Alaska earthquakes

M5.8 earthquake 125 km WSW of Adak, Alaska

A magnitude 5.8 earthquake struck 125 km WSW of Adak, Alaska on Sat, Mar 30, 1957, 11:08 PM GMT-11 (10:08 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.9 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.8 (mw), moderate
Local time
UTC
1957-03-31 10:08:34 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.582° N, 178.392° 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.

Magnitude uncertainty
±0.44
Depth from
From location

Nearby

Within 100 km, magnitude 2.5 and up: 3 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 5.9Andreanof Islands, Aleutian Islands, Alaska · 25368 days ago · 35 km deep · 63 km away
  2. 5.0135 km WSW of Adak, Alaska · 25366 days ago · 12 km away
  3. 5.8178 km WSW of Adak, Alaska · 25362 days ago · 35 km deep · 53 km away

Before

  1. 6.0Andreanof Islands, Aleutian Islands, Alaska · 25392 days ago · 35 km deep · 75 km away
  2. 7.2162 km WSW of Adak, Alaska · 25393 days ago · 25 km deep · 38 km away
  3. 6.6152 km WSW of Adak, Alaska · 25395 days ago · 25 km deep · 29 km away
  4. 7.160 km SW of Adak, Alaska · 25396 days ago · 20 km deep · 80 km away
  5. 6.4133 km SW of Adak, Alaska · 25397 days ago · 10 km deep · 45 km away
  6. 6.5173 km WSW of Adak, Alaska · 25397 days ago · 35 km deep · 50 km away
  7. 7.0148 km WSW of Adak, Alaska · 25397 days ago · 25 km deep · 31 km away
  8. 6.2147 km WSW of Adak, Alaska · 25398 days ago · 35 km deep · 26 km away
  9. 6.2Andreanof Islands, Aleutian Islands, Alaska · 25398 days ago · 35 km deep · 89 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem886294 (also filed as ushis2206). Read Tue, Sep 22, 2026, 8:25 PM UTC.