Alaska earthquakes

M5.0 earthquake 226 km WSW of Adak, Alaska

A magnitude 5.0 earthquake struck 226 km WSW of Adak, Alaska on Sun, May 10, 1987, 12:39 AM HADT (09:39 UTC), 33 km (21 mi) below the surface.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
5.0 (mb), moderate
Local time
UTC
1987-05-10 09:39:06 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.394° N, 179.820° 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 2.0 and up: 5 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.8289 km WSW of Adak, Alaska · 14354 days ago · 33 km deep · 63 km away
  2. 4.8248 km WSW of Adak, Alaska · 14353 days ago · 33 km deep · 64 km away
  3. 4.7192 km WSW of Adak, Alaska · 14352 days ago · 33 km deep · 49 km away
  4. 4.6145 km WSW of Adak, Alaska · 14324 days ago · 33 km deep · 94 km away
  5. 4.7278 km WSW of Adak, Alaska · 14321 days ago · 33 km deep · 52 km away

Before

  1. 4.8236 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 10 km away
  2. 4.9243 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 46 km away
  3. 4.8246 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 38 km away
  4. 4.8246 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 57 km away
  5. 4.4244 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 29 km away
  6. 5.1249 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 46 km away
  7. 4.9245 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 25 km away
  8. 4.5298 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 92 km away
  9. 5.2239 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 36 km away
  10. 5.3262 km WSW of Adak, Alaska · 14384 days ago · 33 km deep · 64 km away
  11. 6.8235 km WSW of Adak, Alaska · 14384 days ago · 20 km deep · 15 km away
  12. 4.3190 km WSW of Adak, Alaska · 14406 days ago · 33 km deep · 71 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00034vy (also filed as ushis4022). Read Tue, Sep 22, 2026, 10:29 AM UTC.