Alaska earthquakes

M3.0 earthquake 280 km SW of Adak, Alaska

A magnitude 3.0 earthquake struck 280 km SW of Adak, Alaska on Sat, Mar 7, 2020, 6:36 AM GMT-12 (18:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 249 km WSW of Adak, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
3.0 (ml), minor
Local time
UTC
2020-03-07 18:36:53 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.117° N, 179.503° 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.

Location uncertainty
About 4.0 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
275°, poorly surrounded by stations
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.9239 km WSW of Adak, Alaska · 2395 days ago · 5 km deep · 97 km away
  2. 2.6249 km SSW of Adak, Alaska · 2393 days ago · 10 km deep · 70 km away
  3. 3.3256 km SW of Adak, Alaska · 2391 days ago · 10 km deep · 28 km away
  4. 2.0211 km WSW of Adak, Alaska · 2390 days ago · 10 km deep · 98 km away
  5. 2.4Rat Islands, Aleutian Islands, Alaska · 2388 days ago · 29 km deep · 100 km away
  6. 2.6242 km WSW of Adak, Alaska · 2380 days ago · 11 km deep · 98 km away
  7. 1.7248 km WSW of Adak, Alaska · 2369 days ago · 13 km deep · 100 km away
  8. 3.9249 km WSW of Adak, Alaska · 2365 days ago · 10 km deep · 98 km away
  9. 2.6220 km WSW of Adak, Alaska · 2357 days ago · 10 km deep · 93 km away
  10. 3.3242 km WSW of Adak, Alaska · 2356 days ago · 10 km deep · 90 km away
  11. 2.3245 km WSW of Adak, Alaska · 2354 days ago · 26 km deep · 99 km away
  12. 3.9261 km WSW of Adak, Alaska · 2353 days ago · 10 km deep · 79 km away
  13. 3.0239 km WSW of Adak, Alaska · 2353 days ago · 10 km deep · 95 km away
  14. 3.4221 km WSW of Adak, Alaska · 2349 days ago · 10 km deep · 82 km away
  15. 2.0207 km SW of Adak, Alaska · 2339 days ago · 27 km deep · 88 km away

Before

  1. 4.1240 km WSW of Adak, Alaska · 2401 days ago · 10 km deep · 96 km away
  2. 3.5239 km WSW of Adak, Alaska · 2403 days ago · 10 km deep · 100 km away
  3. 2.8240 km WSW of Adak, Alaska · 2404 days ago · 10 km deep · 99 km away
  4. 2.8216 km WSW of Adak, Alaska · 2413 days ago · 9 km deep · 85 km away
  5. 2.5215 km WSW of Adak, Alaska · 2413 days ago · 10 km deep · 88 km away
  6. 3.3219 km WSW of Adak, Alaska · 2413 days ago · 10 km deep · 80 km away
  7. 2.9212 km WSW of Adak, Alaska · 2413 days ago · 10 km deep · 90 km away
  8. 4.6216 km WSW of Adak, Alaska · 2413 days ago · 10 km deep · 86 km away
  9. 5.3216 km WSW of Adak, Alaska · 2413 days ago · 10 km deep · 82 km away · tsunami flag
  10. 3.0294 km SW of Adak, Alaska · 2415 days ago · 10 km deep · 55 km away
  11. 2.8273 km SW of Adak, Alaska · 2418 days ago · 10 km deep · 8 km away
  12. 2.8219 km WSW of Adak, Alaska · 2418 days ago · 6 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70008jhf (also filed as ak020333xw3g). Read Wed, Sep 30, 2026, 9:25 PM UTC.