25 Oct 1999 h. 12:57. The flank of Bocca Nuova has become extremely unstable, and every impact of a new bomb may cause the collapse of greater and greater amounts of material, which average temperature is probably also continuously increasing due to the intrusion of the lava from below and from the side. Here we observe a first episode of noteworthy size. Please note the detachment of some blocks from the flank, that contribute to increase the size of the collapse. The smoke becomes turbulent, and the new explosion from NWV won't better the situation... 1.7 MB