Alaska earthquakes

M1.7 earthquake 143 km SSE of Alcan Border, Alaska

A magnitude 1.7 earthquake struck 143 km SSE of Alcan Border, Alaska on Tue, Aug 18, 2020, 11:09 AM AKDT (19:09 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.1 143 km WNW of Haines Junction, Canada. 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
1.7 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-08-18 19:09:37 UTC
Depth
2.6 km (1.6 mi), shallow
Epicenter
61.548° N, 139.811° 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
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 1.8129 km SSE of Alcan Border, Alaska · 2236 days ago · 2 km deep · 13 km away
  2. 1.5152 km E of McCarthy, Alaska · 2234 days ago · 6 km deep · 24 km away
  3. 1.5101 km ESE of McCarthy, Alaska · 2231 days ago · 6 km deep · 75 km away
  4. 1.9145 km WNW of Haines Junction, Canada · 2231 days ago · 2 km deep · 47 km away
  5. 3.1143 km WNW of Haines Junction, Canada · 2230 days ago · 10 km deep · 46 km away
  6. 1.6146 km WNW of Haines Junction, Canada · 2230 days ago · 1 km deep · 46 km away
  7. 2.173 km E of McCarthy, Alaska · 2229 days ago · 1 km deep · 92 km away
  8. 1.5104 km E of McCarthy, Alaska · 2225 days ago · 3 km deep · 62 km away
  9. 1.6119 km ESE of McCarthy, Alaska · 2204 days ago · 5 km deep · 60 km away
  10. 1.5150 km E of McCarthy, Alaska · 2186 days ago · 3 km deep · 41 km away
  11. 1.7Southern Alaska · 2177 days ago · 6 km deep · 97 km away

Before

  1. 1.9134 km WNW of Haines Junction, Canada · 2256 days ago · 3 km deep · 31 km away
  2. 1.997 km E of McCarthy, Alaska · 2260 days ago · 2 km deep · 69 km away
  3. 1.5129 km WNW of Haines Junction, Canada · 2264 days ago · 9 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020amcid0d. Read Sat, Oct 3, 2026, 10:49 AM UTC.