M4.3 earthquake 95 km SW of Atka, Alaska
A magnitude 4.3 earthquake struck 95 km SW of Atka, Alaska on Sat, Apr 12, 1997, 10:02 PM HADT (07:02 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M4.8 52 km S 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-04-13 07:02:41 UTC
- Depth
- 25.3 km (15.7 mi), shallow
- Epicenter
- 51.620° N, 175.230° 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: 9 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.348 km SSE of Adak, Alaska · 10761 days ago · 33 km deep · 77 km away
- 2.844 km E of Adak, Alaska · 10759 days ago · 33 km deep · 58 km away
- 4.046 km WSW of Atka, Alaska · 10756 days ago · 33 km deep · 51 km away
- 4.741 km SSW of Atka, Alaska · 10749 days ago · 49 km deep · 63 km away
- 3.467 km W of Atka, Alaska · 10736 days ago · 33 km deep · 57 km away
- 4.852 km S of Adak, Alaska · 10724 days ago · 44 km deep · 100 km away
- 4.324 km ENE of Adak, Alaska · 10721 days ago · 72 km deep · 85 km away
- 3.939 km ENE of Adak, Alaska · 10718 days ago · 33 km deep · 74 km away
- 3.575 km ESE of Adak, Alaska · 10706 days ago · 33 km deep · 34 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00080f7. Read Thu, Oct 1, 2026, 8:50 PM UTC.