Strange sound from underground

Friends, I watered a young apricot tree in a large garden. I poured out 8.4 liters of water. This strange sound began to be heard from underground. I didn't see anything. Perhaps the sound came from an underground nest of wasps or some other insects.

I don't know what to think. This is one of the most unusual cases in our rural life this summer. Gardening sometimes brings surprises.

And this is a video of another surprise from nature.
Video: "Spider Argiope bruennichi"
https://rumble.com/v59l1f6-spider-argiope-bruennichi.html