M4.3 earthquake 97 km SE of Old Harbor, Alaska
A magnitude 4.3 earthquake struck 97 km SE of Old Harbor, Alaska on Wed, Jul 31, 1974, 10:10 PM GMT-9 (07:10 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M6.0 89 km SE 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
- 4.3 (mb), light
- Local time
- UTC
- 1974-08-01 07:10:47 UTC
- Depth
- 15.0 km (9.3 mi), shallow
- Epicenter
- 56.653° N, 152.053° 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.
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 9 in the 30 days before it.
After
- 3.9101 km SSE of Chiniak, Alaska · 19050 days ago · 33 km deep · 15 km away
- 4.2101 km SE of Old Harbor, Alaska · 19050 days ago · 16 km deep · 6 km away
- 3.899 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 9 km away
- 6.089 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 13 km away
- 4.192 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 5 km away
- 3.993 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 7 km away
- 3.893 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 5 km away
- 4.081 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 17 km away
- 4.058 km S of Chiniak, Alaska · 19049 days ago · 64 km deep · 51 km away
- 4.193 km SE of Old Harbor, Alaska · 19049 days ago · 36 km deep · 13 km away
- 4.1102 km SE of Old Harbor, Alaska · 19047 days ago · 33 km deep · 13 km away
- 4.393 km ESE of Old Harbor, Alaska · 19046 days ago · 40 km deep · 12 km away
- 4.788 km SE of Old Harbor, Alaska · 19045 days ago · 16 km deep · 28 km away
- 4.676 km SE of Old Harbor, Alaska · 19045 days ago · 33 km deep · 23 km away
- 4.676 km SE of Old Harbor, Alaska · 19044 days ago · 32 km deep · 21 km away
- 5.386 km SE of Old Harbor, Alaska · 19044 days ago · 33 km deep · 16 km away
- 3.969 km SE of Old Harbor, Alaska · 19044 days ago · 67 km deep · 29 km away
- 4.675 km SE of Old Harbor, Alaska · 19044 days ago · 33 km deep · 23 km away
- 4.585 km ESE of Old Harbor, Alaska · 19044 days ago · 33 km deep · 16 km away
- 5.1105 km SSE of Chiniak, Alaska · 19003 days ago · 17 km deep · 26 km away
Before
- 4.486 km SE of Old Harbor, Alaska · 19050 days ago · 16 km deep · 11 km away
- 3.891 km SE of Old Harbor, Alaska · 19050 days ago · 27 km deep · 7 km away
- 4.386 km SE of Old Harbor, Alaska · 19050 days ago · 7 km deep · 11 km away
- 4.597 km SE of Old Harbor, Alaska · 19050 days ago · 19 km deep · 1 km away
- 3.898 km ESE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 11 km away
- 4.687 km SE of Old Harbor, Alaska · 19050 days ago · 15 km deep · 22 km away
- 6.394 km SE of Old Harbor, Alaska · 19050 days ago · 33 km deep · 4 km away
- 6.197 km SE of Old Harbor, Alaska · 19050 days ago · 10 km deep · 22 km away
- 4.690 km SE of Old Harbor, Alaska · 19050 days ago · 24 km deep · 8 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007ea. Read Sun, Sep 27, 2026, 7:14 AM UTC.