M4.3 earthquake 48 km SSE of Adak, Alaska
A magnitude 4.3 earthquake struck 48 km SSE of Adak, Alaska on Tue, Apr 15, 1997, 4:36 AM HADT (13:36 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1997-04-15 13:36:47 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.481° N, 176.324° 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 2 in the 30 days before it.
After
- 2.844 km E of Adak, Alaska · 10759 days ago · 33 km deep · 46 km away
- 4.129 km S of Adak, Alaska · 10756 days ago · 64 km deep · 30 km away
- 3.259 km S of Adak, Alaska · 10754 days ago · 33 km deep · 27 km away
- 4.796 km SSW of Adak, Alaska · 10746 days ago · 33 km deep · 78 km away
- 4.6106 km SSW of Adak, Alaska · 10746 days ago · 33 km deep · 84 km away
- 3.8111 km S of Adak, Alaska · 10724 days ago · 33 km deep · 79 km away
- 4.088 km S of Adak, Alaska · 10723 days ago · 33 km deep · 51 km away
- 4.852 km S of Adak, Alaska · 10723 days ago · 44 km deep · 23 km away
- 4.324 km ENE of Adak, Alaska · 10721 days ago · 72 km deep · 55 km away
- 4.089 km S of Adak, Alaska · 10718 days ago · 33 km deep · 46 km away
- 3.939 km ENE of Adak, Alaska · 10718 days ago · 33 km deep · 61 km away
- 3.575 km ESE of Adak, Alaska · 10705 days ago · 33 km deep · 44 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00080mc. Read Thu, Oct 1, 2026, 4:54 PM UTC.