Water from the fuel pools at the top floors of the No. 7 and No. 2 reactors at the Kashiwazaki-Kariwa nuclear power plant in Niigata Prefecture spilled over due to strong earthquakes, Tokyo Electric Power Company Holdings, Inc. announced Monday. No damage or leakage out of the buildings was confirmed.
I’m sure everybody is aware but to add to point 2, the Chernobyl accident was mostly caused by bypassing safety procedures and lockouts
And lots of hubris.