Major earthquakes

Current scope: the USGS Significant Earthquakes, Past Week feed. This is not a complete global disaster catalogue.

USGS public feed

Earthquake
11:27Current source retrievalreviewed source status

M 6.3 - 84 km SSW of Nikolski, Alaska

84 km SSW of Nikolski, Alaska

Source: USGS · Find a national disaster authority · Last successful source update: 2026-09-07 · 11:02:20.559Z

↗

Map context

Loading optional map context…

Map unavailable. The interactive map is unavailable because scripting is disabled. The event list remains available with locations and evidence links. Use the event list

1 signal in view.

View definition

How is Major defined?

Major is a display filter for magnitude 5.5 or greater within the current USGS Significant Earthquakes, Past Week feed. It is not a universal severity scale, damage estimate or official alert category. Magnitude, location and source status remain attributable to USGS, and an event can still be consequential even when it does not appear here.

Independent service

What should I do with this information?

Use it to inspect source evidence. For warnings or protective action, open the source record and follow the responsible national or local authority.

Find national authority ↗