M4.4 earthquake 279 km WSW of Adak, Alaska
A magnitude 4.4 earthquake struck 279 km WSW of Adak, Alaska on Sat, Mar 7, 1987, 3:37 AM GMT+12 (15:37 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.8 280 km WSW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 1987-03-06 15:37:32 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 51.304° N, 179.444° E
- 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
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
- 4.8280 km WSW of Adak, Alaska · 14444 days ago · 33 km deep · 37 km away
- 5.1278 km WSW of Adak, Alaska · 14444 days ago · 33 km deep · 25 km away
- 4.6Rat Islands, Aleutian Islands, Alaska · 14438 days ago · 33 km deep · 29 km away
- 4.7242 km WSW of Adak, Alaska · 14412 days ago · 33 km deep · 36 km away
Before
- 4.5299 km WSW of Adak, Alaska · 14445 days ago · 33 km deep · 28 km away
- 5.7274 km WSW of Adak, Alaska · 14445 days ago · 54 km deep · 21 km away
- 5.4193 km WSW of Adak, Alaska · 14461 days ago · 33 km deep · 88 km away
- 6.2194 km WSW of Adak, Alaska · 14461 days ago · 33 km deep · 89 km away
- 4.8Rat Islands, Aleutian Islands, Alaska · 14468 days ago · 33 km deep · 47 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp000331p. Read Tue, Sep 22, 2026, 3:54 AM UTC.