Alaska earthquakes

M3.6 earthquake 73 km ESE of Sand Point, Alaska

A magnitude 3.6 earthquake struck 73 km ESE of Sand Point, Alaska on Wed, Jul 27, 2016, 5:51 AM AKDT (13:51 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M5.1 59 km ESE of Perryville, Alaska. This one was a foreshock.

Sand Point 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
3.6 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-07-27 13:51:04 UTC
Depth
28.0 km (17.4 mi), shallow
Epicenter
55.161° N, 159.378° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
3.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.077 · 22 stations
3.5ML, local (Richter)Alaska Earthquake CenterPreliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

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.

Location uncertainty
About 5.0 km horizontally, 12.6 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
129°
Stations used
82

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 34 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 us20006i31 (also filed as ak13807239, ak0169lvd3w3). Read Sat, Oct 3, 2026, 1:41 PM UTC.