M4.3 earthquake 190 km WSW of Adak, Alaska
A magnitude 4.3 earthquake struck 190 km WSW of Adak, Alaska on Wed, May 15, 1974, 10:55 PM GMT-10 (08:55 UTC), 42 km (26 mi) below the surface.
A larger quake followed: M4.5 131 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1974-05-16 08:55:46 UTC
- Depth
- 42.0 km (26.1 mi), shallow
- Epicenter
- 51.057° N, 179.036° 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.
- Stations used
- 15
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00006d7. Read Fri, Oct 2, 2026, 9:32 PM UTC.