M4.3 earthquake 103 km SW of Atka, Alaska
A magnitude 4.3 earthquake struck 103 km SW of Atka, Alaska on Sat, Dec 27, 1997, 10:34 AM HAST (20:34 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-12-27 20:34:44 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.428° N, 175.043° 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 3 in the 30 days before it.
After
- 3.689 km SSW of Atka, Alaska · 10506 days ago · 33 km deep · 14 km away
- 4.788 km SW of Atka, Alaska · 10505 days ago · 33 km deep · 17 km away
- 4.183 km SW of Atka, Alaska · 10504 days ago · 33 km deep · 23 km away
- 4.169 km WSW of Atka, Alaska · 10503 days ago · 33 km deep · 51 km away
- 4.447 km SE of Atka, Alaska · 10487 days ago · 54 km deep · 99 km away
- 4.3109 km SE of Adak, Alaska · 10469 days ago · 33 km deep · 24 km away
- 4.640 km ESE of Adak, Alaska · 10458 days ago · 43 km deep · 80 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0008dac. Read Fri, Oct 2, 2026, 12:17 PM UTC.