Alaska earthquakes

M1.9 earthquake 244 km SSE of Old Harbor, Alaska

A magnitude 1.9 earthquake struck 244 km SSE of Old Harbor, Alaska on Tue, Sep 18, 2018, 9:34 PM AKDT (05:34 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.6 231 km SSE 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
1.9 (ml), micro
Local time
UTC
2018-09-19 05:34:57 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
55.294° N, 151.349° 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
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.6231 km SSE of Old Harbor, Alaska · 2922 days ago · 10 km deep · 29 km away
  2. 2.3241 km SSE of Chiniak, Alaska · 2922 days ago · 11 km deep · 69 km away
  3. 2.3241 km SSE of Old Harbor, Alaska · 2922 days ago · 14 km deep · 8 km away
  4. 2.5238 km SSE of Chiniak, Alaska · 2920 days ago · 12 km deep · 72 km away
  5. 3.0206 km SSE of Chiniak, Alaska · 2914 days ago · 20 km deep · 96 km away
  6. 2.3246 km SSE of Chiniak, Alaska · 2909 days ago · 11 km deep · 97 km away
  7. 2.2216 km SSE of Old Harbor, Alaska · 2908 days ago · 5 km deep · 43 km away
  8. 2.2255 km SSE of Akhiok, Alaska · 2908 days ago · 10 km deep · 44 km away
  9. 2.3248 km SSE of Chiniak, Alaska · 2883 days ago · 11 km deep · 99 km away
  10. 2.3231 km SE of Old Harbor, Alaska · 2877 days ago · 11 km deep · 46 km away
  11. 3.4219 km SSE of Chiniak, Alaska · 2875 days ago · 10 km deep · 97 km away
  12. 2.8203 km SSE of Old Harbor, Alaska · 2871 days ago · 31 km deep · 43 km away

Before

  1. 2.7240 km SSE of Chiniak, Alaska · 2938 days ago · 12 km deep · 98 km away
  2. 2.9211 km SSE of Old Harbor, Alaska · 2943 days ago · 10 km deep · 37 km away
  3. 2.9229 km SSE of Chiniak, Alaska · 2945 days ago · 4 km deep · 79 km away
  4. 2.3246 km SSE of Chiniak, Alaska · 2945 days ago · 12 km deep · 98 km away
  5. 2.5239 km SSE of Chiniak, Alaska · 2949 days ago · 13 km deep · 90 km away
  6. 2.8217 km SSE of Chiniak, Alaska · 2949 days ago · 10 km deep · 99 km away
  7. 2.4206 km SSE of Chiniak, Alaska · 2953 days ago · 8 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aacse018c1dzi62. Read Tue, Sep 22, 2026, 8:29 AM UTC.