Perhaps the most significant legacy of the earthquake will arise from what happened at the Fukushima nuclear plant, which was situated in the direct path of the tsunami. The fact that the emergency generators were in a vulnerable position where floodwaters could stop them is only one of a number of design flaws that contributed to the magnitude of the disaster.
Japan's Cabinet stopped short of committing to phase out nuclear power by 2040, backtracking from an advisory panel's recommendations in the face of opposition from pro-nuclear businesses and groups. While not endorsing the energy policy document calling for the phase-out released last week, the Cabinet ministers did vaguely agree to pursue its goals.
Toyota's quarterly sales soared nearly 60 percent to $70.5 billion, showing how strongly the company has recovered from last year's earthquake.
GM's sales fell 6 percent from a year earlier, while Ford's slipped 4 percent, while Toyota is enjoying a 26-percent jump over last year's earthquake recovery.
Mazda sold 300,000 vehicles for the quarter, up 6.5 percent, which helped reduce its losses by $240 million compared to a year earlier.
Toyota bounced back from safety recalls and natural disasters, selling 4.97 million vehicles globally in the first half of the year to retake its crown as the world's top automaker from General Motors
The operator of the plant devastated by a tsunami has issued a final report, outlining organizational and communication problems that have not yet been resolved.
Japan's government approved bringing the country's first nuclear reactors back online since last year's earthquake and tsunami led to a nationwide shutdown.
Thousands of people are flocking to see a Japanese dock that was torn loose by last year's tsunami, but it could threaten the integrity of the beach.
Panel said the ex-prime minister and his aides caused confusion at the height of the crisis by heavily interfering in the damaged plant's operation.
Prime Minister Yoshihiko Noda suggested if the country doesn't return to nuclear power, the Japanese livelihood and economic stability would be threatened.
Japanese media say a Harley-Davidson motorcycle lost in last year's tsunami has washed up on a Canadian island about 4,000 miles away.
The operator of the Fukushima nuclear plant says an endoscopic examination detected radiation levels up to 10 times the fatal dose.
The No. 6 reactor at the Kashiwazaki-Kariwa complex was taken off line for maintenance, while the timetable for restarts remains unclear.
Orders require nuclear plants to install or improve venting systems to limit core damage in a serious accident.
Toyota Europe has recovered from the impact of Japan's tsunami and earthquake and expects to increase both its sales and share of a shrinking European market.
Japan's industrial production rebounded 4 percent in December from November, suggesting the still-weak economy is gaining some steam.
Radiation-blurred images taken inside one of Japan's tsunami-hit nuclear reactors showed a place scarred by 10 months' exposure to heat and humidity.
Japan is backtracking on plans formed only this month to shut down nuclear reactors after 40 years, saying that some are safe enough to live on.
Reactors will be shut down after 40 years of use to improve safety following the nuclear crisis set off by last year's tsunami.
Yoshihiko Noda said authorities would work to decontaminate the region from radioactive fallout, while ensuring compensation and health checks for those affected.
In 2010, we definitely started to see a trend of slowed off-shoring. A lot of people were very optimistic that there was going to be a large influx coming back from off-shore.
Government said it could take 40 years to clean up and fully decommission a nuclear plant that went into meltdown after it was struck by a huge tsunami.
Yoshihiko Noda says tsunami-damaged nuclear plant has achieved a stable state of "cold shutdown," a crucial step toward closing the plant.