Alaska earthquakes

M4.0 earthquake 83 km SSW of Sand Point, Alaska

A magnitude 4.0 earthquake struck 83 km SSW of Sand Point, Alaska on Sat, Sep 26, 2020, 8:08 PM AKDT (04:08 UTC), 31 km (19 mi) below the surface.

A larger quake followed: M7.6 2020 Sand Point, Alaska Earthquake. This one was a foreshock.

Sand Point forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude: 4.0 (mb), light
Local time: Sat, Sep 26, 2020, 8:08 PM AKDT
UTC: 2020-09-27 04:08:21 UTC
Depth: 30.8 km (19.2 mi), shallow
Epicenter: 54.642° N, 160.980° 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.

Location uncertainty: About 3.5 km horizontally, 5.8 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 157°
Stations used: 60

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast83 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 130 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c1th (also filed as ak020cg92jnk). Read Sat, Sep 26, 2026, 9:45 PM UTC.