⚠️ This earthquake carries a tsunami threat. Follow official guidance from your national agency.

5.5MAG

MODERATE EARTHQUAKE

204 km WSW of Port McNeill, Canada

2 hours ago

USGSAUTOMATICTSUNAMI THREAT

A magnitude 5.5 earthquake struck 204 km WSW of Port McNeill, Canada on 28 Sept 2026, 04:41 UTC. The hypocentre was 11 km below the surface — shallow by seismological convention. No felt reports have been received so far. The reporting agency flagged a tsunami threat for this event; follow official warnings rather than this page. This is an automatic solution that an analyst has not yet reviewed, so the magnitude and depth above may still change. 2 other earthquakes above our reporting threshold have been recorded within 250 km in the past 30 days.

Depth: 11 km
Latitude: 50.25°N
Time: 04:41 UTC
Magnitude: M5.5

EPICENTRE

View the official report↗

MAGNITUDE 5.5

Can damage poorly constructed buildings; well-built structures usually escape with little harm.

The scale is logarithmic: this released about 180 times the energy of a magnitude 4.0, roughly the energy of 3 thousand tonnes of TNT.

11 KM DEEP

Shallow earthquakes release their energy close to the surface, so they are felt more strongly, and do more damage, than deeper earthquakes of the same magnitude.