west of the Bonin Islands, Japan

A magnitude 7.1 earthquake — a major event — struck near west of the Bonin Islands, Japan on July 4, 1982, at a deep-focus depth of about 536 km. An earthquake this size would have been felt strongly across the surrounding region; deep-focus earthquakes rarely cause major surface damage despite their size. 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.