damaging earthquake to occur in Montana since the 1935–36 earthquakes that left four people dead. The Hebgen Lake area also experienced earthquakes again in 1964, 1974, 1977 and 1985. Effects The landslides caused by the quake carried of rock, mud and debris down into the valley and created hurricane-force winds strong enough to toss cars. In Madison Canyon, the landslide swept away a family of seven, five of whom perished. Two more fatalities were also reported in nearby Cliff Lake to the south. In Rock Creek, tourists camping there were caught off guard by the quake and landslide, which swept them into the creek. The earthquake caused a seiche which inundated trailers and tents, uprooted trees, and injured one additional person. New geysers and cracks sprouted up in nearby Yellowstone National Park. Near Old Faithful, the earthquake damaged the Old Faithful Inn, forcing guests there to evacuate. Landslides caused by the quake blocked a road between Mammoth and Old Faithful, damaging a bridge inside the park. There was one reported injury when a woman broke her wrist. The earthquake also created fault scarps as high as , causing extensive damage to roads, homes, and buildings. In Belgrade, Montana the earthquake damaged measuring equipment placed in a water well. The quake also knocked out telephone communications between Bozeman and Yellowstone, with the city of Bozeman itself suffering moderate quake damage to homes and buildings. Buildings at the Montana State University campus also sustained quake damage. In Butte, the quake caused a pendulum clock to stop at 12:42 a.m. (MST) and caused minor damage to homes. Areas around Hebgen Lake were also affected as the quake caused parts of the lake to rise . Roads and highways running along the shores of the lake collapsed into the water. In Ennis, most residents were evacuated due to concern Hebgen Lake might flood the town. The evacuation was subsequently called off when it became known the landslide had blocked the river's flow. In West Yellowstone, the earthquake damaged a courthouse and a railroad station. The earthquake also caused damage and fatalities outside of Montana. In Raynolds Pass in Eastern Idaho, a landslide killed eight more people. Seismic waves from the quake were reported in Boise and Macks Inn, Idaho, causing minor well and sewer damage. The final death toll from the earthquake was 28, although some newspaper reports suggested the death toll was high