TOKYO -- A strong earthquake jolted eastern Japan on the afternoon of May 25, the Japan Meteorological Agency (JMA) said.
The estimated 5.1 magnitude earthquake, which struck at about 3:20 p.m., measured a lower 5 on the 7-point Japanese seismic intensity scale in northeastern Chiba Prefecture east of Tokyo, and 4 in some other parts of Chiba Prefecture and Tokyo's 23 wards.
The quake, which was focused in southern Chiba Prefecture and struck at a depth of 40 kilometers, posed no risk of a tsunami, the agency said. There were no immediate reports of serious damage.
The temblor registered a 3 on the Japanese scale in other parts of the surrounding prefectures of Ibaraki, Saitama and Kanagawa.
The JMA is calling on people to be careful of aftershocks over the coming week.