M5.5 earthquake 3 km E of Kodiak, Alaska
A magnitude 5.5 earthquake struck 3 km E of Kodiak, Alaska on Sat, Mar 28, 1964, 12:33 AM GMT-10 (10:33 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M6.2 53 km ESE of Old Harbor, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mw), moderate
- Local time
- UTC
- 1964-03-28 10:33:00 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 57.787° N, 152.353° 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
- ±0.42
- 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: 8 in the 60 days after this one and 5 in the 30 days before it.
After
- 6.253 km ESE of Old Harbor, Alaska · 22829 days ago · 25 km deep · 83 km away
- 5.682 km ENE of Kodiak, Alaska · 22829 days ago · 22 km deep · 79 km away
- 5.668 km ESE of Chiniak, Alaska · 22829 days ago · 20 km deep · 83 km away
- 5.550 km ESE of Chiniak, Alaska · 22829 days ago · 21 km deep · 63 km away
- 5.647 km ESE of Chiniak, Alaska · 22813 days ago · 27 km deep · 60 km away
- 5.89 km ENE of Port Lions, Alaska · 22812 days ago · 22 km deep · 26 km away
- 5.541 km E of Chiniak, Alaska · 22810 days ago · 20 km deep · 49 km away
- 5.645 km SSE of Chiniak, Alaska · 22803 days ago · 25 km deep · 65 km away
Before
- 5.639 km ESE of Chiniak, Alaska · 22830 days ago · 23 km deep · 55 km away
- 5.884 km ENE of Kodiak, Alaska · 22830 days ago · 21 km deep · 82 km away
- 5.855 km SE of Chiniak, Alaska · 22830 days ago · 20 km deep · 72 km away
- 6.578 km ENE of Ouzinkie, Alaska · 22830 days ago · 25 km deep · 78 km away
- 5.925 km E of Old Harbor, Alaska · 22830 days ago · 25 km deep · 77 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem869890. Read Mon, Sep 28, 2026, 8:50 PM UTC.