b903074b0c56ad9fA moderate earthquake shook a large area of Idaho early Saturday, causing millions in property damage and cutting off power to residents near its epicenter in Challis. The city has experienced hundreds of slight to moderate temblors over the past 10 months, authorities said, but Saturday’s tremor was the strongest since 1983. The quake measured at a magnitude of 4.9 and was located about 6.5-kilometres from Challis in the state’s central mountains. The tremor was felt as far away as Boise, however, 305-kilometres to the southwest, the US Geological Survey said. The quake caused rockslides, damaged homes and knocked out power around Custer County, local officials reported. Challis Mayor Mark Lupher told journalists that there were no known injuries. Several people living close to the epicenter reported property damage such as cracks in the walls of their homes, he said. The quake was more powerful than recent temblors, including a 2.9-magnitude quake on December 29th, the Challis Messenger weekly newspaper reported. Scientists have been trying to determine whether the swarm of quakes, which began in March 2014, have been caused by an unknown fault, or a known fault that was previously thought to be dormant. The earthquakes have been centered near where Idaho’s most powerful known quake, measured at 6.9-magnitude, killed two children in 1983. More