M5.8 earthquake 111 km SSW of Nikolski, Alaska
A magnitude 5.8 earthquake struck 111 km SSW of Nikolski, Alaska on Wed, Mar 22, 1978, 9:23 PM GMT-10 (07:23 UTC), 23 km (14 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.8 (ms), moderate
- Local time
- UTC
- 1978-03-23 07:23:13 UTC
- Depth
- 23.0 km (14.3 mi), shallow
- Epicenter
- 52.010° N, 169.465° 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
- 204
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 1 in the 60 days after this one and 5 in the 30 days before it.
After
Before
- 5.072 km SSE of Nikolski, Alaska · 17722 days ago · 33 km deep · 69 km away
- 4.659 km SSE of Nikolski, Alaska · 17722 days ago · 51 km deep · 76 km away
- 5.573 km SSE of Nikolski, Alaska · 17722 days ago · 49 km deep · 66 km away
- 5.176 km SSE of Nikolski, Alaska · 17722 days ago · 38 km deep · 66 km away
- 4.780 km SSE of Nikolski, Alaska · 17723 days ago · 20 km deep · 76 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000tk3 (also filed as ushis3469, iscgem685369). Read Tue, Sep 22, 2026, 8:06 AM UTC.