The Yellowstone Volcano Observatory monitors all things volcanic in Yellowstone and can even take the Park’s temperature from outer space!  A massive partnership of scientists work together from many agencies.  The principal partners are the USGS, Yellowstone National Park, and the University of Utah and  YVO now includes the three state geological surveys of Wyoming, Montana and Idaho, UNAVCO, Inc., and the University of Wyoming.   Their mission is to provide timely monitoring and hazard assessment of volcanic, hydrothermal, and earthquake activity in the Yellowstone Plateau region.   Check them out here! Link: YVO