One resident said it sounded like a long, loud growl - another thought they'd acquired a ghost
People in Cape May and Atlantic counties are reporting what some believe have been an earthquake, though others believe it may have been more akin to a sonic boom.
Some have placed the time at about noon, while others say it was closer to 2 p.m.
Ralph Walter, West Cape May, said he was fishing on Cape May Point Beach when he heard a rumble. “It was dark on the Delaware beach side, and at first I thought it was thunder,” he said. “But if it was thunder, it was weirdest thunder I've ever heard. It was more like a growl that went on for about four seconds.”
Walter said he didn't catch anything today, but found some seaglass.
In North Cape May and Cape May Court House, Becky Sargent and Jean MacCoy said they heard the rumble, though the ground didn’t shake.