A 9.0-magnitude earthquake hit northern Japan on March 11, 2011, triggering tsunamis that caused widespread devastation and crippled a nuclear power plant.
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Your iReports on CNN
-'In the Arena' blog: iReporter Johnny Colt
-'In the Arena' blog: iReporter Dan Szczuka
-iReporter Ryan McDonald on 'In the Arena'
-Aftershocks 'coming extremely regularly'
-Gotta Watch: iReporters capture scope of quake
-iReporter Ryan McDonald talks with CNN International's Jim Clancy
-Eyewitnesses in Japan describe earthquake
-iReporter captures fire after quake
