Alaska earthquakes

M4.3 earthquake 180 km S of Sand Point, Alaska

A magnitude 4.3 earthquake struck 180 km S of Sand Point, Alaska on Fri, Oct 30, 2020, 7:19 PM AKDT (03:19 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M5.3 203 km S of Sand Point, Alaska. 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: 4.3 (mb), light
Local time: Fri, Oct 30, 2020, 7:19 PM AKDT
UTC: 2020-10-31 03:19:37 UTC
Depth: 17.6 km (10.9 mi), shallow
Epicenter: 53.741° N, 159.979° 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 4.8 km horizontally, 5.2 km in depth
Magnitude uncertainty: ±0.08
Depth from: From location
Station coverage gap: 136°
Stations used: 86

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast181 kmS

Nearby

Within 100 km, magnitude 1.5 and up: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 202.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c8hk (also filed as ak020e0gtauy). Read Mon, Sep 28, 2026, 3:01 PM UTC.