Direct measurements (12): Acoustic records
Strombolian explosions or fire fountains:
origin of large bubbles at depth (carry informations from depth)
understanding large bubbles, is understanding eruptive behaviour
Acoustic measurements:
remote measurements of « magmatic » bubbles at the vent
Observations at the surface
+ flow model in conduit
quantitative information at depth
Stromboli,
1992
Fire fountain
Puu o’O eruption
(Kilauea, Hawaii)