Sakuragichō train fire
1951 CE.
Shown on the map at 35.451°, 139.631°.
The Sakuragichō train fire (桜木町事故, Sakuragichō jiko) occurred on April 24, 1951, when a 63 series Keihin Line (now part of the Negishi Line) train approaching Sakuragichō Station in Yokohama hit a loose overhead wire causing a short circuit and starting a fire which killed 106 people and injured 92.
Text from the Wikipedia article Sakuragichō train fire, licensed CC BY-SA 4.0.