M4.3 earthquake 55 km E of Atka, Alaska
A magnitude 4.3 earthquake struck 55 km E of Atka, Alaska on Fri, Oct 17, 1997, 7:12 AM HADT (16:12 UTC), 64 km (40 mi) below the surface.
A larger quake followed: M5.2 79 km SE 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
- 1997-10-17 16:12:37 UTC
- Depth
- 64.4 km (40.0 mi), shallow
- Epicenter
- 52.267° N, 173.397° 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
- FROM_LOCATION
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.495 km SE of Atka, Alaska · 10569 days ago · 33 km deep · 74 km away
- 4.482 km ENE of Atka, Alaska · 10558 days ago · 33 km deep · 29 km away
- 5.279 km SE of Atka, Alaska · 10547 days ago · 33 km deep · 68 km away
- 3.267 km NE of Atka, Alaska · 10521 days ago · 100 km deep · 39 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000897p. Read Fri, Oct 2, 2026, 7:45 AM UTC.