The magma serge is most likely at that point now. This is getting interesting.
YMR continues to have a lot of activity, just not at the level it was for several hours last night.
steve, your enthusiasm is good, your science is a bit off. The quakes you are seeing recorded are not the type that identify the movement of magma, but are a general tectoinc type. Go to this site:
http://earthquake.usgs.gov/learn/glossary/?term=harmonic%20tremor
for an example of the seismic signature of magma on the move. these seismic waves are not present in Ystone.