The aftermath of the devastating earthquake and tsunami in Japan

Vehicles and debris litter the Natori neighborhood hit hard by the tsunami. (Brian van der Brug / Los Angeles Times / March 13, 2011)


With a death toll expected to climb into the tens of thousands, more than a half-million people displaced and a nuclear crisis continuing to unfold, rescuers converged Monday on Japan's devastated earthquake zone while workers in relatively unaffected areas struggled to return to offices and factories.

A new explosion rocked the stricken Fukushima Daiichi nuclear power complex, wire services reported, sending a plume of smoke into the air. Japan's nuclear safety agency said it could not confirm whether the hydrogen explosion at the plant's No. 3 reactor had led to an uncontrolled leak of radioactivity.

The government reported Monday that radiation levels again rose above legal limits outside the crippled nuclear complex at quake-battered Fukushima, about 150 miles north of Tokyo, where authorities have been pumping seawater into overheated reactors to try to cool them down. Several other nuclear installations were under close watch for potential problems.

Across a wide swath of earthquake-hit territory, hundreds of thousands of hungry survivors roused themselves from a third cold night spent huddled in darkened emergency centers, 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 power. Rolling blackouts to conserve energy were scheduled across much of the country on Monday.

Photos: Scenes of earthquake destruction

In Tokyo and other large cities outside the quake zone, the first full workday since Friday's temblor began with delays and disruptions. Many of the train lines that normally run between Tokyo and outlying suburbs and surrounding cities were either running far less frequently than normal or not running at all. Subway and train lines crisscrossing the capital were also curtailed.

With fears about how the world's third-largest economy would weather the ongoing fallout from the massive quake, Japan's main stock index, the Nikkei, opened down Monday morning by just over 2%. The central bank said it was prepared to flood the money markets with cash to keep the financial system running smoothly.

A full reckoning of deaths and damage could take weeks, but the picture grew grimmer with each passing hour.

"We have no choice but to deal with the situation on the premise that it [the death toll] will undoubtedly be numbered in the ten thousands," Naoto Takeuchi, head of the Miyagi prefectural police, told a Kyodo reporter during a local disaster task force meeting.

An international rescue effort gathered force, with teams arriving from China, New Zealand, Germany and the United States, among other nations. A Los Angeles County Fire Department search-and-rescue team arrived at Misawa Air Base about 400 miles north of Tokyo about 3 p.m. Sunday with 74 tons of equipment, including swift-water rescue gear and six search dogs, spokesman Don Kunitomi said.

That team joined two other crews from Fairfax County, Va., and Britain that are scheduled to travel together to Miyagi to aid search-and-rescue efforts.

"We are glad to accept all the help we can get to assist the people of Japan," said Air Force Col. Michael Rothstein, 35th Fighter Wing commander at Misawa. "We will do whatever is in our means to support their efforts in this time of need."

There were some dramatic rescues of tsunami survivors Sunday, including that of a 60-year-old man who had been waiting for help since he was swept out to sea Friday.

Hiromitsu Shinkawa was spotted by rescuers at 12:40 p.m. nine miles off shore by the crew of a Japanese Maritime Self-Defense Force destroyer, according to Jiji Press.

Shinkawa, from the devastated city of Minamisoma, was conscious and in "good condition" after the rescue, Japanese officials said.

"I ran away after learning that the tsunami was coming," Shinkawa told rescuers, according to Jiji Press. "But I turned back to pick up something at home, when I was washed away. I was rescued while I was hanging to the roof from my house."

In Rikuzentakata, a port city of about 20,000 leveled by the tsunami, Etsuko Koyama escaped the water rushing through the third floor of her home but was unable to hold on to her daughter's hand, she told Japanese broadcaster NHK. The girl was swept away by floodwaters and had still not been found Sunday, Koyama said.

"I haven't given up hope yet," Koyama told NHK, wiping tears from her eyes. "I saved myself, but I couldn't save my daughter."

About 5,000 houses in Rikuzentakata were submerged by the tsunami, and most of the 7,200 houses in Yamada were also under water, Kyodo reported. In Otsuchi, the tsunami swept away the town office.