Alaska earthquakes

M2.9 earthquake 235 km SE of Atka, Alaska

A magnitude 2.9 earthquake struck 235 km SE of Atka, Alaska on Sun, Jun 26, 2022, 8:29 AM HADT (17:29 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.1 186 km SSE 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-06-26 17:29:40 UTC
Depth
22.9 km (14.2 mi), shallow
Epicenter
50.461° N, 172.274° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.4ML, local (Richter)Alaska Earthquake CenterPreliminary

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 6.2 km horizontally, 9.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
258°, poorly surrounded by stations
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.5157 km SSE of Atka, Alaska · 1555 days ago · 10 km deep · 83 km away
  2. 2.3149 km SE of Atka, Alaska · 1552 days ago · 7 km deep · 86 km away
  3. 2.6147 km SE of Atka, Alaska · 1550 days ago · 10 km deep · 97 km away
  4. 2.4141 km SSE of Atka, Alaska · 1542 days ago · 10 km deep · 97 km away
  5. 3.1186 km SSE of Atka, Alaska · 1537 days ago · 10 km deep · 74 km away
  6. 3.0159 km SSE of Atka, Alaska · 1528 days ago · 10 km deep · 91 km away
  7. 2.9199 km SSE of Atka, Alaska · 1526 days ago · 10 km deep · 69 km away
  8. 2.2168 km SSE of Atka, Alaska · 1512 days ago · 26 km deep · 78 km away
  9. 2.9186 km SSE of Atka, Alaska · 1502 days ago · 38 km deep · 63 km away

Before

  1. 2.9184 km SSE of Atka, Alaska · 1571 days ago · 10 km deep · 62 km away
  2. 2.8182 km SSE of Atka, Alaska · 1573 days ago · 10 km deep · 76 km away
  3. 2.1217 km SSE of Atka, Alaska · 1578 days ago · 15 km deep · 56 km away
  4. 2.2229 km SSE of Atka, Alaska · 1579 days ago · 10 km deep · 48 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ibgq (also filed as ak022850f3wk). Read Sun, Oct 4, 2026, 8:45 AM UTC.