SENDAI, Japan (AP) --
The estimated death toll from Japan's disasters climbed past 10,000 Sunday as authorities raced to combat the threat of multiple nuclear reactor meltdowns and hundreds of thousands of people struggled to find food and water. The prime minister said it was the nation's worst crisis since World War II.
Nuclear plant operators worked frantically to try to keep temperatures down in several reactors crippled by the earthquake and tsunami, wrecking at least two by dumping sea water into them in last-ditch efforts to avoid meltdowns. Officials warned of a second explosion but said it would not pose a health threat.
Near-freezing temperatures compounded the misery of survivors along hundreds of miles (kilometers) of the northeastern coast battered by the tsunami that smashed inland with breathtaking fury. Rescuers pulled bodies from mud-covered jumbles of wrecked houses, shattered tree trunks, twisted cars and tangled power lines while survivors examined the ruined remains.
One rare bit of good news was the rescue of a 60-year-old man swept away by the tsunami who clung to the roof of his house for two days until a military vessel spotted him waving a red cloth about 10 miles (15 kilometers) offshore.
The death toll surged because of a report from Miyagi, one of the three hardest hit states. The police chief told disaster relief officials more than 10,000 people were killed, police spokesman Go Sugawara told The Associated Press. That was an estimate — only 400 people have been confirmed dead in Miyagi, which has a population of 2.3 million.
According to officials, more than 1,800 people were confirmed dead — including 200 people whose bodies were found Sunday along the coast — and more than 1,400 were missing in Friday's disasters. Another 1,900 were injured.
For Japan, one of the world's leading economies with ultramodern infrastructure, the disasters plunged ordinary life into nearly unimaginable deprivation.
Hundreds of thousands of hungry survivors huddled in darkened emergency centers that were cut off from rescuers, aid and electricity. At least 1.4 million households had gone without water since the quake struck and some 1.9 million households were without electricity.
While the government doubled the number of soldiers deployed in the aid effort to 100,000 and sent 120,000 blankets, 120,000 bottles of water and 29,000 gallons (110,000 liters) of gasoline plus food to the affected areas, Prime Minister Naoto Kan said electricity would take days to restore. In the meantime, he said, electricity would be rationed with rolling blackouts to several cities, including Tokyo.
"This is Japan's most severe crisis since the war ended 65 years ago," Kan told reporters, adding that Japan's future would be decided by its response.
In Rikuzentakata, a port city of over 20,000 virtually wiped out by the tsunami, Etsuko Koyama escaped the water rushing through the third floor of her home but lost her grip on her daughter's hand and has not found her.
"I haven't given up hope yet," Koyama told public broadcaster NHK, wiping tears from her eyes. "I saved myself, but I couldn't save my daughter."
A young man described what ran through his mind before he escaped in a separate rescue. "I thought to myself, ah, this is how I will die," Tatsuro Ishikawa, his face bruised and cut, told NHK as he sat in striped hospital pajamas.
Japanese officials raised their estimate Sunday of the quake's magnitude to 9.0, a notch above the U.S. Geological Survey's reading of 8.9. Either way, it was the strongest quake ever recorded in Japan, which lies on a seismically active arc. A volcano on the southern island of Kyushu — hundreds of miles (kilometers) from the quake' epicenter — also resumed spewing ash and rock Sunday after a couple of quiet weeks, Japan's weather agency said.
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