Of the estimated 700,000 people made homeless or evacuate in Japan after last Friday's devastating earthquake and tsunami, about 4300,000 are in makeshift emergency shelters. Many remain without basic necessities, including food, electricity, heat and fuel. It has been snowing in the affected areas in the country's north-east, with overnight temperatures plunging to minus 5 degrees Celsius (23 Fahrenheit). The situation poses grave dangers to the lives and health of survivors, especially the elderly. Japan's National Police Agency has raised the official death toll as of midnight Wednesday to 4,314, across twelve prefectures, while another 8,606 people remained unaccounted for in six prefectures. The government says that across the country, almost 2 million households are still without power, while millions more are subject to rolling blackouts. An estimated 1.6 million people lack water. People across Japan live in fear of more destructive aftershocks. An earthquake registering 6.0 on the Richter scale shook Tokyo yesterday afternoon. The final death toll is likely to be well above 10,000. Rescue and search and recovery teams are only now entering some areas hit by the tsunami. The work of searching through the vast area of debris and destruction is difficult and time-consuming.