M4.2 earthquake 80 km SSE of Adak, Alaska
A magnitude 4.2 earthquake struck 80 km SSE of Adak, Alaska on Mon, Dec 1, 1997, 10:42 PM HAST (08:42 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 88 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-12-02 08:42:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.237° N, 176.094° 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: 7 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.468 km SE of Adak, Alaska · 10523 days ago · 33 km deep · 32 km away
- 3.764 km ESE of Adak, Alaska · 10509 days ago · 33 km deep · 40 km away
- 4.3103 km SW of Atka, Alaska · 10505 days ago · 33 km deep · 76 km away
- 3.689 km SSW of Atka, Alaska · 10505 days ago · 33 km deep · 88 km away
- 4.788 km SW of Atka, Alaska · 10504 days ago · 33 km deep · 84 km away
- 4.183 km SW of Atka, Alaska · 10503 days ago · 33 km deep · 87 km away
- 3.895 km S of Adak, Alaska · 10502 days ago · 33 km deep · 41 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008bmv. Read Thu, Oct 1, 2026, 7:12 PM UTC.