Jesselp, feeling a bit apocalyptic.
I personally wouldn't be too concerned about the Yellowstone Caldera going bang, but if it does then tough times are ahead for everyone.
Not being a geologist I think from what I have gathered is that a Magma flow in a volcano exhibits what are called
harmonic tremors. Basically a very long duration series of earth tremors where one earthquake is pretty indistinguishable from another. (showing long period or very long wavelength frequencies coupled to the higher frequency oscillations)
Rather than look at the USGS list of earthquakes in the Yellowstone region the seismographs nearest the earthquake swarm in Yellowstone is probably a better indication of what is going on;
http://quake.utah.edu/helicorder/ymr_webi_3d.htmAlthough the University of Utah doesn't believe that there are no tremors associated with volcanic magma movement (i.e. harmonic tremors) with the current Yellowstone earthquake swarm, I do believe myself that there is some evidence of limited harmonic tremors energising the the larger earthquake events (i.e M> 2.5) that might be associated with fault slippage.
The fact that there is also another current earthquake swarm
here in northern California just north of San Francisco coupled with lots of activity in in the Mexicali volcanic activity region and the recent 5.9 earthquake of the coast of California yesterday (near Eureka again) doesn't do much for confidence either. Certainly seems like something is brewing in this part of the world on the ring of fire.