Take a look at these two sites:
You can see on Yellow alert status the public doesn’t need to be informed.
after what happened at Long Valley (mammoth) it is very likely they will not.
http://quake.wr.usgs.gov/prepare/factsheets/LongValley/
http://volcanoes.usgs.gov/activity/alertsystem/index.php
then look at their statement again:
”An earthquake swarm continues on the northwest edge of Yellowstone Caldera. There is still no indication of premonitory volcanic or hydrothermal activity. As such, the Volcanic Alert Level remains at Normal.”
In other words no change in surface temperatures which would be highly unlikely when it was still 6 miles down and there is definitely no new vents.
those two signs are indications of “Strong evidence of magma movement at shallow depth.” which is red alert.
given that they could still between strong unrest and Intense unrest(yellow alert) it would be there call.
See if I am correct here.
No activity to speak of since 5am, by my calculations we should see a ramp up starting somewhere in the 1800 to 1900hr timeframe.