An earthquake with a preliminary magnitude of 7.1 struck Japan's southern Kumamoto prefecture, the Japan Meteorological Agency (JMA) says.

An earthquake registering a preliminary magnitude of 7.1 has shaken Kumamoto on Japan’s southern main island of Kyushu.

7.1-magnitude earthquake hits southwest Japan

A tsunami warning for a wave measuring 1m was issued after the earthquake, the Japan Meteorological Agency said.

A 7.1-magnitude earthquake struck Japan's Kumamoto Prefecture, triggering a tsunami warning and emergency alerts across southern Kyushu.