It started with a mock earthquake off the coast of Sumatra, triggering a virtual tsunami wave that crossed the Indian Ocean in 12 hours.

演习开始于虚拟苏门答腊海岸外发生了地震，引发了整个印度洋海面长达12小时的海啸巨浪。

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Today, a Kyoto facility designed by game maker Sega lets people experience Mother Nature's nasty streak: a virtual-reality earthquake.

CNN: ASIANOW - TIME Asia | Travel Watch | Who Needs Nature? Japan Does It Better

Such a virtual organisation could be a crisis-management team dealing with an earthquake or chemical spill.

ECONOMIST: REPORT: COMPUTER NETWORKS: Computing power on tap | The

Accounts of the deadly attacks last fall in Mumbai, India, the May 2008 earthquake in China and last week's plane crash show what used to be just a virtual gathering place to communicate pet peeves or plans for the weekend has evolved into a go-to spot for eyewitness news -- sometimes even before mainstream media has had time to crack the story.

CNN: Social-networking sites share breaking news