Small earthquake jolts Yellowstone National Park
Monday, September 16, 2013, 3:24 PM -
A 3.6-magnitude earthquake rumbled through Yellowstone National Park Sunday, not far from Old Faithful.
According to the USGS, the quake occurred just before 10 a.m., about 9 km north of the famed geyser.
There's been an increase in seismic activity in the area over the past week, but Sunday's quake has been the strongest so far.
"A total of 130 earthquakes of magnitude 0.6 to 3.6 have occurred in these three areas, however, most have occurred near the Lower Geyser Basin," a park official said.
"The University of Utah Seismograph Stations continues to monitor Yellowstone earthquakes and will provide additional information if the earthquake swarm activity increases. Anyone who felt any of these earthquakes is encouraged to fill out a felt report on the U.S. Geological Survey website."
Yellowstone National Park is primarily in Wyoming, but it extends into Montana and Idaho.
The sprawling park boasts more than 40 waterfalls and 300 active geysers.
It attracts more than 3.3 million visitors each year.