M5.0 earthquake 130 km WSW of Nikolski, Alaska
A magnitude 5.0 earthquake struck 130 km WSW of Nikolski, Alaska on Fri, Jul 10, 1981, 10:58 PM GMT-10 (08:58 UTC), 52 km (32 mi) below the surface.
A larger quake followed: M5.2 Fox Islands, Aleutian Islands, Alaska. This one was a foreshock.
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
- 1981-07-11 08:58:07 UTC
- Depth
- 52.2 km (32.4 mi), shallow
- Epicenter
- 52.411° N, 170.576° 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.
Nearby
Within 100 km, magnitude 2.0 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
- 5.2Fox Islands, Aleutian Islands, Alaska · 16508 days ago · 39 km deep · 99 km away
- 4.780 km SSW of Nikolski, Alaska · 16506 days ago · 28 km deep · 80 km away
- 4.5163 km SW of Nikolski, Alaska · 16480 days ago · 38 km deep · 37 km away
- 5.163 km SSW of Nikolski, Alaska · 16461 days ago · 39 km deep · 88 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001ems. Read Tue, Sep 22, 2026, 7:24 AM UTC.