According to users of an online forum, abovetopsecret.com, Yellowstone has started showing signs of activity again.
The user who follows activity online using real-time earthquake measurement tools (such as http://www.quake.utah.edu/helicorder/ymr_webi.htm) posted the following:
It appears we have a flurry of smaller seismic activity somewhere between YMR and YHL going on. And it is persistent, with over 30 events now that I can count, and more coming in by the minute. Will update, stay tuned…
He then went onto say:
Well over 50 events now, so a small swarm it is already. And now what appears to be some separate seismicity happening at the Lake.
We will keep you updated with any signs of activity as we hear about it.