"THE RECENT ERUPTIVE ACTIVITY ON MT. ETNA, SICILY: 1981- 1985"

In the last 15 years Mt. Etna has proved to be one of most active volcanoes in the world. In fact, besides the almost continuous activity at its summit craters, there have been 27 sub terminal eruptions connected with the NE Crater, and 12 lateral eruptions, some of which were particularly large. The eruptions occurring since 1981 have been considered in this study. In This period extremely clear evidence can be seen of the existence of at last two main type of Etnean eruptions: paroxysmal (1981) and quiet ones (1983). For each of the eruptions considered the volcanological and petrochemical data have been critically reviewed and compared with those for some of the most significant eruptions of Mt. Etna