South Sandwich Islands region

A magnitude 7.3 earthquake — a major event — struck near South Sandwich Islands region on September 1, 1961, at a intermediate-depth depth of about 129 km. An earthquake this size would have been felt strongly across the surrounding region; intermediate-depth events inside a subducting slab are often felt over a wide area but do less surface damage than shallow quakes. Casualties, damage and the recovery depend on local building standards, population and distance from the epicentre — the news coverage, references and photos below capture what happened on the ground.