Recovery efforts took off late last night. But thousands of people waited in shelters, not knowing whether their homes had survived. The number of people shivering without power fell below 7 million, down from nearly 8 million.
Two of the New York area's major airports, John F Kennedy and Newark Liberty, were set to reopen today together with the New York stock exchange and the Nasdaq exchange, which had been suspended since Monday in the markets' first closure since the 9/11 attacks of 2001, officials said.
Meanwhile, three US nuclear power reactors remained shut down. Amid worries that waters could overwhelm the reactors as happened in Japan's Fukushima nuclear emergency last year, authorities yesterday said there were no risks to the public.
New Jersey's power company PSEG Nuclear shut down its Salem 1 unit at Hancocks Bridge on the Delaware river.
The Nine Mile Point unit 1 in Scriba, New York, and the Indian Point reactor 3 in Buchanan, New York were also closed.
Sandy slammed the coastline of New Jersey with 80 mph winds pushing seawater up by an unprecedented 13-feet in New York City, and bringing the US presidential campaign to a halt a week before the November 6 polls.