3 minor quakes rattle Yellowstone

YELLOWSTONE NATIONAL PARK, Wyo. (AP) — Geologists report three more minor earthquakes rattled Yellowstone National Park as part of swarm that began Sunday.

The Wyoming State Geological Survey says the Wednesday earthquakes measured magnitudes 2.9, 3.6 and 3.7. There were no reports of injuries or damage.

Yellowstone National Park spokesman Al Nash says people reported feeling the Wednesday quakes at the park locations of Old Faithful, Canyon and Mammoth and in the Montana towns of West Yellowstone and Gardiner.

The University of Utah Seismograph Stations report that the swarm of earthquakes are probably the result of a slip on pre-existing faults rather than underground movement of magma.

It says the swarm has included 901 earthquakes, ranging from magnitude 0.5 to 3.8.