Anonymous ID: d49188 Dec. 2, 2018, 9:44 p.m. No.4125352   🗄️.is 🔗kun

>>4125315

Volcanologist call this sort of stuff "volcano music". Volcanos can emit rumblings through mechanisms other than rocks breaking (earthquakes).

It's most likely something similar to this:

https://www.sciencedaily.com/releases/2018/06/180615154500.htm