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Mount Etna
Setting
Mount Etna is one of the most active and most studied
volcanoes in the world. It is located in Sicily, Italy, near the city of
Catania.
The last eruption started on 14 December 1991 in the Valle del Bove, a large
amphitheatre formed by collapse of the eastern flank. Lava erupted along a
fracture system that had opened in 1989, and covered most of the southern part
of the Valle del Bove. The eruption stopped on 31 March 1993 after 473 days. The
rate of lava production remained stable during most of the eruption, and the
total erupted volume was ~3x10^8 m^3. The current activity of Etna is monitored
by the Instituto Internazionale di Vulcanologia (IIV) in Catane.
Photographs of Etna
1: Etna seen from the south.
2: Picture of Etna taken by an automatic camera located
4km SSE of the top of the volcano (IIV-Catane).
3: Opened crack in Piano del Lago, Etna, September 1989.
4: Strombolian activity at North-East crater, in
September 1986.
5: Lava flow during the 1985 eruption of Etna.
PHOTOS 1,4,5: Pierre Briole. 2: Istituto Internazionale di Vulcanologia, Catane. 3: Salvatore Silvestri, Geneve.
Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry