Here is a update of the 8 blasting between 2025/06/18 03:22:49 UTC and 2025/06/26 13:59:52 UTC. The plots are available at DAC wiki.

• 6 times: lockloss occurred from OBSERVATION state
  • The the amplitude of the seismic motion was large enough to make the lockloss.
  • Even though the bomb size was 6.2 kg (which is relatively small), the lockloss occurred. I guess this is because the blasting point is approaching to the KGRA tunnel.
• 2 times: interferometer was in down state or during lock acquisition.