April 11, 2011
Related: On Monday Japan expanded the evacuation zone around its crippled nuclear plant because of high levels of accumulated radiation.
A 6.6-magnitude aftershock rattled Japan today on the one-month anniversary of the twin disasters that left at least 25,000 dead and officials scrambling to prevent a meltdown at damaged nuclear reactors.
A 3-foot tsunami warning was issued after the temblor hit the northeast coast 5:16 p.m. local time. All advisories and warnings were lifted about an hour later, according to local Japanese TV.