Alaska earthquakes

M5.5 earthquake 58 km ESE of Chenega, Alaska

A magnitude 5.5 earthquake struck 58 km ESE of Chenega, Alaska on Sun, Mar 29, 1964, 6:45 AM GMT-10 (16:45 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M6.0 78 km S of Cordova, Alaska. This one was a foreshock.

Cordova 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
5.5 (mw), moderate
Local time
UTC
1964-03-29 16:45:34 UTC
Depth
15.0 km (9.3 mi), shallow
Epicenter
59.818° N, 147.092° 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.

Magnitude uncertainty
±0.22
Depth from
From location

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 10 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 5.1103 km S of Chenega, Alaska · 22821 days ago · 26 km deep · 87 km away
  2. 6.078 km S of Cordova, Alaska · 22821 days ago · 11 km deep · 72 km away
  3. 5.658 km WSW of Cordova, Alaska · 22816 days ago · 15 km deep · 55 km away
  4. 6.067 km E of Chenega, Alaska · 22816 days ago · 25 km deep · 23 km away
  5. 5.552 km SSE of Chenega, Alaska · 22815 days ago · 20 km deep · 34 km away
  6. 5.866 km E of Chenega, Alaska · 22814 days ago · 15 km deep · 42 km away
  7. 5.687 km SE of Chenega, Alaska · 22811 days ago · 19 km deep · 34 km away
  8. 5.625 km SW of Cordova, Alaska · 22811 days ago · 14 km deep · 84 km away
  9. 5.626 km SSE of Chenega, Alaska · 22809 days ago · 15 km deep · 41 km away
  10. 5.541 km SW of Cordova, Alaska · 22789 days ago · 25 km deep · 68 km away

Before

  1. 5.775 km SE of Chenega, Alaska · 22822 days ago · 18 km deep · 22 km away
  2. 5.743 km WSW of Chenega, Alaska · 22822 days ago · 15 km deep · 89 km away
  3. 5.593 km S of Chenega, Alaska · 22823 days ago · 22 km deep · 75 km away
  4. 6.356 km WSW of Cordova, Alaska · 22823 days ago · 10 km deep · 62 km away
  5. 6.360 km SW of Cordova, Alaska · 22823 days ago · 10 km deep · 51 km away
  6. 5.749 km WSW of Cordova, Alaska · 22823 days ago · 25 km deep · 63 km away
  7. 6.125 km WSW of Chenega, Alaska · 22823 days ago · 20 km deep · 78 km away
  8. 6.1101 km SE of Chenega, Alaska · 22823 days ago · 15 km deep · 44 km away
  9. 5.723 km SSE of Chenega, Alaska · 22823 days ago · 15 km deep · 46 km away
  10. 5.7Southern Alaska · 22823 days ago · 15 km deep · 43 km away
  11. 5.765 km SSW of Cordova, Alaska · 22823 days ago · 15 km deep · 47 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem870101. Read Tue, Sep 22, 2026, 5:16 AM UTC.