Alaska earthquakes

M3.1 earthquake 236 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 236 km SE of Chiniak, Alaska on Wed, Sep 23, 2026, 4:19 AM AKDT (12:19 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 227 km SE of Chiniak, 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
3.1 (ml), minor
Local time
UTC
2026-09-23 12:19:12 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
56.356° N, 149.142° 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. If you felt it, tell the USGS: every report sharpens the shaking map.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 9.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.05
Depth from
Operator assigned
Station coverage gap
199°, poorly surrounded by stations
Stations used
44

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 1 since this one and 9 in the 30 days before it.

After

  1. 3.5227 km SE of Chiniak, Alaska · 3 days ago · 10 km deep · 46 km away

Before

  1. 2.9232 km ESE of Chiniak, Alaska · 19 days ago · 5 km deep · 40 km away
  2. 2.8219 km SE of Chiniak, Alaska · 19 days ago · 10 km deep · 37 km away
  3. 3.0238 km ESE of Chiniak, Alaska · 19 days ago · 10 km deep · 58 km away
  4. 3.2281 km ESE of Chiniak, Alaska · 20 days ago · 5 km deep · 81 km away
  5. 3.7240 km SE of Chiniak, Alaska · 21 days ago · 10 km deep · 11 km away
  6. 3.3221 km SE of Chiniak, Alaska · 21 days ago · 10 km deep · 15 km away
  7. 2.8214 km SE of Chiniak, Alaska · 22 days ago · 10 km deep · 63 km away
  8. 2.7236 km ESE of Chiniak, Alaska · 25 days ago · 5 km deep · 45 km away
  9. 2.9249 km ESE of Chiniak, Alaska · 35 days ago · 10 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000tx30. Read Tue, Sep 29, 2026, 6:13 PM UTC.