M5.0 earthquake 86 km NE of Atka, Alaska
A magnitude 5.0 earthquake struck 86 km NE of Atka, Alaska on Wed, Jun 28, 1978, 11:10 PM GMT-10 (09:10 UTC), 147 km (91 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1978-06-29 09:10:57 UTC
- Depth
- 147.0 km (91.3 mi), intermediate-depth
- Epicenter
- 52.755° N, 173.313° 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.
- Stations used
- 68
Nearby
Within 100 km, magnitude 2.0 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000vc0. Read Tue, Sep 22, 2026, 8:01 AM UTC.