M3.5 earthquake 75 km ESE of Adak, Alaska
A magnitude 3.5 earthquake struck 75 km ESE of Adak, Alaska on Mon, Jun 9, 1997, 11:20 PM HADT (08:20 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.3 76 km SW of Atka, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-06-10 08:20:20 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.532° N, 175.699° 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: 3 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.376 km SW of Atka, Alaska · 10668 days ago · 33 km deep · 51 km away
- 4.097 km SSE of Adak, Alaska · 10657 days ago · 33 km deep · 72 km away
- 4.393 km SSE of Adak, Alaska · 10657 days ago · 33 km deep · 66 km away
Before
- 3.939 km ENE of Adak, Alaska · 10719 days ago · 33 km deep · 60 km away
- 4.089 km S of Adak, Alaska · 10719 days ago · 33 km deep · 73 km away
- 4.324 km ENE of Adak, Alaska · 10721 days ago · 72 km deep · 66 km away
- 4.852 km S of Adak, Alaska · 10724 days ago · 44 km deep · 66 km away
- 4.088 km S of Adak, Alaska · 10724 days ago · 33 km deep · 84 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00083bt. Read Fri, Oct 2, 2026, 3:19 AM UTC.