M6.8 earthquake 46 km SSW of Nikolski, Alaska
A magnitude 6.8 earthquake struck 46 km SSW of Nikolski, Alaska on Sat, Jul 22, 1933, 10:55 AM GMT-10 (20:55 UTC), 30 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.8 (mw), strong
- Local time
- UTC
- 1933-07-22 20:55:19 UTC
- Depth
- 30.0 km (18.6 mi), shallow
- Epicenter
- 52.590° N, 169.234° 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.
- Magnitude uncertainty
- ±0.27
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 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 iscgem905732 (also filed as ushis1003). Read Tue, Sep 22, 2026, 10:54 AM UTC.