Officials said probability of a magnitude 8 or larger quake was only about 1% but they have urged people to be prepared

A 7.5 -magnitude earthquake struck the northernmost prefecture of Japan's main Honshu island on Monday night, and tsunami warnings were lifted several hours later.

This is the moment a powerful 7.5-magnitude earthquake strike Japan. The earthquake on Monday (8 December) injured at least 33 people and produced widespread tsunami warnings,…