The packed commuter train that derailed and slammed into an apartment building Monday in Amagasaki, Hyogo Prefecture, was going more than 100 kph when it hit a curve and jumped the tracks, police officials said Tuesday.
The speed limit at the accident site was 70 kph, according to West Japan Railway Co., the operator of the JR Fukuchiyama Line train. The company has said derailment can occur at 130 kph.
The Hyogo Prefectural Police determined the speed by analyzing records in a device recovered from the wrecked train to automatically record train speed, officials said.