Update: Earthquake of 5.4 magnitude registered near South Sandwich Islands region on July 11

Published Jul 28, 2026

A 5.4 magnitude quake occurred close to South Sandwich Islands region on Saturday morning, the U.S. Geological Survey reported.

A tremor struck the area at 06:52 UTC (04:52 local time). The earthquake’s epicenter was of South Sandwich Islands region and occurred at a depth of 122 km.

Did you feel it?

Those who experienced the quake are encouraged to report it via the USGS Felt Report form.

Impact and estimated losses

The USGS categorized this as a Green Alert, which means there is a low likelihood of casualties and damage.

Structure information summary

Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction. The predominant vulnerable building types are adobe block with concrete bond beam and unreinforced brick with concrete floor construction.

Source: The U.S. Geological Survey