M5.8 earthquake 81 km SSW of Unalaska, Alaska
A magnitude 5.8 earthquake struck 81 km SSW of Unalaska, Alaska on Sat, Jun 7, 1958, 2:38 PM GMT-10 (00:38 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M6.3 130 km ESE of Nikolski, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.8 (mw), moderate
- Local time
- UTC
- 1958-06-08 00:38:57 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 53.176° N, 166.914° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.3130 km ESE of Nikolski, Alaska · 24939 days ago · 35 km deep · 58 km away
- 5.554 km SSE of Unalaska, Alaska · 24939 days ago · 200 km deep · 48 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem884526 (also filed as ushis2312). Read Tue, Sep 22, 2026, 4:15 PM UTC.