Alaska earthquakes

M3.1 earthquake 254 km SW of Adak, Alaska

A magnitude 3.1 earthquake struck 254 km SW of Adak, Alaska on Sat, Jul 9, 2022, 1:11 AM HADT (10:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.4 200 km SSW of Adak, Alaska. This one was a foreshock.

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
3.1 (ml), minor
Local time
UTC
2022-07-09 10:11:24 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.169° N, 179.053° W
Region
Alaska
Strongest shaking
III, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
III, weak shaking
Peak ground acceleration
0.2% of gravity
Peak ground velocity
-1.9 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.6 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
257°, poorly surrounded by stations
Stations used
37

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.6Rat Islands, Aleutian Islands, Alaska · 1540 days ago · 10 km deep · 82 km away
  2. 2.9Rat Islands, Aleutian Islands, Alaska · 1539 days ago · 10 km deep · 82 km away
  3. 2.7255 km SSW of Adak, Alaska · 1537 days ago · 10 km deep · 54 km away
  4. 2.2288 km SW of Adak, Alaska · 1537 days ago · 30 km deep · 58 km away
  5. 1.7203 km WSW of Adak, Alaska · 1532 days ago · 6 km deep · 92 km away
  6. 2.9Rat Islands, Aleutian Islands, Alaska · 1522 days ago · 35 km deep · 95 km away
  7. 2.2257 km SSW of Adak, Alaska · 1521 days ago · 26 km deep · 65 km away
  8. 2.0260 km SSW of Adak, Alaska · 1515 days ago · 29 km deep · 38 km away
  9. 1.8261 km WSW of Adak, Alaska · 1515 days ago · 34 km deep · 95 km away
  10. 2.5257 km SW of Adak, Alaska · 1512 days ago · 10 km deep · 24 km away
  11. 2.6south of the Aleutian Islands · 1508 days ago · 16 km deep · 58 km away
  12. 2.2296 km SW of Adak, Alaska · 1507 days ago · 22 km deep · 47 km away
  13. 3.1271 km SW of Adak, Alaska · 1503 days ago · 36 km deep · 18 km away
  14. 2.7262 km SW of Adak, Alaska · 1500 days ago · 10 km deep · 8 km away
  15. 3.4200 km SSW of Adak, Alaska · 1500 days ago · 40 km deep · 82 km away
  16. 3.0328 km SW of Adak, Alaska · 1498 days ago · 10 km deep · 95 km away
  17. 2.7178 km SSW of Adak, Alaska · 1491 days ago · 10 km deep · 91 km away
  18. 1.9207 km WSW of Adak, Alaska · 1486 days ago · 9 km deep · 97 km away

Before

  1. 1.8216 km SW of Adak, Alaska · 1546 days ago · 25 km deep · 38 km away
  2. 2.7Andreanof Islands, Aleutian Islands, Alaska · 1548 days ago · 11 km deep · 89 km away
  3. 2.0192 km WSW of Adak, Alaska · 1553 days ago · 15 km deep · 100 km away
  4. 2.6264 km SW of Adak, Alaska · 1570 days ago · 10 km deep · 14 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000i18u (also filed as ak0228qe4oi9). Read Thu, Oct 1, 2026, 1:27 AM UTC.