An earthquake with a preliminary magnitude of 7.1 struck Japan’s southern Kumamoto prefecture on Tuesday, knocking out power to thousands of homes, stopping rail services and triggering warnings for tsunamis and aftershocks.

Thousands of homes are without power, and a tsunami warning was issued after an earthquake shook Japan's southern Kyushu island.

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