M4.6 earthquake 106 km SSW of Adak, Alaska
A magnitude 4.6 earthquake struck 106 km SSW of Adak, Alaska on Wed, Apr 30, 1997, 12:19 PM HADT (21:19 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 52 km S 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-04-30 21:19:30 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.002° N, 177.255° 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 1.6 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.8111 km S of Adak, Alaska · 10724 days ago · 33 km deep · 25 km away
- 4.088 km S of Adak, Alaska · 10724 days ago · 33 km deep · 42 km away
- 4.852 km S of Adak, Alaska · 10724 days ago · 44 km deep · 62 km away
- 4.089 km S of Adak, Alaska · 10718 days ago · 33 km deep · 56 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00081hm. Read Thu, Oct 1, 2026, 8:10 PM UTC.