Reports until 01:18, Sunday 13 September 2015
H1 General
cheryl.vorvick@LIGO.ORG - posted 01:18, Sunday 13 September 2015 - last comment - 02:03, Sunday 13 September 2015(21459)
Earthquake in Mexico breaks lock

Magnitude 4.9, 55km SSW of Topolobampo, Mexico 2015-09-13 07:40:40 UTC

The seismometer traces are going up again after the first spike from the initial earthquake.

Not yet able to even hold arms in lock in green.

Comments related to this report
cheryl.vorvick@LIGO.ORG - 01:35, Sunday 13 September 2015 (21461)
Link

Seismic traces are now off the top of the plot and a number of watchdogs tripped.  All optics are now either tripped or in safe mode.

There are now 3 big earthquakes:

  •     magnitude 6.8, 86km SW of Topolobampo, Mexico 2015-09-13 08:14:12 UTC 14.0 km
  •     magnitude 5.3, 56km SSW of Topolobampo, Mexico 2015-09-13 07:57:40 UTC 20.8 km
  •     magnitude 4.9, 55km SSW of Topolobampo, Mexico 2015-09-13 07:40:40 UTC 10.0 km
     
cheryl.vorvick@LIGO.ORG - 02:03, Sunday 13 September 2015 (21462)
Link

Screenshot of ops overview and list of HEPIs/ISIs/Optics that are tripped. 

From the time optics started to trip, until the last optic tripped, was a total of 18 seconds.

Five optics tripped at 8:26:26UTC - eight optics tripped at 8:26:44, which could have gone to safe mode, if I could have clicked faster.

I am proposing we add the capability of putting all optics in safe mode with one button, once it's clear an earthquake is going shake enough to trip optics.

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