M6.4 earthquake in South Sandwich Islands region on July 11, 2026

A magnitude 6.4 earthquake struck on July 11, 2026 at 10:26 UTC. According to USGS the epicenter was South Sandwich Islands region, at a depth of 26 km. It was a shallow quake, and shallow quakes are usually felt most strongly at the surface.

6.4magnitude

26 kmdepth

10:26time UTC

greenUSGS alert

Live earthquake map →

Key facts

The USGS PAGER system issued a green alert, expecting little impact.

Nearest cities

Punta Arenas (Chile)2,693 km
Comodoro Rivadavia (Argentina)2,877 km
Tandil (Argentina)3,034 km
Maldonado (Uruguay)3,034 km
Montevideo (Uruguay)3,096 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 19 quakes of magnitude 4.5 or more within 150 km, the strongest M6.2.

M6.2 · Sep 2, 23:46 UTC89 km
M5.1 · Oct 19, 17:45 UTC146 km
M5.1 · Jul 29, 10:30 UTC107 km
M5.0 · Oct 22, 00:25 UTC125 km
M5.0 · Sep 19, 09:59 UTC49 km
M4.9 · Oct 7, 04:39 UTC68 km
M4.9 · Sep 29, 06:38 UTC50 km
M4.8 · Sep 28, 15:02 UTC80 km

Regional history

Since 1976 there have been 52 earthquakes of magnitude 6 or more within 300 km. The strongest was M7.4 (August 19, 2016).

M7.4 · August 19, 2016189 km
M7.2 · May 28, 2016146 km
M7.2 · December 27, 1991234 km
M6.9 · September 6, 200419 km
M6.9 · June 29, 201435 km