M3.9 earthquake 39 km ENE of Adak, Alaska
A magnitude 3.9 earthquake struck 39 km ENE of Adak, Alaska on Wed, May 28, 1997, 2:44 AM HADT (11:44 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.3 76 km SW of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-05-28 11:44:46 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.014° N, 176.100° 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: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 3.575 km ESE of Adak, Alaska · 10706 days ago · 33 km deep · 60 km away
- 4.376 km SW of Atka, Alaska · 10668 days ago · 33 km deep · 72 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00082xc. Read Thu, Oct 1, 2026, 8:09 PM UTC.