31 km NE of Port-Olry, Vanuatu

A magnitude 7.1 earthquake — a major event — struck near 31 km NE of Port-Olry, Vanuatu on October 20, 2015, at a intermediate-depth depth of about 135 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. A tsunami threat was flagged for this event — large, shallow quakes beneath or near the ocean can lift the seafloor and generate destructive waves. 8 people submitted "Did You Feel It?" shaking reports to the USGS. 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.