Good morning, Stations at Aniakchak and Veniaminof are currently undergoing maintenance and upgrade work and should be back online and improved soon. No anomalous activity is currently seen at Katmai or Gareloi and both are currently at Aviation Color Code Green and Volcano Alert Level Normal. Thank you, AVO Why has ANIAKCHAK and Veniamimof been completely blank and seemingly shut down for the week? Also why do places such as Katmai Gareloi have nothing but squiggly lines all over them? What does that even mean? Deuce the seismograms show venting?