Abstract
The 1991–1993 lava flow is the most voluminous flow erupted at Mount Etna, Sicily, in over 300 years. Estimates of the volume obtained by various methods range from 205×106 m3 (Tanguy 1996) to over 500×106 m3 (Barberi et al. 1993). This paper describes the results of an electronic distance measurement (EDM)-based field survey of the upper surface of the 1991–1993 flow field undertaken in 1995. The results were digitised, interpolated and converted into a digital elevation model and then compared with a pre-eruption digital elevation model, constructed from a 1 : 25 000 contour map of the area, based on 1989 aerial photographs. Our measurements are the most accurate to date and show that the 1991–1993 lava flow occupies a volume of 231±29×106 m3.
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Received: 20 July 1996 / Accepted: 5 November 1996
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Stevens, N., Murray, J. & Wadge, G. The volume and shape of the 1991–1993 lava flow field at Mount Etna, Sicily. Bull Volcanol 58, 449–454 (1997). https://doi.org/10.1007/s004450050153
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DOI: https://doi.org/10.1007/s004450050153