M4.5 earthquake 71 km ESE of Adak, Alaska
A magnitude 4.5 earthquake struck 71 km ESE of Adak, Alaska on Fri, Oct 24, 1997, 7:30 PM HADT (04:30 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 42 km ESE 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 (Ms, surface-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-10-25 04:30:50 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.568° N, 175.718° 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: 8 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.555 km SSE of Adak, Alaska · 10566 days ago · 33 km deep · 49 km away
- 5.242 km ESE of Adak, Alaska · 10546 days ago · 51 km deep · 33 km away
- 4.131 km ESE of Adak, Alaska · 10537 days ago · 61 km deep · 41 km away
- 4.495 km S of Adak, Alaska · 10537 days ago · 33 km deep · 77 km away
- 4.683 km S of Adak, Alaska · 10532 days ago · 33 km deep · 88 km away
- 4.280 km SSE of Adak, Alaska · 10531 days ago · 33 km deep · 45 km away
- 3.468 km SE of Adak, Alaska · 10524 days ago · 33 km deep · 14 km away
- 3.764 km ESE of Adak, Alaska · 10509 days ago · 33 km deep · 9 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00089jx. Read Fri, Oct 2, 2026, 1:48 AM UTC.