Perryville, Alaska · 835 days ago · 3 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak024972argi (also filed as us7000n9ha). Read Mon, Oct 5, 2026, 11:38 AM UTC.