Papers by Roberto Giannecchini
Atti 9a Conferenza …, Jan 1, 2005
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Quaternary …, Jan 1, 2007
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The results of a multidisciplinary research on the additional causes in historical landslides ind... more The results of a multidisciplinary research on the additional causes in historical landslides induced by earthquakes in the north-western sector of the Northern Apennines (Italy) are discussed. The first investigation phase was based on bibliographic records on earthquakes and landslides. This step led to the collection of 18 well documented landslides induced by seismic shocks. Up to 11 landslides were set in motion by a strong (6.5 magnitude) earthquake which struck the Tyrrhenian side of the Northern Apennines on September 7th 1920. Other landslides were triggered by earthquakes occurring in 1779, 1832, 1952, 1965, 1996 and 2003. The landslides were triggered by earthquakes ranging from 3.3 to 6.5 magnitude (IV to X MCS degrees) with epicentres of 6 to 40 km away. The earthquake-related landslides studied are mainly complex or slide-type movements. The rock types involved are prevalently calcareous flysch, clay shales and debris. In order to understand the complexity of the relat...
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Natural Hazards and Earth System Science, 2006
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Advances in Geosciences, 2005
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The intense quarrying activities in the Carrara marble district (Apuan Alps, Italy) has led to th... more The intense quarrying activities in the Carrara marble district (Apuan Alps, Italy) has led to the formation of widespread and thick quarry waste accumulations, which lie on steep slopes and invade many valley bottoms. In this area, rainstorms often cause floods, landslides, debris flows and deaths (e.g. on September 23, 2003). This research is aimed at determining the triggering conditions of the instability involving quarry waste. Firstly, the 23 September 2003 event was analysed in order to characterize its pluviometric features and effects. Then, three quarry dumps were selected upstream of Carrara and their evolution was studied. Subsequently, geomorphologic surveying distinguished areas with different characteristics (quarry activity, landslide areas, debris flow prone areas, land use, etc.). Furthermore, several grain size analyses were performed. Finally, in order to evaluate the hydrological behaviour of the quarry waste, the discharge of a spring at the toe of a quarry dum...
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The results of a multidisciplinary research on the additional causes in historical landslides ind... more The results of a multidisciplinary research on the additional causes in historical landslides induced by earthquakes in the north-western sector of the Northern Apennines (Italy) are discussed. The first investigation phase was based on bibliographic records on earthquakes and landslides. This step led to the collection of 18 well documented landslides induced by seismic shocks. Up to 11 landslides were set in motion by a strong (6.5 magnitude) earthquake which struck the Tyrrhenian side of the Northern Apennines on September 7th 1920. Other landslides were triggered by earthquakes occurring in 1779, 1832, 1952, 1965, 1996 and 2003. The landslides were triggered by earthquakes ranging from 3.3 to 6.5 magnitude (IV to X MCS degrees) with epicentres of 6 to 40 km away. The earthquake-related landslides studied are mainly complex or slide-type movements. The rock types involved are prevalently calcareous flysch, clay shales and debris. In order to understand the complexity of the relat...
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Changing climate is often used to explain the proliferation and escalation of extreme events. In ... more Changing climate is often used to explain the proliferation and escalation of extreme events. In many cases, the climate changes, though significant, do not indicate a defined trend but may fit the normal climate cycles. On this controversial topic the scientific discussion is still open. Medium and long-term case studies suggest a change in rainfall trends and several authors individuate an apparent increase of rainstorms frequency in time. Such events have often caused landslides and floods with serious damages to territory and community. This paper summarises characteristics and main effects of the meteorological events which hit the provinces of Lucca and Pistoia in December 2009, focusing especially on their consequences on slopes. Moreover, it also describes the main characteristics of the heavy rainstorm which hit the Massa hinterland.
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Rendiconti online della Società Geologica Italiana, 2015
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Rendiconti online della Società Geologica Italiana, 2015
ABSTRACT On 10 November 2011 some small coastal basins of the Tigullio gulf and the middle Lavagn... more ABSTRACT On 10 November 2011 some small coastal basins of the Tigullio gulf and the middle Lavagna and Sturla valleys (eastern Liguria), were hit by an intense rainfall. Flash floods involved the city of Chiavari and shallow landslides were triggered on the slopes, causing severe damage to settlements and road network. Some buildings were destroyed and two casualties occurred at Leivi, in the lower Lavagna valley. This paper synthesizes the results of preliminary surveys carried out few days after the event in the area most affected by shallow landslides. The investigations, which are still in progress, have contributed to understand the characteristics of both triggering rainfall and landslide source areas. These achievements will be helpful in studying rainfall thresholds, shallow landslide modeling, landslide susceptibility and risk assessment for the study area.
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Physics and Chemistry of the Earth, Parts A/B/C, 2012
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Engineering Geology for Society and Territory - Volume 2, 2015
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Landslide Science and Practice, 2013
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Quaternary International, 2007
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Quaternary International, 2007
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Papers by Roberto Giannecchini