Fukushima I (Daiichi) earthquake/tsunami damage before/after
NOTE: Before image from google earth prior to Tsunami, after pic by digital globe taken after the second explosion at the nuclear powerplant.
More information about the reactors involved
Four nuclear power plants located on the eastern coastline close to the epicenter were affected: Onagawa (3 reactors), Fukushima-Daiichi (6 reactors), Fukushima-Daini (4 reactors) and Tokai (1 reactor). These reactors are all using boiling water technology, and enter services in the 1970s and 1980s.
The next nearest nuclear power plant is Kashiwazaki-Kariwa (7 reactors) that sits on the opposite site of Honshu island (the main Japanese island, where Tokyo is), on its western coast.
Fukushima-Daiichi (operated by TEPCO):
- 1 x 439 MW started in 1970
- 4 x 760 MW started 1973-1977
Fukushima-Daini (operated by TEPCO):
- 4 x 1067 MW started 1979-1986
Onagawa (operated by Tohoku):
- 1 x 498 MW started 1983
- 2 x 796 MW started 1994 and 2001
Tokai 2 (operated by Japco):
- 1 x 1060 MW started in 1978
PRIS review of Japanese reactors has more details re operational history etc:
Interactive map by US DOE where you can click through to get lots of technological details:
Japan has 54 rectors in total at 18 power plants, with 47,000 MW of installed capacity. They generated 29 percent of the country’s electricity supply in 2010.