Earthquake swarm builds at Yellowstone caldera (8th May 2011)

Yellowstone swarm quake notice. Over the last few days, there have been a number of small quakes erupting at Yellowstone. The strongest quake in this small swarm occurred today with a 3.3 magnitude earthquake at a 6 km depth below the park.
[link to theextinctionprotocol.wordpress.com]
[link to www.seis.utah.edu]