Alaska earthquakes

M4.3 earthquake 122 km SW of Adak, Alaska

A magnitude 4.3 earthquake struck 122 km SW of Adak, Alaska on Sat, May 16, 1998, 5:33 AM HADT (14:33 UTC), 33 km (21 mi) below the surface.

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The earthquake

Magnitude
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1998-05-16 14:33:53 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.188° N, 178.014° 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: 5 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 3.7111 km SW of Adak, Alaska · 10347 days ago · 33 km deep · 11 km away
  2. 4.293 km SSW of Adak, Alaska · 10342 days ago · 33 km deep · 78 km away
  3. 4.1160 km WSW of Adak, Alaska · 10340 days ago · 33 km deep · 59 km away
  4. 4.2175 km WSW of Adak, Alaska · 10339 days ago · 33 km deep · 71 km away
  5. 3.664 km SSW of Adak, Alaska · 10316 days ago · 33 km deep · 71 km away

Before

  1. 4.2119 km WSW of Adak, Alaska · 10372 days ago · 33 km deep · 23 km away
  2. 3.299 km SW of Adak, Alaska · 10384 days ago · 61 km deep · 25 km away
  3. 4.635 km SW of Adak, Alaska · 10388 days ago · 40 km deep · 88 km away
  4. 4.652 km SW of Adak, Alaska · 10394 days ago · 43 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0008n74. Read Fri, Oct 2, 2026, 2:02 PM UTC.