A magnitude-4.1 earthquake shook the ground Friday afternoon near Jackson.
The earthquake took place at 4 p.m. about 18 miles outside of Jackson, according to the United States Geological Survey.
Wyoming State Geologist Tom Drean called the earthquake "moderate" in size.
"It's a little larger than we typically experience, but it's nothing to be alarmed about," he said.
The Wyoming State Geological Survey was gathering information on the earthquake Friday afternoon, Drean said. He said they hadn't heard of any damage or injuries caused by the quake. He said it was unlikely an earthquake of its size would cause damage.
Those in the area at the time of the quake might have felt slight ground roll and shaking, Drean said.
He said Wyoming experiences earthquakes large enough to be felt a couple of times a year. A 3.4 magnitude earthquake hit 12 miles outside Midwest in December.