A strong, 6.8-magnitude earthquake struck in Japan on Tuesday, according to the United States Geological Survey.

Japan's south-western Kyushu island has been struck by two strong earthquakes within an hour, with multiple people presumed dead after an explosion at a shopping centre.

In Kashima Town, the quake collapsed the second floor of the Aeon Mall shopping center, trapping an unknown number of people there, according to the fire department in the prefectural capital of Kumam...