M5.8 earthquake 170 km WSW of Nikolski, Alaska
A magnitude 5.8 earthquake struck 170 km WSW of Nikolski, Alaska on Mon, Jun 24, 1963, 5:17 AM GMT-11 (16:17 UTC), 65 km (40 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.8 (Mw, moment), moderate
- Magnitude from
- ISC-GEM global catalog
- Local time
- UTC
- 1963-06-24 16:17:21 UTC
- Depth
- 65.0 km (40.4 mi), shallow
- Epicenter
- 52.333° N, 171.170° 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 2.8 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 iscgem872573. Read Fri, Oct 2, 2026, 2:07 PM UTC.