M3.8 earthquake 95 km S of Adak, Alaska
A magnitude 3.8 earthquake struck 95 km S of Adak, Alaska on Tue, Dec 30, 1997, 8:16 AM HAST (18:16 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 88 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.8 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-12-30 18:16:19 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.017° N, 176.561° 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 4 in the 30 days before it.
After
- 4.888 km WSW of Adak, Alaska · 10474 days ago · 42 km deep · 99 km away
- 4.3109 km SE of Adak, Alaska · 10469 days ago · 33 km deep · 92 km away
- 4.640 km ESE of Adak, Alaska · 10458 days ago · 43 km deep · 82 km away
- 3.8Andreanof Islands, Aleutian Islands, Alaska · 10458 days ago · 33 km deep · 82 km away
- 3.391 km SSW of Adak, Alaska · 10457 days ago · 33 km deep · 33 km away
- 3.493 km S of Adak, Alaska · 10457 days ago · 33 km deep · 12 km away
- 4.472 km S of Adak, Alaska · 10455 days ago · 58 km deep · 23 km away
- 4.571 km SSW of Adak, Alaska · 10452 days ago · 33 km deep · 43 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008ded. Read Fri, Oct 2, 2026, 1:46 AM UTC.