DETROIT— Jahn Martin was visiting Pictured Rocks National Lakeshore when a 200-foot chunk of the cliff suddenly broke off and fell into Lake Superior.
He captured the entire scene on video.
He was on a pontoon with some friends when they heard the wall popping and cracking, he told Mid-Michigan Now. Then, within 60 seconds, the cliff face slid down and crashed into the water.
“We could hear the cliff wall popping and cracking and within 60 seconds a section of cliff approximately 200 feet wide fell before us,” Martin told WLUC-TV. “The splash and swell wave were very dramatic.”
Rockfalls can occur for a variety of reasons, ranging from water seeping in between any cracks to earthquakes to