M5.8 earthquake 84 km SSE of Old Harbor, Alaska
A magnitude 5.8 earthquake struck 84 km SSE of Old Harbor, Alaska on Thu, Aug 6, 1964, 8:24 AM GMT-10 (18:24 UTC), 28 km (18 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), moderate
- Local time
- UTC
- 1964-08-06 18:24:49 UTC
- Depth
- 28.4 km (17.6 mi), shallow
- Epicenter
- 56.486° N, 152.851° 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
- ±0.26
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.8 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem864966. Read Tue, Sep 29, 2026, 5:19 PM UTC.