Nearly a week has passed since Japan suffered its worst crisis since World War II. More than 4,000 have been confirmed killed and more than 8,000 remain missing after the 9.0-magnitude earthquake struck the northeast coast of Japan six days ago. The hundreds of thousands now displaced by the quake, the ensuing tsunami -- and now, fears of radioactivity -- are scattered across the country, finding shelter and aid where they can, as they begin to rebuild their lives as survivors. Search-and-rescue teams from several countries have now joined Japanese forces, scouring the vast fields of rubble that were neighborhoods and towns just last week. Collected here are recent images of the ongoing recovery efforts and of Japanese citizens coping with this historic disaster. A Japanese home drifts in the Pacific Ocean in this photograph taken on March 13, 2011 and released on March 14. Ships and aircrafts from the U.S. Navy's Ronald Reagan Carrier Strike Group are searching for survivors in the coastal waters near Sendai, Japan, in the wake of 9.0-magnitude earthquake and tsunami that officials say claimed at least 10,000 lives. A woman walks away from a message wall after writing a message to the victims of last week's earthquake and tsunami in Japan in central Seoul, South Korea. Medical staff use a Geiger counter to screen a photographer for possible radiation exposure at a public welfare center in Niigata, northern Japan March 16, 2011. Radiation has been released into the atmosphere at the Fukushima Daiichi nuclear plant run by Tokyo Electric Power Co. on the country's northeast coast, which was badly damaged after a massive earthquake and tsunami on March 11.