M5.4 earthquake

South Sandwich Islands region

A magnitude 5.4 (moderate) earthquake struck South Sandwich Islands region on August 21, 2026 at 1:06 PM UTC, at a depth of 159 km.

Magnitude

5.4 mb

Depth

159 km

When

August 21, 2026 at 1:06 PM UTC

Coordinates

-58.851°, -26.557°

Review status

reviewed

Source: U.S. Geological Survey. Details may be revised as the event is reviewed.