The Meteorological Agency says heavy rainfall will likely hit the Tohoku region in northeastern Japan and Niigata Prefecture through Wednesday morning.

Weather officials are warning of possible mudslides and flooding in the areas. They say the level of rainfall may require officials to issue emergency warnings, and urge residents to make preparations.

An earthquake struck the Tohoku region of northern Japan at around 5:39 a.m. on Monday, local time.

It had an estimated magnitude of 6.1. The focus was off the coast of Miyagi prefecture at a depth of 50 kilometers. Officials say there is no risk of tsunami.