Alaska earthquakes

M2.3 earthquake 109 km S of Sand Point, Alaska

A magnitude 2.3 earthquake struck 109 km S of Sand Point, Alaska on Sun, Aug 19, 2018, 8:00 PM AKDT (04:00 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.5 114 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.

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The earthquake

Magnitude: 2.3 (ml), micro
Local time: Sun, Aug 19, 2018, 8:00 PM AKDT
UTC: 2018-08-20 04:00:17 UTC
Depth: 25.9 km (16.1 mi), shallow
Epicenter: 54.369° N, 160.833° 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 3.7 km horizontally, 4.5 km in depth
Magnitude uncertainty: ±0.15
Depth from: From location
Station coverage gap: 225°, poorly surrounded by stations
Stations used: 22

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast110 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 68 in the 60 days after this one and 48 in the 30 days before it.

After

The first 60 of 68.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000h55c (also filed as ak018anr2adv, ak20237824, aacse018anr2adv). Read Wed, Sep 30, 2026, 1:49 PM UTC.