Alaska earthquakes

M5.1 earthquake 83 km SSW of Atka, Alaska

A magnitude 5.1 earthquake struck 83 km SSW of Atka, Alaska on Mon, Jul 6, 1987, 11:22 AM HADT (20:22 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
5.1 (mb), moderate
Local time
UTC
1987-07-06 20:22:46 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.517° N, 174.724° 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 2.1 and up: 4 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.786 km SSW of Atka, Alaska · 14273 days ago · 33 km deep · 11 km away
  2. 4.660 km SSW of Atka, Alaska · 14271 days ago · 33 km deep · 23 km away
  3. 4.569 km SE of Adak, Alaska · 14267 days ago · 33 km deep · 86 km away
  4. 4.8110 km ESE of Adak, Alaska · 14266 days ago · 33 km deep · 43 km away

Before

  1. 4.644 km SW of Atka, Alaska · 14323 days ago · 33 km deep · 44 km away
  2. 5.083 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 16 km away
  3. 5.291 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 16 km away
  4. 4.265 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 18 km away
  5. 4.3159 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 78 km away
  6. 5.154 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 29 km away
  7. 5.984 km SSW of Atka, Alaska · 14323 days ago · 33 km deep · 1 km away
  8. 5.685 km SSW of Atka, Alaska · 14324 days ago · 33 km deep · 6 km away
  9. 5.388 km SSW of Atka, Alaska · 14324 days ago · 33 km deep · 6 km away
  10. 4.689 km SSE of Atka, Alaska · 14339 days ago · 33 km deep · 69 km away
  11. 4.975 km SW of Atka, Alaska · 14351 days ago · 33 km deep · 18 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00036ds. Read Tue, Sep 22, 2026, 8:20 AM UTC.