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Page last updated at 18:50 GMT, Friday, 18 March 2011

How technology helps with aftermath of disasters

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Newsrooms around the world have been carrying images of the earthquake in Japan from the moments after it struck.

While the disaster itself lasted only a few minutes, the recovery operation will continue for months.

Dan Simmons looks at how, following a natural disaster, the internet is becoming an essential tool for survivors and rescuers alike.

Links to the technology featured in the video are below:

NTT Docomo disaster message board

Mixi (Japanese site)

Ushahidi

Esri

Crisis Commons

Google Person Finder

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