M4.9 earthquake 109 km ESE of Akutan, Alaska
A magnitude 4.9 earthquake struck 109 km ESE of Akutan, Alaska on Fri, May 12, 1978, 7:00 AM GMT-9 (16:00 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mb), light
- Local time
- UTC
- 1978-05-12 16:00:37 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 53.924° N, 164.137° 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
- Stations used
- 23
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.465 km SSW of False Pass, Alaska · 17662 days ago · 33 km deep · 49 km away
- 4.9129 km S of False Pass, Alaska · 17606 days ago · 33 km deep · 43 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000uh5. Read Tue, Sep 22, 2026, 8:52 AM UTC.