Hurricane Sandy Largest Event in Instagram History

Hurricane Sandy has become the most Instagram'ed event in the history of the popular photo app.

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Co-founder Kevin Systrom said Monday at GigaOm's Roadmap conference that he was surprised at the amount of Sandy-related usage that took place last week.

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"Sandy was the largest event to take place and be captured on Instagram," Systrom said, as quoted by Inc.com. "It was maybe the largest event captured, ever. And that's an interesting thing to think about."

He said more than 800,000 photos were shared with the #Sandy hashtag, with numerous others untagged. In comparison, only 85,000 photos were marked #Superbowl surrounding that event earlier this year.

"That means people were not only interested in it, but they were documenting it," Systrom added. "It's a participatory activity, not purely consumption."

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Instagram, which has more than 100 million registered users, was purchased by Facebook for $1 billion in a deal that closed last month.