07-20-2021, 02:58 AM
I have a few collapsed areas on my lot with small openings into lava tubes. There are several areas which when I jump sound hollow so are most likely a tube underneath. The area for my house pad was ripped and then poured concrete and hasn’t settled too much in 40 years, other than what I consider acceptable, normal settling. For instance, window screens are no longer perfect rectangles but slightly irregular quadrilaterals.
On the other hand, I spoke with someone up on 4th Street and he swears when waves are crashing on the ocean cliffs the sound travels up a tube with an opening in his yard, loud enough that he can hear it from his home on quiet nights.
On the other hand, I spoke with someone up on 4th Street and he swears when waves are crashing on the ocean cliffs the sound travels up a tube with an opening in his yard, loud enough that he can hear it from his home on quiet nights.