M4.6 earthquake 114 km SSW of Unalaska, Alaska
A magnitude 4.6 earthquake struck 114 km SSW of Unalaska, Alaska on Fri, May 25, 1979, 9:10 AM GMT-9 (18:10 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 117 km E of Nikolski, 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
- 1979-05-25 18:10:43 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 52.901° N, 167.089° 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
- 42
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 10 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.5120 km SSW of Unalaska, Alaska · 17296 days ago · 26 km deep · 16 km away
- 4.6116 km E of Nikolski, Alaska · 17296 days ago · 33 km deep · 5 km away
- 4.7118 km ESE of Nikolski, Alaska · 17295 days ago · 33 km deep · 25 km away
- 4.4126 km E of Nikolski, Alaska · 17294 days ago · 33 km deep · 17 km away
- 4.699 km SSW of Unalaska, Alaska · 17287 days ago · 33 km deep · 16 km away
- 4.5104 km SSW of Unalaska, Alaska · 17279 days ago · 40 km deep · 10 km away
- 5.1117 km E of Nikolski, Alaska · 17257 days ago · 33 km deep · 8 km away
- 4.9126 km S of Unalaska, Alaska · 17256 days ago · 21 km deep · 23 km away
- 3.833 km WSW of Unalaska, Alaska · 17247 days ago · 33 km deep · 90 km away
- 4.1105 km S of Unalaska, Alaska · 17239 days ago · 33 km deep · 39 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00010w1. Read Fri, Oct 2, 2026, 5:19 PM UTC.