This morning we had a pair of earthquakes roll through from south and north of us!  Each of the earthquakes reached the 2um/s in the 0.03-0.1Hz band.  Here they are:

• 15:52 EQ Alert:  5.8 off of Guatamala coast
• 15:55 SEI_CONF transitioned to EARTHQUAKE (Niko)
• 16:18 Lockloss from this EQ

We almost made it through this one!  But it ended H1's 65hr lock & while relocking....

• 16:50 EQ Alert:  5.1 northwest of Vancouver Island
• 17:20 SEI_CONF transitioned back to WINDY

18:18:  Back to NOMINAL LOW NOISE, but Had Couple of Issues To Address

1) H1 SUS ETMx Violin MODE-6 Filter Change from over weekend Loaded during Down Time, but ETMx violin MODE-6 immediately rung up

h1susetmx on the CDS Overview had a CFC diff from changes to violin mode filters over the weekend.  This morning Rahul reviewed & hit LOAD COEFFICIENTS for this cpu.  Once we were locked & the new filter changes were engaged, ETMx MODE 6 immediately rung up.  Rahul & Dave addressed this by reverting the changes.  Rahul will alog details.

2) H1SUSTMSx SDF Diffs

REVERT was selected for M1 TEST P & Y (this was related to some INCREASE FLASHES work TJ was doing for Green Arm Locking during down time).  The thought was he was going to revert these P & Y channels back after his work, but he thinks he just selected REVERT on the SDF page, and this was the diff which came up.  He unselected this and Diffs went away!

19:12 Back to OBSERVING, but....

19:17 EQ Alert & Lockloss due to 5.6 off of Vancouver Island!!

This was a close (& much bigger EQ), and I tried transitioning to EARTHQUAKE, and moments later LARGE_EQ_NOBRSXY, but this large EQ caused several Watchdog trips to:  

• ISIs for ITMy, ITMx, ETMy, & ETMx
• TMSy & TMSx

We'll be DOWN for a while!