Alaska earthquakes

M1.8 earthquake 15 km SSE of Susitna, Alaska

A magnitude 1.8 earthquake struck 15 km SSE of Susitna, Alaska on Tue, Apr 4, 2017, 6:33 AM AKDT (14:33 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M5.2 32 km WNW of Nikiski, Alaska. This one was a foreshock.

Point MacKenzie 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
1.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-04-04 14:33:53 UTC
Depth
11.6 km (7.2 mi), shallow
Epicenter
61.411° N, 150.430° W
Region
Alaska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 126 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0174bp1vmx (also filed as ak15679701). Read Mon, Oct 5, 2026, 9:45 AM UTC.