M4.8 earthquake 135 km S of Unalaska, Alaska
A magnitude 4.8 earthquake struck 135 km S of Unalaska, Alaska on Sun, Mar 30, 1980, 1:38 AM GMT-10 (11:38 UTC), 31 km (19 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1980-03-30 11:38:56 UTC
- Depth
- 31.0 km (19.3 mi), shallow
- Epicenter
- 52.656° N, 166.525° 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
- 33
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 1 in the 60 days after this one and 12 in the 30 days before it.
After
Before
- 4.983 km E of Nikolski, Alaska · 16987 days ago · 30 km deep · 83 km away
- 4.776 km ESE of Nikolski, Alaska · 16987 days ago · 33 km deep · 84 km away
- 4.484 km ESE of Nikolski, Alaska · 16988 days ago · 33 km deep · 76 km away
- 4.874 km E of Nikolski, Alaska · 16989 days ago · 45 km deep · 90 km away
- 4.696 km E of Nikolski, Alaska · 16990 days ago · 33 km deep · 64 km away
- 4.681 km ESE of Nikolski, Alaska · 16991 days ago · 33 km deep · 84 km away
- 4.984 km E of Nikolski, Alaska · 16991 days ago · 33 km deep · 76 km away
- 4.7151 km SE of Nikolski, Alaska · 16991 days ago · 33 km deep · 94 km away
- 5.077 km E of Nikolski, Alaska · 16991 days ago · 33 km deep · 84 km away
- 6.1102 km ESE of Nikolski, Alaska · 16991 days ago · 33 km deep · 63 km away
- 6.980 km E of Nikolski, Alaska · 16991 days ago · 33 km deep · 84 km away
- 4.980 km E of Nikolski, Alaska · 16991 days ago · 33 km deep · 80 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00016bs. Read Wed, Sep 30, 2026, 3:34 AM UTC.