Alaska earthquakes

M2.6 earthquake 125 km SSW of McCarthy, Alaska

A magnitude 2.6 earthquake struck 125 km SSW of McCarthy, Alaska on Mon, Sep 28, 2020, 12:47 AM AKDT (08:47 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.7 97 km S of McCarthy, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.6 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-09-28 08:47:40 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
60.343° N, 143.477° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.6ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.8ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.035 · 110 stations

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
71

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.635 km ESE of Cordova, Alaska · 2194 days ago · 11 km deep · 92 km away
  2. 1.6101 km S of McCarthy, Alaska · 2189 days ago · 8 km deep · 39 km away
  3. 1.698 km E of Cordova, Alaska · 2186 days ago · 16 km deep · 36 km away
  4. 1.6103 km S of McCarthy, Alaska · 2184 days ago · 3 km deep · 30 km away
  5. 2.0122 km S of McCarthy, Alaska · 2178 days ago · 9 km deep · 25 km away
  6. 2.5123 km SSW of McCarthy, Alaska · 2177 days ago · 3 km deep · 2 km away
  7. 1.9124 km SSW of McCarthy, Alaska · 2177 days ago · 5 km deep · 1 km away
  8. 2.0163 km SE of Cordova, Alaska · 2169 days ago · 106 km deep · 74 km away
  9. 2.797 km S of McCarthy, Alaska · 2164 days ago · 10 km deep · 48 km away
  10. 2.0122 km S of McCarthy, Alaska · 2162 days ago · 11 km deep · 21 km away
  11. 2.696 km S of McCarthy, AK · 2159 days ago · 15 km deep · 48 km away
  12. 1.6136 km WNW of Yakutat, Alaska · 2140 days ago · 6 km deep · 96 km away

Before

  1. 2.080 km SE of Cordova, Alaska · 2196 days ago · 14 km deep · 66 km away
  2. 1.6120 km SSE of McCarthy, Alaska · 2199 days ago · 6 km deep · 98 km away
  3. 1.7103 km S of McCarthy, Alaska · 2199 days ago · 1 km deep · 28 km away
  4. 2.3107 km SSW of McCarthy, Alaska · 2204 days ago · 11 km deep · 18 km away
  5. 1.5Southern Alaska · 2208 days ago · 7 km deep · 44 km away
  6. 1.6131 km S of McCarthy, Alaska · 2214 days ago · 13 km deep · 15 km away
  7. 1.8129 km S of McCarthy, Alaska · 2215 days ago · 9 km deep · 11 km away
  8. 2.396 km S of McCarthy, Alaska · 2216 days ago · 17 km deep · 48 km away
  9. 2.3127 km S of McCarthy, Alaska · 2219 days ago · 12 km deep · 11 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020chz80y7 (also filed as us6000c23k). Read Thu, Oct 1, 2026, 2:10 PM UTC.