Alaska earthquakes

M2.1 earthquake 180 km SE of Unalaska, Alaska

A magnitude 2.1 earthquake struck 180 km SE of Unalaska, Alaska on Tue, Aug 4, 2020, 6:27 PM AKDT (02:27 UTC), 44 km (27 mi) below the surface.

A larger quake followed: M3.6 90 km SSE of Unalaska, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

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

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The earthquake

Magnitude
2.1 (ml), micro
Local time
UTC
2020-08-05 02:27:59 UTC
Depth
43.9 km (27.3 mi), shallow
Epicenter
52.540° N, 164.996° 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.

Stations used
19

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.9101 km SSE of Akutan, Alaska · 2244 days ago · 41 km deep · 83 km away
  2. 2.1141 km SE of Akutan, Alaska · 2235 days ago · 41 km deep · 74 km away
  3. 3.690 km SSE of Unalaska, Alaska · 2233 days ago · 35 km deep · 90 km away
  4. 2.7107 km SSE of Akutan, Alaska · 2229 days ago · 35 km deep · 83 km away
  5. 1.9123 km SE of Akutan, Alaska · 2219 days ago · 59 km deep · 85 km away
  6. 2.6135 km SE of Akutan, Alaska · 2214 days ago · 27 km deep · 81 km away
  7. 2.9104 km SSE of Akutan, Alaska · 2214 days ago · 20 km deep · 87 km away
  8. 1.8Fox Islands, Aleutian Islands, Alaska · 2211 days ago · 1 km deep · 79 km away
  9. 1.986 km SE of Unalaska, Alaska · 2206 days ago · 49 km deep · 95 km away
  10. 3.3192 km SSE of Unalaska, Alaska · 2192 days ago · 10 km deep · 37 km away

Before

  1. 2.2131 km SE of Akutan, Alaska · 2249 days ago · 55 km deep · 77 km away
  2. 2.3140 km SE of Akutan, Alaska · 2249 days ago · 50 km deep · 72 km away
  3. 1.8100 km SE of Unalaska, Alaska · 2250 days ago · 25 km deep · 80 km away
  4. 2.690 km SSE of Akutan, Alaska · 2252 days ago · 35 km deep · 97 km away
  5. 3.0139 km SE of Akutan, Alaska · 2256 days ago · 26 km deep · 100 km away
  6. 1.8139 km SE of Akutan, Alaska · 2266 days ago · 26 km deep · 93 km away
  7. 2.3232 km SE of Akutan, Alaska · 2274 days ago · 12 km deep · 100 km away
  8. 2.087 km SE of Unalaska, Alaska · 2276 days ago · 25 km deep · 95 km away
  9. 1.6102 km SSE of Akutan, Alaska · 2277 days ago · 56 km deep · 91 km away
  10. 3.2210 km S of Unalaska, Alaska · 2277 days ago · 10 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020a0kifry. Read Wed, Sep 30, 2026, 7:49 AM UTC.