There’s disturbing new evidence that some of Japan’s tsunami wreckage is headed to the West Coast of the United States.

Professor Bruce Perry, an oceanographer at Cal State-Long Beach, said that he believes debris “can and will make it to our shoreline.”

He’s been carefully tracking the debris—in fact, he says some of it is caught up in a huge circulating current that will carry homes, tractor trailers, cars and even ships 7,000 miles to the western U.S. coastline.

Professor Perry says that people on the coast won’t see a fully intact home make it shore, but instead, pieces of lumber and metal—something that could very well be a hazard for beachgoers.