After today's Long Maintenance Day, handed the keys to H1 at 0:30utc (5:30pmPDT).  Cheryl started an alignment & that was straightforward.  Then went for locking, and for the most part that was fine.  At 2:10utc (7:10pmPDT) we made it back to NOMINAL LOW NOISE!

While going through some SDF diffs, H1 had a few glitches, and then 20min later, got notification of an incoming earthquake (6+ from Japan & the S/P waves were large).  EQ Response plot recommeded going to the LARGE EARTHQUAKE, but since I didn't want to lose lock, I thought I would try EARTHQUAKE.  Shortly after this transition or at the same time, we saw the S & P waves.  Then we lost lock at 2:29utc (7:29pmPDT)!

Now it's time for lunch.  And missed out a few minutes of OBSERVING!  But will give it another go after the earth settles down.