TOKYO (AP) _ A moderate earthquake with a preliminary magnitude of 5.0 jolted southern Japan on Monday, but there were no immediate reports of damage or injuries.

The temblor was centered about 25 miles under the ocean floor in the East China Sea near Amami Oshima island, about 800 miles southwest of Tokyo, the Meteorological Agency said. It struck at 2:21 p.m.

There was no damage or tsunami, seismic waves caused by undersea disturbances such as earthquakes or volcanic activity, the agency said.

A quake of magnitude 5 can cause damage to homes if it occurs in a residential area.

Japan is one of the world's most earthquake-prone nations.