Alaska earthquakes

M2.6 earthquake 21 km NNW of Nelson Lagoon, Alaska

A magnitude 2.6 earthquake struck 21 km NNW of Nelson Lagoon, Alaska on Fri, Aug 31, 2018, 7:06 AM AKDT (15:06 UTC), 198 km (123 mi) below the surface.

A larger quake followed: M3.9 54 km SW of Nelson Lagoon, Alaska. This one was a foreshock.

Sand Point forecastMore in Alaska

Map

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

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The earthquake

Magnitude
2.6 (ml), micro
Local time
UTC
2018-08-31 15:06:47 UTC
Depth
197.5 km (122.7 mi), intermediate-depth
Epicenter
56.186° N, 161.281° 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.

Location uncertainty
About 8.8 km horizontally, 4.0 km in depth
Depth from
From location
Station coverage gap
125°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.457 km WNW of Ivanof Bay, Alaska · 2947 days ago · 153 km deep · 61 km away
  2. 2.151 km NNE of King Cove, Alaska · 2941 days ago · 23 km deep · 90 km away
  3. 2.553 km NNE of King Cove, Alaska · 2941 days ago · 25 km deep · 88 km away
  4. 2.26 km NNW of Sand Point, Alaska · 2938 days ago · 76 km deep · 100 km away
  5. 1.851 km S of Nelson Lagoon, Alaska · 2933 days ago · 109 km deep · 72 km away
  6. 1.925 km W of Ivanof Bay, Alaska · 2930 days ago · 110 km deep · 91 km away
  7. 2.634 km SW of Nelson Lagoon, Alaska · 2925 days ago · 170 km deep · 47 km away
  8. 3.954 km SW of Nelson Lagoon, Alaska · 2919 days ago · 168 km deep · 67 km away
  9. 3.730 km NW of Nelson Lagoon, Alaska · 2910 days ago · 202 km deep · 17 km away
  10. 1.762 km NE of King Cove, Alaska · 2908 days ago · 7 km deep · 84 km away
  11. 2.946 km SE of Nelson Lagoon, Alaska · 2908 days ago · 139 km deep · 64 km away
  12. 3.524 km SW of Nelson Lagoon, Alaska · 2901 days ago · 166 km deep · 41 km away
  13. 3.219 km WNW of Nelson Lagoon, Alaska · 2895 days ago · 206 km deep · 20 km away

Before

  1. 1.953 km W of Nelson Lagoon, Alaska · 2955 days ago · 14 km deep · 56 km away
  2. 2.860 km SW of Nelson Lagoon, Alaska · 2958 days ago · 180 km deep · 73 km away
  3. 1.937 km NNW of Sand Point, Alaska · 2960 days ago · 88 km deep · 69 km away
  4. 2.830 km SE of Nelson Lagoon, Alaska · 2962 days ago · 164 km deep · 50 km away
  5. 2.255 km NE of King Cove, Alaska · 2968 days ago · 117 km deep · 91 km away
  6. 2.444 km SE of Nelson Lagoon, Alaska · 2969 days ago · 137 km deep · 63 km away
  7. 1.914 km N of Sand Point, Alaska · 2973 days ago · 71 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000hfzw (also filed as ak018b64k7zy, ak20256794, aacse018b64k7zy). Read Wed, Sep 30, 2026, 7:28 PM UTC.