Recent Tokyo Quake Damages Trains, Water Pipes, and Injures Dozens

A powerful magnitude 5.9 earthquake damaged underground water pipes, halted trains, and injured more than 20 people on Thursday night in Tokyo, Japan.

Japan Meteorological Agency reported the quake was centered in Chiba prefecture, just east of Tokyo, at a depth of about 80 kilometers (48 miles).

The agency originally reported a 6.1 magnitude but later downgraded to 5.9 and warned that a quake of similar intensity could occur within the week.

“Based on past experience, a quake with a similar intensity occurred within about a week of a major earthquake in 10 to 20 percent of past cases. Please stay alert for the next week or so,” Tsukada Shinya of Japan Meteorological Agency said.

Tsukada added that the tremor on Thursday occurred deeper under the earth’s surface and was at a smaller scale than the predicted seven magnitude quake that would directly hit under the capital city.

“At this time, we do not believe there is a connection between yesterday’s tremor and the earthquake predicted to occur under Tokyo sometime in the future,” Tsukada said at a news conference early Friday.

Police in Chiba prefecture said 11 people were injured in separate locations when they were thrown to the floor during the quake.

The Fire and Disaster Management Agency also reported three passengers injured when a commuter train partially derailed in eastern Tokyo when it made an emergency stop.

Meanwhile, Chief Cabinet Secretary Hirokazu Matsuno said there were no abnormalities at nuclear power facilities in the area.

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