M3.9 earthquake 38 km WSW of Dutch Harbor, Alaska
A magnitude 3.9 earthquake struck 38 km WSW of Dutch Harbor, Alaska on Fri, Apr 24, 1987, 6:48 PM AKDT (02:48 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 31 km W of Dutch Harbor, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-04-25 02:48:30 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 53.806° N, 167.110° 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 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.731 km W of Dutch Harbor, Alaska · 14375 days ago · 33 km deep · 8 km away
- 4.641 km WSW of Unalaska, Alaska · 14372 days ago · 33 km deep · 5 km away
- 4.137 km WSW of Unalaska, Alaska · 14358 days ago · 33 km deep · 7 km away
- 4.535 km WSW of Unalaska, Alaska · 14357 days ago · 33 km deep · 6 km away
Before
- 4.476 km SW of Unalaska, Alaska · 14418 days ago · 33 km deep · 46 km away
- 4.563 km SW of Unalaska, Alaska · 14420 days ago · 33 km deep · 33 km away
- 5.168 km SW of Unalaska, Alaska · 14420 days ago · 33 km deep · 45 km away
- 4.669 km SW of Unalaska, Alaska · 14424 days ago · 33 km deep · 39 km away
- 4.241 km SW of Unalaska, Alaska · 14431 days ago · 10 km deep · 26 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00034ev. Read Sat, Oct 3, 2026, 4:29 PM UTC.