Measuring from a fraction of an inch to over a yard in thickness, each took from a few seconds to a few minutes to form. Geologist Steven Austin described these pyroclastic flows as ground-hugging, fluidized, turbulent slurries of fine volcanic debris.
Kila moja ikipanguza bonde la chini kwa uembamba mwingine.Kipimo chenyewe ni kutokana na sehemu ya inchi juu ya yadi kwa unene,kila moja ilifanyika kwa sekunde chache hadi dakika chache.