M5.8 earthquake 102 km SE of Old Harbor, Alaska
A magnitude 5.8 earthquake struck 102 km SE of Old Harbor, Alaska on Wed, May 6, 1964, 5:26 AM GMT-10 (15:26 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M6.2 97 km SSE 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
- 5.8 (mw), moderate
- Local time
- UTC
- 1964-05-06 15:26:39 UTC
- Depth
- 20.7 km (12.9 mi), shallow
- Epicenter
- 56.545° N, 152.120° 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
- ±0.21
- 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: 1 in the 60 days after this one and 6 in the 30 days before it.
After
Before
- 5.645 km SSE of Chiniak, Alaska · 22797 days ago · 25 km deep · 81 km away
- 6.199 km SSE of Old Harbor, Alaska · 22803 days ago · 10 km deep · 55 km away
- 6.495 km S of Old Harbor, Alaska · 22804 days ago · 23 km deep · 58 km away
- 5.5111 km SSE of Old Harbor, Alaska · 22807 days ago · 11 km deep · 26 km away
- 5.7133 km SE of Old Harbor, Alaska · 22808 days ago · 15 km deep · 32 km away
- 6.398 km SE of Old Harbor, Alaska · 22808 days ago · 10 km deep · 15 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem867505 (also filed as ushis2699). Read Tue, Sep 22, 2026, 8:03 AM UTC.