Alaska earthquakes

M4.8 earthquake 112 km WSW of Adak, Alaska

A magnitude 4.8 earthquake struck 112 km WSW of Adak, Alaska on Tue, Mar 25, 1997, 12:37 PM HAST (22:37 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.5 115 km WSW of Adak, 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
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1997-03-25 22:37:43 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.357° N, 178.034° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

Felt (IV) on Adak.

From the USGS event page for usp0007ze3. U.S. Geological Survey text and figures are in the public domain.

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 1.8 and up: 12 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 5.5115 km WSW of Adak, Alaska · 10776 days ago · 33 km deep · 4 km away
  2. 4.129 km S of Adak, Alaska · 10756 days ago · 64 km deep · 97 km away
  3. 3.259 km S of Adak, Alaska · 10753 days ago · 33 km deep · 97 km away
  4. 4.796 km SSW of Adak, Alaska · 10746 days ago · 33 km deep · 61 km away
  5. 4.6106 km SSW of Adak, Alaska · 10746 days ago · 33 km deep · 67 km away
  6. 3.8193 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 86 km away
  7. 4.4194 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 85 km away
  8. 4.9184 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 76 km away
  9. 4.2196 km WSW of Adak, Alaska · 10745 days ago · 33 km deep · 87 km away
  10. 3.8111 km S of Adak, Alaska · 10723 days ago · 33 km deep · 92 km away
  11. 4.088 km S of Adak, Alaska · 10723 days ago · 33 km deep · 100 km away
  12. 4.852 km S of Adak, Alaska · 10723 days ago · 44 km deep · 97 km away

Before

  1. 4.1163 km WSW of Adak, Alaska · 10782 days ago · 33 km deep · 51 km away
  2. 4.2194 km WSW of Adak, Alaska · 10786 days ago · 33 km deep · 82 km away
  3. 4.456 km SSW of Adak, Alaska · 10794 days ago · 33 km deep · 78 km away
  4. 4.242 km W of Adak, Alaska · 10798 days ago · 64 km deep · 74 km away
  5. 4.8107 km WSW of Adak, Alaska · 10798 days ago · 56 km deep · 10 km away
  6. 4.8140 km WSW of Adak, Alaska · 10806 days ago · 33 km deep · 37 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0007ze3. Read Thu, Oct 1, 2026, 10:19 AM UTC.