A strong earthquake shook central Japan's Nagano region on Saturday night, injuring several people and collapsing a building in area village, the country's Kyodo news agency reported.
Reports of the intensity of the quake, centered in the Nagano area at 10:08 p.m., differed. The Japan Meteorological Agency reported it was a 6.8 magnitude temblor; the US Geological Survey said it was magnitude 6.2.
The Nagano fire department said several people were injured, said the News agency. Details about the injuries were not immediately available.
About 30 kilometers west of Nagano, a building had collapsed in the village of Hakuba, a firefighter told the news agency.
No electric facilities, including nuclear power plants, were damaged, the Tokyo Electric Power Co. said via Twitter Saturday.
The USGS's online ShakeMap estimated strong shaking would have been felt near the epicenter, with a potential for light damage.
Aftershocks followed the main quake Saturday night, including one measured at magnitude 4.1, the Japan Meteorological Agency said.
Japan's national public broadcasting organization NHK reported that a landslide blocked a road after the quake struck. NHK also said 200 homes were without power, and that Shinkansen bullet train service in the area was temporarily suspended. It also reported that several people were injured.
