Alaska earthquakes

M3.1 earthquake 224 km SSW of Adak, Alaska

A magnitude 3.1 earthquake struck 224 km SSW of Adak, Alaska on Wed, Mar 29, 2017, 11:52 AM HADT (20:52 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.7 148 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.1 (ML, local (Richter)), minor
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-03-29 20:52:54 UTC
Depth
24.0 km (14.9 mi), shallow
Epicenter
50.137° N, 178.253° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.8170 km SSW of Adak, Alaska · 3470 days ago · 7 km deep · 75 km away
  2. 3.6211 km SW of Adak, Alaska · 3465 days ago · 10 km deep · 88 km away
  3. 2.4238 km SSW of Adak, Alaska · 3430 days ago · 25 km deep · 26 km away
  4. 3.7148 km SW of Adak, Alaska · 3424 days ago · 10 km deep · 99 km away

Before

  1. 2.7238 km SW of Adak, Alaska · 3493 days ago · 37 km deep · 41 km away
  2. 4.2237 km SSW of Adak, Alaska · 3502 days ago · 34 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01741vigyt (also filed as ak15671211). Read Sat, Oct 3, 2026, 12:17 PM UTC.