Alaska earthquakes

M2.6 earthquake 228 km SSE of False Pass, Alaska

A magnitude 2.6 earthquake struck 228 km SSE of False Pass, Alaska on Wed, Aug 16, 2023, 4:56 PM AKDT (00:56 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 233 km SSE of King Cove, Alaska. This one was a foreshock.

King Cove 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
2.6 (ml), micro
Local time
UTC
2023-08-17 00:56:19 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.915° N, 162.259° 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 8.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
257°, poorly surrounded by stations
Stations used
12

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 5 in the 30 days before it.

After

  1. 2.8143 km SSE of False Pass, Alaska · 1135 days ago · 10 km deep · 86 km away
  2. 3.3206 km S of King Cove, Alaska · 1132 days ago · 10 km deep · 47 km away
  3. 2.8153 km S of False Pass, Alaska · 1126 days ago · 35 km deep · 97 km away
  4. 3.5233 km SSE of King Cove, Alaska · 1124 days ago · 18 km deep · 86 km away
  5. 3.0240 km SE of Akutan, Alaska · 1112 days ago · 16 km deep · 96 km away
  6. 3.3244 km SE of Akutan, Alaska · 1098 days ago · 10 km deep · 65 km away
  7. 3.0161 km S of False Pass, Alaska · 1092 days ago · 27 km deep · 94 km away
  8. 3.0south of Alaska · 1086 days ago · 18 km deep · 87 km away
  9. 2.7228 km SSE of False Pass, Alaska · 1083 days ago · 10 km deep · 27 km away
  10. 2.6204 km SSE of False Pass, Alaska · 1082 days ago · 10 km deep · 35 km away
  11. 2.8159 km S of False Pass, Alaska · 1081 days ago · 10 km deep · 90 km away
  12. 2.7191 km SSE of False Pass, Alaska · 1080 days ago · 10 km deep · 45 km away

Before

  1. 3.0205 km S of King Cove, Alaska · 1160 days ago · 10 km deep · 49 km away
  2. 2.5139 km SSE of False Pass, Alaska · 1160 days ago · 29 km deep · 92 km away
  3. 2.7284 km SSE of King Cove, Alaska · 1165 days ago · 10 km deep · 82 km away
  4. 2.7171 km S of False Pass, Alaska · 1165 days ago · 26 km deep · 90 km away
  5. 3.0Unimak Island region, Alaska · 1168 days ago · 10 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000krak (also filed as ak023aiqeiu1). Read Tue, Sep 29, 2026, 10:42 AM UTC.