Windows were shattered, roof tiles and shop signs fell The city's trains were stopped and telephone services interrupted briefly. The shaking was so strong. Roof tiles flew away. A police spokesman in neighbouring Tottori prefecture said the quake had been felt for about 20 seconds, but there were no reports of injuries or damage to buildings. Saturday's earthquake comes a day after one registering 5.8 on the Richter scale hit northern Japan.
Japan is one of the world's most earthquake-prone countries.