The U.S. Geological Survey says a magnitude 4.1 earthquake has been recorded three miles underground near Challis, Idaho.
USGS monitors recorded the quake at 6:21 a.m. Thursday. It occurred nine miles north-northwest of the town.
The Weather Channel says it was the strongest earthquake recorded in Idaho since June of 2006. A USGS intensity map says the quake resulted in light shaking near the epicenter, and weak shaking as far south as the Wood River Valley.
The largest earthquake ever recorded in Idaho was on October 28, 1983 when a 6.9 magnitude quake shook Borah Peak.