Japan marks fifth tsunami anniversary Japan is marking the fifth anniversary of the earthquake and tsunami that left more than 18,000 dead or missing.PM Shinzo Abe and Emperor Akihito are attending a memorial in Tokyo, and joined a moment of silence nationwide at the exact moment the quake hit.The magnitude-9.0 quake struck offshore creating a vast water surge that devastated the **rth-east coast.It also triggered the world's worst nuclear disaster since Cher**byl, at the Fukushima Daiichi nuclear plant.