Alaska earthquakes

M4.2 earthquake 93 km SSW of Adak, Alaska

A magnitude 4.2 earthquake struck 93 km SSW of Adak, Alaska on Tue, Jun 9, 1998, 4:49 PM HADT (01:49 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.9 50 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1998-06-10 01:49:11 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.055° N, 176.920° 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.

Depth from
OPERATOR_ASSIGNED

Nearby

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

After

  1. 3.664 km SSW of Adak, Alaska · 10316 days ago · 33 km deep · 34 km away
  2. 3.458 km S of Adak, Alaska · 10312 days ago · 33 km deep · 41 km away
  3. 4.3112 km WSW of Adak, Alaska · 10291 days ago · 33 km deep · 100 km away
  4. 4.950 km WSW of Adak, Alaska · 10284 days ago · 45 km deep · 72 km away

Before

  1. 4.322 km SE of Adak, Alaska · 10345 days ago · 60 km deep · 82 km away
  2. 3.7111 km SW of Adak, Alaska · 10347 days ago · 33 km deep · 74 km away
  3. 4.158 km SSE of Adak, Alaska · 10353 days ago · 33 km deep · 57 km away
  4. 4.3122 km SW of Adak, Alaska · 10366 days ago · 33 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008pnk. Read Fri, Oct 2, 2026, 5:09 AM UTC.