TREMORlive seismic monitorOpen the live globe →

M3.9 earthquake — 68 km S of Unalaska, Alaska

M3.9 earthquake near 68 km S of Unalaska, Alaska

An magnitude 3.9 earthquake occurred 68 km S of Unalaska, Alaska on Nov 5, 2026 at 08:32 UTC. The epicenter was at a depth of 41 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.

Event data

MagnitudeM3.9
Depth40.6 km
Coordinates53.263, -166.499
TimeNov 5, 08:32 UTC
Location68 km S of Unalaska, Alaska
USGS event IDus7000twb4

What this magnitude typically means

Minor earthquakes are often felt close to the epicenter but almost never cause damage. Whether you feel one at all depends on how near and how shallow it is. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.

Nearby recent earthquakes

MagnitudeDistanceTime (UTC)Location
M2.553 kmNov 3, 23:10 UTC79 km SW of Unalaska, Alaska
M2.557 kmNov 3, 18:12 UTC55 km SE of Unalaska, Alaska
M3.069 kmOct 30, 19:53 UTC7 km W of Dutch Harbor, Alaska
M3.176 kmNov 3, 06:12 UTC143 km S of Unalaska, Alaska
M2.986 kmNov 1, 05:47 UTC85 km SSE of Akutan, Alaska
M2.589 kmOct 30, 10:30 UTC66 km SSE of Akutan, Alaska

Earthquake activity in this area

Alaska
See this quake on the live 3D globeShakeMap, seismogram and aftershock forecastGet earthquake alertsWatchlists with email, push and Slack

Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.