Environmental Geology

, Volume 35, Issue 2, pp 197–209

Understanding rainfall-landslide relationships in man-modified environments: a case-history from Caramanico Terme, Italy

  • J. Wasowski
Research Articles

DOI: 10.1007/s002540050306

Cite this article as:
Wasowski, J. Environmental Geology (1998) 35: 197. doi:10.1007/s002540050306
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Abstract

 The expansion of Caramanico Terme in this century has led to the urbanization of marginally stable valley slopes, and this has coincided with the apparent acceleration of landslide processes. Recent landslides on man-modified slopes were caused, but not necessarily triggered, by heavy precipitation (antecedent moisture was a more critical factor than the amount of storm rainfall). Because no important landslides on natural slopes in the same period were reported in the Caramanico area, a clear distinction must be made between natural settings and those modified by man when determining rainfall thresholds for predictive purposes. In recently urbanized mountainous environments, the thresholds used to assess landslide hazards should not be weighted too heavily on old historical records of precipitation and associated mass movements. Instead, more weight ought to be given to the period following the occurrence of any major anthropogenic and natural (e.g. high-magnitude earthquake) modification of slope setting.

Key words RainfallLandslideMan-modified slopeItaly

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • J. Wasowski
    • 1
  1. 1.Cnr-Cerist c/o Ist. Geol. Appl. Geotec. Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy Fax: +39 80 556 7944IT