Marc Jacobs (AFP/Getty Images)

Uptown has become the new downtown, with the posh Mark and Carlyle hotels maintaining their hot-spot status this week for party people determined to kick up their heels in the aftermath of Sandy. At the Mark on Thursday, guests included Anna Wintour, Marc Jacobs and designers Thom Browne and Nicole Miller. “It was like a fashion event in the restaurant,” said a spy. Also spotted at the hotel: Naomi Watts, Liev Schreiber, Alan Cumming, Carla Gugino, Daniel Benedict and Andrew Saffir. “Everyone was talking survival stories over cocktails — mainly about the mad scramble for uptown hotel rooms just before the storm hit and after the power went out,” a guest told us. Meanwhile, at the packed Carlyle, designer Johan Lindeberg was seen busting out dance moves. “He was waving his hands in the air and swaying to the bar’s piano player as if it was a rock band,” says a witness, who also spotted designer Prabal Gurung and a guest dressed in a cat costume, perhaps stranded there after Halloween.