The number and frequency of earthquakes in the Yellowstone Park area is increasing every day:

link.

"CHEYENNE, Wyo. (AP) — Yellowstone National Park was jostled by a host of small earthquakes for a third straight day Monday, and scientists watched closely to see whether the more than 250 tremors were a sign of something bigger to come. Swarms of small earthquakes happen frequently in Yellowstone, but it's very unusual for so many earthquakes to happen over several days, said Robert Smith, a professor of geophysics at the University of Utah."

Related Video:

http://www.bbc.co.uk/sn/tvradio/programmes/supervolcano/index.shtml

http://www.youtube.com/results?search_query=supervolcano

http://www.youtube.com/watch?v=WF-RKzqNtz0

http://www.youtube.com/watch?v=KdCECslNL78


Might be a good time to check your dust mask collection.

If you live on the East Coast.