M4.8 earthquake 248 km WSW of Adak, Alaska
A magnitude 4.8 earthquake struck 248 km WSW of Adak, Alaska on Sat, Jun 6, 1987, 12:48 AM GMT-12 (12:48 UTC), 33 km (21 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
- 1987-06-06 12:48:00 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 50.822° N, 179.785° 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
Nearby
Within 100 km, magnitude 1.8 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.7192 km WSW of Adak, Alaska · 14354 days ago · 33 km deep · 59 km away
- 4.7278 km WSW of Adak, Alaska · 14322 days ago · 33 km deep · 69 km away
- 4.8173 km WSW of Adak, AK · 14301 days ago · 33 km deep · 76 km away
- 4.6161 km WSW of Adak, Alaska · 14298 days ago · 33 km deep · 89 km away
- 4.8154 km WSW of Adak, Alaska · 14298 days ago · 33 km deep · 94 km away
- 4.3Rat Islands, Aleutian Islands, Alaska · 14294 days ago · 33 km deep · 83 km away
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00035jx. Read Wed, Sep 23, 2026, 2:07 PM UTC.