Alaska earthquakes

M2.3 earthquake 187 km SE of Adak, Alaska

A magnitude 2.3 earthquake struck 187 km SE of Adak, Alaska on Thu, Jun 30, 2016, 3:49 AM HADT (12:49 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.6 193 km S of Atka, 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
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2016-06-30 12:49:58 UTC
Depth
8.0 km (5.0 mi), shallow
Epicenter
50.534° N, 175.009° 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
17

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.1188 km S of Adak, Alaska · 3746 days ago · 4 km deep · 87 km away
  2. 1.7143 km S of Atka, Alaska · 3744 days ago · 29 km deep · 86 km away
  3. 3.6193 km S of Atka, Alaska · 3744 days ago · 15 km deep · 25 km away
  4. 2.5108 km SSW of Atka, Alaska · 3735 days ago · 34 km deep · 87 km away
  5. 1.7120 km SE of Adak, Alaska · 3725 days ago · 38 km deep · 78 km away
  6. 2.0151 km S of Atka, Alaska · 3710 days ago · 25 km deep · 91 km away
  7. 2.0133 km S of Atka, Alaska · 3706 days ago · 21 km deep · 96 km away
  8. 2.5196 km S of Atka, Alaska · 3697 days ago · 29 km deep · 30 km away

Before

  1. 5.0165 km SSE of Adak, Alaska · 3749 days ago · 10 km deep · 46 km away
  2. 2.1148 km S of Atka, Alaska · 3749 days ago · 16 km deep · 73 km away
  3. 2.0126 km SSW of Atka, Alaska · 3754 days ago · 16 km deep · 70 km away
  4. 2.2126 km SSW of Atka, Alaska · 3757 days ago · 25 km deep · 70 km away
  5. 2.1127 km SSW of Atka, Alaska · 3757 days ago · 7 km deep · 68 km away
  6. 1.6134 km S of Adak, Alaska · 3758 days ago · 22 km deep · 97 km away
  7. 2.1109 km SSW of Atka, Alaska · 3760 days ago · 9 km deep · 84 km away
  8. 2.296 km SE of Adak, Alaska · 3762 days ago · 7 km deep · 99 km away
  9. 2.6183 km S of Atka, Alaska · 3764 days ago · 25 km deep · 87 km away
  10. 2.0113 km SSW of Atka, Alaska · 3775 days ago · 18 km deep · 86 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0168d78zrc (also filed as ak13743227). Read Sun, Oct 4, 2026, 2:06 PM UTC.