Alaska earthquakes

M3.2 earthquake 141 km W of Nikolski, Alaska

A magnitude 3.2 earthquake struck 141 km W of Nikolski, Alaska on Wed, Jul 17, 2019, 8:37 AM HADT (17:37 UTC), 148 km (92 mi) below the surface.

A larger quake followed: M3.8 135 km SW of Nikolski, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
3.2 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-07-17 17:37:21 UTC
Depth
148.2 km (92.1 mi), intermediate-depth
Epicenter
52.843° N, 170.956° 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
3.2ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 stations
2.9ML, 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 14.3 km horizontally, 13.6 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
170°
Stations used
25

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.3104 km SW of Nikolski, Alaska · 2631 days ago · 27 km deep · 93 km away
  2. 3.0127 km SW of Nikolski, Alaska · 2622 days ago · 35 km deep · 86 km away
  3. 2.857 km WSW of Nikolski, Alaska · 2617 days ago · 16 km deep · 90 km away
  4. 3.8135 km SW of Nikolski, Alaska · 2616 days ago · 45 km deep · 83 km away
  5. 1.553 km WSW of Nikolski, Alaska · 2613 days ago · 4 km deep · 95 km away
  6. 1.871 km SW of Nikolski, Alaska · 2612 days ago · 53 km deep · 96 km away
  7. 3.7171 km SW of Nikolski, Alaska · 2611 days ago · 35 km deep · 90 km away
  8. 3.8205 km WNW of Nikolski, Alaska · 2610 days ago · 260 km deep · 95 km away
  9. 2.7143 km SW of Nikolski, Alaska · 2607 days ago · 35 km deep · 75 km away
  10. 3.443 km WSW of Nikolski, Alaska · 2605 days ago · 27 km deep · 99 km away
  11. 2.9140 km SW of Nikolski, Alaska · 2604 days ago · 35 km deep · 76 km away
  12. 1.948 km WSW of Nikolski, Alaska · 2602 days ago · 5 km deep · 94 km away
  13. 2.769 km WNW of Nikolski, Alaska · 2602 days ago · 145 km deep · 90 km away
  14. 2.9119 km SW of Nikolski, Alaska · 2601 days ago · 35 km deep · 96 km away
  15. 2.399 km SW of Nikolski, Alaska · 2601 days ago · 50 km deep · 81 km away
  16. 2.243 km WSW of Nikolski, Alaska · 2598 days ago · 9 km deep · 100 km away
  17. 2.353 km SW of Nikolski, Alaska · 2598 days ago · 10 km deep · 99 km away
  18. 2.8155 km W of Nikolski, Alaska · 2591 days ago · 237 km deep · 33 km away
  19. 2.9173 km WSW of Nikolski, Alaska · 2583 days ago · 35 km deep · 60 km away
  20. 2.9Fox Islands, Aleutian Islands, Alaska · 2581 days ago · 35 km deep · 92 km away

Before

  1. 2.884 km WNW of Nikolski, Alaska · 2635 days ago · 154 km deep · 83 km away
  2. 3.172 km WNW of Nikolski, Alaska · 2653 days ago · 173 km deep · 85 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600053is (also filed as ak01993qr2gp). Read Sat, Oct 3, 2026, 9:30 PM UTC.