CHALLIS, Idaho (AP) — Small earthquakes occurred Saturday morning in remote areas of central Idaho and western Montana. The U.S. Geological Survey says a 3.8-magnitude earthquake occurred at 1:34 a.m. about seven miles northwest of Challis. The Challis area has seen a flurry of earthquakes this year. In western Montana, a 2.5 earthquake was measured at 7:13 a.m. about 20 miles northeast of Thompson Falls.