Damaged Fukushima I Nuclear Power Plant, Okuma, Futaba District, Fukushima Prefecture, Japan

Unit 1 was designed for a peak ground acceleration of 0.18 g (1.74 m/s2) and a response spectrum based on the 1952 Kern County earthquake. All units were inspected after the 1978 Miyagi earthquake when the ground acceleration was 0.125 g (1.22 m/s2) for 30 seconds, but no damage to the critical parts of the reactor was discovered. However the 2011 Sendai earthquake recorded a ground acceleration of 0.35 g (3.43 m/s2) near the epicenter.
Reactor data
Unit - Type - Start construction - First criticality - Commercial operation - Electric power - Reactor supplier - Architecture - Construction - Fuel