M6.3 earthquake in United States on September 3, 2026

A magnitude 6.3 earthquake struck on September 3, 2026 at 11:17 UTC. According to USGS the epicenter was 92 km south of Nikolski, at a depth of 21 km. It was a shallow quake, and shallow quakes are usually felt most strongly at the surface.

6.3magnitude

21 kmdepth

11:17time UTC

greenUSGS alert

Live earthquake map →

Key facts

3 people reported feeling it to USGS. The USGS PAGER system issued a green alert, expecting little impact. USGS flagged the event as an oceanic-region earthquake. Regional tsunami warning centers publish any tsunami information.

Nearest cities

Petropavlovsk-Kamchatskiy (Russia)2,147 km
Richmond (Canada)3,218 km
Burnaby (Canada)3,226 km
Saanich (Canada)3,231 km
Langley (Canada)3,253 km

Did you feel an earthquake?

Report it to seismologists. These reports help work out quickly where the shaking was strongest. It takes a minute.

Report to USGS (Did You Feel It?)Report to EMSC (LastQuake)

Aftershocks

Since then USGS has recorded 12 quakes of magnitude 4.5 or more within 150 km, the strongest M5.4.

M5.4 · Sep 3, 20:21 UTC19 km
M5.3 · Sep 3, 18:45 UTC18 km
M5.2 · Sep 3, 13:03 UTC15 km
M5.2 · Sep 3, 11:24 UTC19 km
M5.0 · Sep 3, 20:22 UTC29 km
M4.9 · Sep 5, 18:00 UTC7 km
M4.9 · Sep 3, 11:39 UTC8 km
M4.8 · Sep 3, 12:39 UTC16 km

Regional history

Since 1976 there have been 49 earthquakes of magnitude 6 or more within 300 km. The strongest was M7.3 (June 24, 2011).

M7.3 · June 24, 2011171 km
M6.9 · September 2, 2011161 km
M6.9 · July 27, 201525 km
M6.9 · March 24, 1980144 km
M6.9 · February 27, 1987200 km