Meanwhile, in Japan, seven plants - one of which is currently under construction - are located in zones at risk of a tsunami, and South Korea is now expanding two plants in risk zones, the researchers said.
The study, which appears in a recent issue of the journal Natural Hazards, urges energy officials in these countries to consider how they would deal with the potentially far-reaching consequences of a catastrophe.
HSW: How Nuclear Power Works
"The location of nuclear installations does not only have implications for their host countries but also for the areas which could be affected by radioactive leaks," study researcher Joaquín Rodríguez-Vidal, of the University of Huelva, told SINC, a Spanish news agency.
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