A magnitude 6.4 earthquake struck the South Sandwich Islands region on July 11, 2026, at 10:26 UTC, according to the United States Geological Survey (USGS). The epicenter was located at 55.542°S 28.853°W at a depth of 26 kilometers (16.16 miles), in a remote area of the South Atlantic Ocean.
The USGS assigned a GREEN alert level on the Prompt Assessment of Global Earthquakes for Response (PAGER) system, indicating minimal potential for significant health impacts and injuries. The South Sandwich Islands have sparse population centers, with the nearest inhabited settlements located at considerable distance from the epicenter.
Authorities are monitoring seismic activity in the region for aftershock sequences. No tsunami warnings or major structural damage reports have been issued at this time. Medical facilities in nearby regions remain on standard alert status. This is a developing story.
Source: M 6.4 – South Sandwich Islands region
Developing story. Figures are preliminary and may change. As reported by USGS Significant Earthquakes; captured Jul 11, 2026 17:35 (Asia/Tbilisi). Primary source: USGS Significant Earthquakes.
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