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

How technology helps with aftermath of disasters

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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