M4.2 earthquake 54 km NNW of Atka, Alaska
A magnitude 4.2 earthquake struck 54 km NNW of Atka, Alaska on Fri, Sep 12, 1997, 8:47 PM HADT (05:47 UTC), 180 km (112 mi) below the surface.
A larger quake followed: M4.9 86 km WSW 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
- 1997-09-13 05:47:48 UTC
- Depth
- 180.0 km (111.8 mi), intermediate-depth
- Epicenter
- 52.629° N, 174.590° 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
- CONSTRAINED_BY_DEPTH_PHASES
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.986 km WSW of Atka, Alaska · 10604 days ago · 56 km deep · 100 km away
- 4.355 km E of Atka, Alaska · 10579 days ago · 64 km deep · 90 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00087fv. Read Sun, Oct 4, 2026, 9:58 PM UTC.