Indeed! Man those are some spooky sounds! Like the demons of hell trying to break out...
yeah those were great recordings....!
the thing is if memory serves me correct the tremors were only recorded right before the new volcano vent appeared in the ocean back in 2011.
But it’s just so hard to tell which recorders now are visualizing the same data. I know for sure that CHIE is scaled way back but not sure about the other Islands.