Alaska earthquakes

M3.0 earthquake 202 km S of Adak, Alaska

A magnitude 3.0 earthquake struck 202 km S of Adak, Alaska on Tue, Apr 30, 2024, 3:25 AM HADT (12:25 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 175 km S of Adak, 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
3.0 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-04-30 12:25:05 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.077° N, 177.053° 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
3.0ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.8ML, 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 6.5 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
284°, poorly surrounded by stations
Stations used
14

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.1114 km S of Adak, Alaska · 859 days ago · 7 km deep · 90 km away
  2. 2.2183 km SSW of Adak, Alaska · 854 days ago · 5 km deep · 24 km away
  3. 3.8175 km S of Adak, Alaska · 852 days ago · 10 km deep · 46 km away
  4. 2.8220 km SSW of Adak, Alaska · 838 days ago · 10 km deep · 76 km away
  5. 2.1113 km SSW of Adak, Alaska · 837 days ago · 14 km deep · 89 km away
  6. 2.9181 km S of Adak, Alaska · 833 days ago · 10 km deep · 70 km away
  7. 1.8167 km S of Adak, Alaska · 833 days ago · 5 km deep · 68 km away
  8. 2.2158 km S of Adak, Alaska · 830 days ago · 20 km deep · 57 km away
  9. 2.2188 km S of Adak, Alaska · 825 days ago · 1 km deep · 14 km away

Before

  1. 2.5168 km S of Adak, Alaska · 895 days ago · 10 km deep · 72 km away
  2. 2.8172 km SSW of Adak, Alaska · 896 days ago · 10 km deep · 45 km away
  3. 2.8170 km SW of Adak, Alaska · 911 days ago · 10 km deep · 99 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000mqv2 (also filed as ak0245kbbkhm). Read Thu, Oct 1, 2026, 1:09 PM UTC.