Alaska earthquakes

M3.3 earthquake 91 km SSW of Adak, Alaska

A magnitude 3.3 earthquake struck 91 km SSW of Adak, Alaska on Fri, Feb 13, 1998, 2:45 PM HAST (00:45 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M4.6 126 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
3.3 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1998-02-14 00:45:29 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.090° N, 177.021° 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: 8 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 3.493 km S of Adak, Alaska · 10457 days ago · 33 km deep · 44 km away
  2. 4.472 km S of Adak, Alaska · 10455 days ago · 58 km deep · 33 km away
  3. 4.571 km SSW of Adak, Alaska · 10453 days ago · 33 km deep · 21 km away
  4. 4.558 km SSW of Adak, Alaska · 10423 days ago · 33 km deep · 33 km away
  5. 4.549 km SSW of Adak, Alaska · 10423 days ago · 33 km deep · 43 km away
  6. 4.424 km WSW of Adak, Alaska · 10418 days ago · 56 km deep · 82 km away
  7. 4.6126 km WSW of Adak, Alaska · 10411 days ago · 33 km deep · 86 km away
  8. 3.876 km SSW of Adak, Alaska · 10411 days ago · 33 km deep · 27 km away

Before

  1. 3.8Andreanof Islands, Aleutian Islands, Alaska · 10458 days ago · 33 km deep · 50 km away
  2. 4.640 km ESE of Adak, Alaska · 10458 days ago · 43 km deep · 93 km away
  3. 4.6133 km WSW of Adak, Alaska · 10466 days ago · 33 km deep · 89 km away
  4. 4.888 km WSW of Adak, Alaska · 10474 days ago · 42 km deep · 68 km away
  5. 4.9123 km WSW of Adak, Alaska · 10479 days ago · 33 km deep · 82 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008fyn. Read Fri, Oct 2, 2026, 6:45 AM UTC.