M6.0 earthquake 177 km WSW of Nikolski, Alaska
A magnitude 6.0 earthquake struck 177 km WSW of Nikolski, Alaska on Tue, Aug 18, 1925, 6:25 PM GMT-11 (05:25 UTC), 55 km (34 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (mw), moderate
- Local time
- UTC
- 1925-08-19 05:25:02 UTC
- Depth
- 55.0 km (34.2 mi), shallow
- Epicenter
- 52.276° N, 171.239° 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
- ±0.20
- Depth from
- From location
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 iscgem910652 (also filed as ushis728). Read Tue, Sep 22, 2026, 3:07 PM UTC.