Alaska earthquakes

M5.8 earthquake 33 km ESE of Bear Creek, Alaska

A magnitude 5.8 earthquake struck 33 km ESE of Bear Creek, Alaska on Fri, Mar 27, 1964, 8:08 PM GMT-10 (06:08 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M6.1 25 km WSW of Chenega, Alaska. This one was a foreshock.

Bear Creek 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
5.8 (mw), moderate
Local time
UTC
1964-03-28 06:08:43 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
60.106° N, 148.798° W
Region
Alaska
Strongest shaking
VII, very strong shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
VII, very strong shaking
Peak ground acceleration
28.1% of gravity
Peak ground velocity
2.8 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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
±0.35
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 1 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem869822 (also filed as ushis2646). Read Tue, Sep 22, 2026, 8:44 AM UTC.