Alaska earthquakes

M3.0 earthquake 139 km SW of Nikolski, Alaska

A magnitude 3.0 earthquake struck 139 km SW of Nikolski, Alaska on Thu, Mar 14, 2019, 5:30 PM HADT (02:30 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.7 121 km SSW of Nikolski, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-03-15 02:30:39 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
52.156° N, 170.476° 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
3.0ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
3.0ML, local (Richter)Alaska Earthquake CenterPreliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 10.8 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
217°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.8173 km ESE of Atka, Alaska · 2758 days ago · 40 km deep · 93 km away
  2. 2.660 km WSW of Nikolski, Alaska · 2756 days ago · 106 km deep · 82 km away
  3. 2.350 km WSW of Nikolski, Alaska · 2756 days ago · 12 km deep · 90 km away
  4. 3.091 km SW of Nikolski, Alaska · 2754 days ago · 9 km deep · 48 km away
  5. 2.559 km SW of Nikolski, Alaska · 2750 days ago · 27 km deep · 80 km away
  6. 3.2192 km SW of Nikolski, Alaska · 2749 days ago · 36 km deep · 52 km away
  7. 4.0109 km SSW of Nikolski, Alaska · 2748 days ago · 35 km deep · 74 km away
  8. 4.1106 km SSW of Nikolski, Alaska · 2748 days ago · 35 km deep · 67 km away
  9. 2.256 km SW of Nikolski, Alaska · 2745 days ago · 14 km deep · 83 km away
  10. 2.445 km SW of Nikolski, Alaska · 2742 days ago · 13 km deep · 94 km away
  11. 3.0167 km WSW of Nikolski, Alaska · 2740 days ago · 43 km deep · 39 km away
  12. 2.594 km SW of Nikolski, Alaska · 2738 days ago · 5 km deep · 47 km away
  13. 4.7121 km SSW of Nikolski, Alaska · 2735 days ago · 23 km deep · 59 km away
  14. 2.7128 km SSW of Nikolski, Alaska · 2735 days ago · 32 km deep · 61 km away
  15. 2.245 km SW of Nikolski, Alaska · 2735 days ago · 10 km deep · 95 km away
  16. 3.083 km SW of Nikolski, Alaska · 2734 days ago · 13 km deep · 57 km away
  17. 2.8Fox Islands, Aleutian Islands, Alaska · 2715 days ago · 15 km deep · 98 km away
  18. 3.855 km SW of Nikolski, Alaska · 2712 days ago · 11 km deep · 86 km away
  19. 3.9153 km SW of Nikolski, Alaska · 2709 days ago · 35 km deep · 22 km away
  20. 3.0141 km SW of Nikolski, Alaska · 2708 days ago · 35 km deep · 4 km away
  21. 2.467 km SSW of Nikolski, Alaska · 2705 days ago · 40 km deep · 86 km away

Before

  1. 2.349 km WSW of Nikolski, Alaska · 2760 days ago · 71 km deep · 97 km away
  2. 2.792 km SSW of Nikolski, Alaska · 2766 days ago · 10 km deep · 84 km away
  3. 3.6102 km SSW of Nikolski, Alaska · 2766 days ago · 10 km deep · 85 km away
  4. 3.9187 km SSW of Nikolski, Alaska · 2769 days ago · 10 km deep · 77 km away
  5. 3.8146 km SW of Nikolski, Alaska · 2770 days ago · 18 km deep · 18 km away
  6. 4.1190 km WSW of Nikolski, Alaska · 2771 days ago · 35 km deep · 54 km away
  7. 3.9193 km E of Atka, Alaska · 2779 days ago · 36 km deep · 70 km away
  8. 3.459 km WSW of Nikolski, Alaska · 2787 days ago · 31 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003agh (also filed as ak0193ef52ak). Read Sat, Oct 3, 2026, 1:49 PM UTC.