M4.7 earthquake 108 km SSW of False Pass, Alaska
A magnitude 4.7 earthquake struck 108 km SSW of False Pass, Alaska on Fri, Jun 26, 1987, 8:36 AM AKDT (16:36 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 94 km E of Akutan, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb), light
- Local time
- UTC
- 1987-06-26 16:36:28 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 53.920° N, 163.868° 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
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.6Unimak Island region, Alaska · 14337 days ago · 33 km deep · 22 km away
- 4.6108 km SE of False Pass, Alaska · 14335 days ago · 33 km deep · 94 km away
- 4.376 km ESE of Akutan, Alaska · 14319 days ago · 33 km deep · 55 km away
- 4.894 km E of Akutan, Alaska · 14316 days ago · 33 km deep · 33 km away
- 4.8124 km S of False Pass, Alaska · 14309 days ago · 33 km deep · 24 km away
Before
- 4.984 km SE of False Pass, Alaska · 14345 days ago · 33 km deep · 93 km away
- 4.878 km SSE of False Pass, Alaska · 14345 days ago · 33 km deep · 81 km away
- 5.582 km SE of False Pass, Alaska · 14345 days ago · 33 km deep · 92 km away
- 6.588 km SE of False Pass, Alaska · 14345 days ago · 34 km deep · 89 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000363g. Read Tue, Sep 29, 2026, 11:01 AM UTC.