A 7.3 magnitude earthquake struck Japan on Dec. 6, triggering tsunami warnings, which were lifted soon after.

The quake caused very little damage.

No damage has been reported at monitoring posts and water treatment facilities at the reactors at the Fukushima Dai-ichi plant, the nuclear facility that was devastated by tsunami waters after the 2011 quake, according to the Tokyo Electric Power Company. All the workers were moved to higher ground on the site and told to stay inside after the tsunami warning.

For more information, refer to the Nuclear Energy Institute blog at www.neinuclearnotes.blogspot.com.