South Sandwich Islands Region — A magnitude 5.4 earthquake struck the remote South Sandwich Islands region Wednesday night, the U.S. Geological Survey reports.

What happened:

The earthquake hit at 9:45 PM Central Time on Wednesday, November 11. The USGS placed the quake about 122 kilometers deep, roughly 76 miles below the surface, in the island chain in the South Atlantic Ocean.

Impacts:

No felt reports have come in, and no damage has been reported. The islands are remote and uninhabited. The USGS reports no tsunami threat from this earthquake.

What to do:

If you feel shaking, drop to the ground, take cover under a sturdy table or desk, and hold on until the shaking stops.

Stay away from windows, heavy furniture, and anything that could fall.

Check for hazards such as gas leaks or damaged power lines after the shaking ends.

Be ready for aftershocks, which can follow a larger quake.

Source: U.S. Geological Survey (USGS), November 11, 2026.