M4.5 earthquake 82 km SW of Adak, Alaska
A magnitude 4.5 earthquake struck 82 km SW of Adak, Alaska on Sun, Aug 31, 1997, 4:54 PM HADT (01:54 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M6.4 99 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-09-01 01:54:06 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.465° N, 177.626° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearby
Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.7139 km SW of Adak, Alaska · 10622 days ago · 33 km deep · 57 km away
- 4.646 km SSW of Adak, Alaska · 10622 days ago · 33 km deep · 54 km away
- 4.9Andreanof Islands, Aleutian Islands, Alaska · 10609 days ago · 53 km deep · 53 km away
- 4.271 km SSW of Adak, Alaska · 10608 days ago · 33 km deep · 53 km away
- 4.555 km SSE of Adak, Alaska · 10606 days ago · 33 km deep · 99 km away
- 4.9113 km WSW of Adak, Alaska · 10585 days ago · 33 km deep · 37 km away
- 4.587 km SW of Adak, Alaska · 10583 days ago · 33 km deep · 6 km away
- 4.6136 km WSW of Adak, Alaska · 10581 days ago · 33 km deep · 56 km away
- 6.499 km WSW of Adak, Alaska · 10579 days ago · 22 km deep · 18 km away
- 4.7107 km SW of Adak, Alaska · 10577 days ago · 33 km deep · 26 km away
- 4.1106 km W of Adak, Alaska · 10575 days ago · 110 km deep · 73 km away
- 4.555 km SSE of Adak, Alaska · 10566 days ago · 33 km deep · 88 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00086zs. Read Thu, Oct 1, 2026, 6:53 PM UTC.