Alaska earthquakes

M2.5 earthquake 202 km SSE of Old Harbor, Alaska

A magnitude 2.5 earthquake struck 202 km SSE of Old Harbor, Alaska on Thu, Jul 12, 2018, 12:20 AM AKDT (08:20 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.8 246 km SE of Old Harbor, 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
2.5 (ml), micro
Local time
UTC
2018-07-12 08:20:53 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
55.581° N, 151.833° 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 9.3 km horizontally, 8.2 km in depth
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.3198 km SSE of Old Harbor, Alaska · 2988 days ago · 12 km deep · 10 km away
  2. 1.7162 km SSE of Old Harbor, Alaska · 2988 days ago · 11 km deep · 41 km away
  3. 2.4238 km SSE of Old Harbor, Alaska · 2979 days ago · 5 km deep · 37 km away
  4. 2.5233 km SSE of Akhiok, Alaska · 2977 days ago · 12 km deep · 83 km away
  5. 2.2119 km SE of Old Harbor, Alaska · 2969 days ago · 25 km deep · 85 km away
  6. 2.8246 km SE of Old Harbor, Alaska · 2962 days ago · 40 km deep · 66 km away
  7. 1.9259 km SE of Old Harbor, Alaska · 2958 days ago · 5 km deep · 80 km away
  8. 3.0278 km SSE of Akhiok, Alaska · 2956 days ago · 14 km deep · 81 km away
  9. 2.4206 km SSE of Chiniak, Alaska · 2954 days ago · 8 km deep · 98 km away
  10. 2.2132 km SSE of Akhiok, Alaska · 2948 days ago · 36 km deep · 89 km away
  11. 2.4137 km SSE of Akhiok, Alaska · 2948 days ago · 44 km deep · 82 km away
  12. 2.4131 km SSE of Akhiok, Alaska · 2948 days ago · 37 km deep · 92 km away
  13. 2.9229 km SSE of Chiniak, Alaska · 2945 days ago · 4 km deep · 88 km away
  14. 2.9211 km SSE of Old Harbor, Alaska · 2943 days ago · 10 km deep · 9 km away

Before

  1. 3.0195 km SSE of Old Harbor, Alaska · 2999 days ago · 10 km deep · 16 km away
  2. 2.7217 km SSE of Chiniak, Alaska · 3003 days ago · 9 km deep · 76 km away
  3. 2.9248 km SE of Old Harbor, Alaska · 3004 days ago · 5 km deep · 73 km away
  4. 2.3126 km SSE of Old Harbor, Alaska · 3021 days ago · 18 km deep · 76 km away
  5. 2.9241 km SE of Old Harbor, Alaska · 3023 days ago · 6 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000g38h (also filed as ak0188vblumm, ak19858661, aacse0188vblumm). Read Tue, Sep 22, 2026, 5:23 PM UTC.