Worried relatives, generous volunteers, frantic neighbors, even medical providers are turning to social media now that Hurricane Irma wiped out electricity and cell service to communities across Florida, cutting off most contact with remote islands in the Keys.

“We all sort of scattered around the country when we evacuated, so we’re trying to stay in touch, by phone, by Facebook, however we can,” said Suzanne Trottier, who left her Key West, Florida home for Virginia almost a week ago as the hurricane approached. “Unfortunately we’ve been really, really looking on Facebook a lot because I have people down there I haven’t heard from,” she said.