Hazardly
Disasters · Earthquake

M6.3 · United States

First tracked 3 September 2026 · Last updated 4 September 2026

M6.3
Magnitude
35 km
Depth
Few people affected in MMI -
Exposure detail
Yes
Tsunami flag

An M6.3 earthquake occurred 81 km southwest of Nikolski, Alaska, at a depth of 35 km. The quake triggered a tsunami warning and generated 3 felt reports, with a PAGER alert level of green and an estimated population exposure of 2.

Source: USGS & GDACS · figures reported · Reviewed