M4.5 earthquake 61 km W of Adak, Alaska
A magnitude 4.5 earthquake struck 61 km W of Adak, Alaska on Wed, Jun 17, 1987, 10:02 AM HADT (19:02 UTC), 98 km (61 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-06-17 19:02:23 UTC
- Depth
- 98.2 km (61.0 mi), intermediate-depth
- Epicenter
- 51.969° N, 177.514° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
What happened
The USGS’s account of the effects of this earthquake.
Felt (III) on Adak.
From the USGS event page for usp00035vg. U.S. Geological Survey text and figures are in the public domain.
Did you feel it?
No one has reported feeling this quake to the USGS.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayAlaska earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00035vg. Read Fri, Oct 2, 2026, 12:03 PM UTC.