Alaska earthquakes

M5.5 earthquake 93 km S of Chenega, Alaska

A magnitude 5.5 earthquake struck 93 km S of Chenega, Alaska on Sat, Mar 28, 1964, 6:44 AM GMT-10 (16:44 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M6.0 54 km SE of Lowell Point, 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
5.5 (mw), moderate
Local time
UTC
1964-03-28 16:44:37 UTC
Depth
22.1 km (13.7 mi), shallow
Epicenter
59.235° N, 147.758° 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
±0.27
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: 9 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 6.054 km SE of Lowell Point, Alaska · 22829 days ago · 18 km deep · 80 km away
  2. 5.743 km WSW of Chenega, Alaska · 22829 days ago · 15 km deep · 88 km away
  3. 5.775 km SE of Chenega, Alaska · 22829 days ago · 18 km deep · 62 km away
  4. 5.558 km ESE of Chenega, Alaska · 22829 days ago · 15 km deep · 75 km away
  5. 5.1103 km S of Chenega, Alaska · 22828 days ago · 26 km deep · 12 km away
  6. 6.067 km E of Chenega, Alaska · 22823 days ago · 25 km deep · 98 km away
  7. 5.552 km SSE of Chenega, Alaska · 22823 days ago · 20 km deep · 46 km away
  8. 5.687 km SE of Chenega, Alaska · 22819 days ago · 19 km deep · 61 km away
  9. 5.626 km SSE of Chenega, Alaska · 22817 days ago · 15 km deep · 68 km away

Before

  1. 6.125 km WSW of Chenega, Alaska · 22830 days ago · 20 km deep · 92 km away
  2. 6.1101 km SE of Chenega, Alaska · 22830 days ago · 15 km deep · 80 km away
  3. 5.723 km SSE of Chenega, Alaska · 22830 days ago · 15 km deep · 70 km away
  4. 5.7Southern Alaska · 22830 days ago · 15 km deep · 90 km away
  5. 5.7121 km S of Lowell Point, Alaska · 22830 days ago · 15 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem869959. Read Tue, Sep 29, 2026, 7:33 AM UTC.