It sounded and felt like an earthquake, but what exactly caused houses in Ontario, Wayne County to shake Monday night. People in several neighborhoods say they felt the ground moving and think an earthquake hit their town. New York State does have fault lines but there are none in Wayne County.

Around 7:00 p.m. Monday, some people in Wayne County say they thought they were in the twilight zone. "I think I walked down the hallway over here and I heard bah-boom and the house shook. The house actually shook in the front," Joan Sharpstene of Ontario said. She was handing out candy to trick-or-treaters when this phenomenon happened. "It felt like a tremor like the whole house actually shook in the front," Sharpstene said.

Bill Maier also lives in Ontario. He says it reminded him of a gas explosion in Ontario back in 1992. That explosion killed two people. People felt its effects for several miles. Wayne County Sheriff's Deputies and firefighters investigated the situation Monday night but have found the cause. NEWS 10NBC asked geologist and RIT Professor Joshua Goldowitz to help us figure it out. "The loud boom and then shaking sounds like an earthquake," Goldowitz said. He also went on to US Geological Survey website. It records any seismic activity in the US. Goldowitz found nothing recorded for Wayne County.

"For someone to feel an earthquake it has to be a magnitude over about two and the U.S. Geologist Survey site doesn't even show anything magnitude one," Goldowitz said. He also said "It could be a sonic boom from a really fast aircraft going over, which can cause shaking and the sound. Not totally natural but we do have mines where explosives are used to blast bedrock."