M5.8 earthquake 135 km SE of Halibut Cove, Alaska
A magnitude 5.8 earthquake struck 135 km SE of Halibut Cove, Alaska on Fri, Mar 27, 1964, 8:53 PM GMT-10 (06:53 UTC), 19 km (11 mi) below the surface.
A larger quake followed: M6.4 138 km SE of Halibut Cove, 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
- 1964-03-28 06:53:37 UTC
- Depth
- 18.5 km (11.5 mi), shallow
- Epicenter
- 58.746° N, 149.528° 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
- ±0.24
- 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: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 6.4138 km SE of Halibut Cove, Alaska · 22823 days ago · 20 km deep · 9 km away
- 5.5122 km ENE of Kodiak, Alaska · 22822 days ago · 23 km deep · 86 km away
- 5.6141 km SE of Halibut Cove, Alaska · 22821 days ago · 20 km deep · 12 km away
- 5.7125 km SE of Halibut Cove, Alaska · 22818 days ago · 22 km deep · 21 km away
- 5.5107 km ENE of Ouzinkie, Alaska · 22810 days ago · 18 km deep · 93 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem869831 (also filed as ushis2650). Read Tue, Sep 22, 2026, 8:42 AM UTC.