Alaska earthquakes

M5.1 earthquake 103 km S of Chenega, Alaska

A magnitude 5.1 earthquake struck 103 km S of Chenega, Alaska on Sun, Mar 29, 1964, 4:03 PM GMT-10 (02:03 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M5.7 125 km SE of Halibut Cove, Alaska. This one was a foreshock.

Seward 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
5.1 (mb), moderate
Local time
UTC
1964-03-30 02:03:04 UTC
Depth
26.0 km (16.2 mi), shallow
Epicenter
59.140° N, 147.860° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 and up: 4 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 5.7125 km SE of Halibut Cove, Alaska · 22818 days ago · 22 km deep · 94 km away
  2. 5.552 km SSE of Chenega, Alaska · 22816 days ago · 20 km deep · 58 km away
  3. 5.687 km SE of Chenega, Alaska · 22812 days ago · 19 km deep · 72 km away
  4. 5.626 km SSE of Chenega, Alaska · 22810 days ago · 15 km deep · 78 km away

Before

  1. 5.558 km ESE of Chenega, Alaska · 22822 days ago · 15 km deep · 87 km away
  2. 5.775 km SE of Chenega, Alaska · 22822 days ago · 18 km deep · 74 km away
  3. 5.743 km WSW of Chenega, Alaska · 22822 days ago · 15 km deep · 94 km away
  4. 6.054 km SE of Lowell Point, Alaska · 22823 days ago · 18 km deep · 83 km away
  5. 5.593 km S of Chenega, Alaska · 22823 days ago · 22 km deep · 12 km away
  6. 6.125 km WSW of Chenega, Alaska · 22823 days ago · 20 km deep · 100 km away
  7. 6.1101 km SE of Chenega, Alaska · 22823 days ago · 15 km deep · 91 km away
  8. 6.4138 km SE of Halibut Cove, Alaska · 22823 days ago · 20 km deep · 96 km away
  9. 5.723 km SSE of Chenega, Alaska · 22823 days ago · 15 km deep · 80 km away
  10. 5.7121 km S of Lowell Point, Alaska · 22823 days ago · 15 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ushis2668. Read Tue, Sep 22, 2026, 10:58 AM UTC.