Alaska earthquakes

M6.6 earthquake 85 km SE of Sand Point, Alaska

A magnitude 6.6 earthquake struck 85 km SE of Sand Point, Alaska on Wed, Oct 9, 1985, 1:33 AM AKDT (09:33 UTC), 30 km (19 mi) below the surface.

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: 6.6 (mw), strong
Local time: Wed, Oct 9, 1985, 1:33 AM AKDT
UTC: 1985-10-09 09:33:32 UTC
Depth: 30.2 km (18.8 mi), shallow
Epicenter: 54.765° N, 159.613° W
Region: Alaska
Strongest shaking: VI, strong shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: VI, strong shaking
Peak ground acceleration: 18.3% of gravity
Peak ground velocity: 2.4 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast85 kmSE

Nearby

Within 100 km, magnitude 2.5 and up: 9 in the 60 days after this one and 1 in the 30 days before it.

After

Before

4.881 km SE of Sand Point, AlaskaWed, Sep 25, 8:29 AM AKDT · 14972 days ago · 33 km deep · 7 km away

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002kmh (also filed as gcmtc100985b, ushis3905, gcmt19851009093332, iscgem512933). Read Tue, Sep 22, 2026, 8:44 AM UTC.