A magnitude 5.1 earthquake struck Chiba Prefecture at 3:20 p.m. Saturday, the Meteorological Agency said. No tsunami warning was issued.
The quake, which registered lower 5 on the Japanese intensity scale, hit the town of Chonan in the northeastern part of the prefecture, the agency said. Jolts with an intensity of 3 were also felt in central Tokyo, where it shook buildings, according to witnesses.
The quake occurred at depth of 38 km, the agency said.
The government set up an emergency unit at the Prime Minister’s Office to gather information. There were no reports of major damage.
An 84-year-old woman suffered injuries after falling at her home in the city of Chiba, according to the Chiba Prefectural Government.
At a news conference, Satoshi Harada, senior coordinator for seismological information at the agency, called on residents in areas shaken hard to stay alert for more earthquakes measuring up to around lower 5 over the next week.
The earthquake came just hours ahead of the anticipated arrival of U.S. President Donald Trump in Tokyo for a state visit to Japan.
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