The Relation Among Seismic Activity, Volcanic Rock Emplacement and Bouguer Anomalies in Italy

Giancarlo Scalera

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 1997, vol. 15, issue 2, 165-181

Abstract: A digitization has been performed of all volcanic rock fragments, main thrust fronts and fold axes from the 'Synthetic Structural Kinematic Map' as well as of all intrasedimentary magnetic bodies from the map of Cassano et al. These two maps complement each other, and the buried magnetized bodies fill the gaps of volcanic rocks in various regions e.g. in Tuscany. Some other major gaps can be found along the Northern Apennines, the Central and Southern Apennines and the Calabrian arc. A comparison of a map representing the 'Log C – seismic macrozonation index' to the pattern of all volcanic rocks, reveals that more seismic energy is released in those areas where volcanic rocks are absent or where their continuity in space is interrupted. Furthermore seismic activity is inhibited in those areas where minimum values of Bouguer anomalies are recorded. Copyright Kluwer Academic Publishers 1997

Date: 1997
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DOI: 10.1023/A:1007979124693

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