M4.9 earthquake 65 km SE of Atka, Alaska
A magnitude 4.9 earthquake struck 65 km SE of Atka, Alaska on Fri, Jul 5, 1985, 9:02 AM HADT (18:02 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.1 109 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
- 4.9 (mb), light
- Local time
- UTC
- 1985-07-05 18:02:39 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.716° N, 173.655° 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 1.9 and up: 9 in the 60 days after this one and 0 in the 30 days before it.
After
- 6.1109 km SE of Atka, Alaska · 15048 days ago · 33 km deep · 52 km away
- 4.9129 km SE of Atka, Alaska · 15046 days ago · 33 km deep · 69 km away
- 4.5101 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 92 km away
- 3.897 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 82 km away
- 4.799 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 97 km away
- 4.799 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 94 km away
- 4.8Andreanof Islands, Aleutian Islands, Alaska · 15011 days ago · 33 km deep · 91 km away
- 4.8101 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 91 km away
- 4.8104 km SSW of Atka, Alaska · 15011 days ago · 33 km deep · 94 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002gfk. Read Mon, Sep 28, 2026, 5:05 PM UTC.