Etna volcano, Sicily, Italy The Voragine during 1995-1999 Although the Voragine was the last of the four summit craters to join in the 1995-1998 activity and its activity initially was very weak, it was the crater to produce two of the most significant eruptive events of the current eruptive cycle, on 22 July 1998, and 4 September 1999.
(the Voragine; was; the last of the four summit craters to join in the 1995-1998 activity and its activity initially was very weak) (its activity; was; very weak; T:initially) (it; was; the crater to produce two of the most significant eruptive events of the current eruptive cycle,; T:during 1995-1999) (the crater; to produce; two of the most significant eruptive events of the current eruptive cycle)
the Voragine its activity it the crater
was was was to produce
the last of the four summit craters to join in the 1995-1998 activity and its activity initially was very weak
very weak T:initially
the crater to produce two of the most significant eruptive events of the current eruptive cycle, T:during 1995-1999
two of the most significant eruptive events of the current eruptive cycle