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Mariotti, Dante
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Mariotti, Dante
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dante.mariotti@ingv.it
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- PublicationRestrictedEarthquake-induced landslides: from historical data to new empirical relationships.(2023-11)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;; ; Purpose: We present a new database of historical earthquake-induced landslides (EILs) for the Italian territory, developed in framework of the CFTI5Med historical earthquake catalogue (https://storing.ingv.it/cfti/cfti5/) with a twofold goal: 1) extending back in time the knowledge of seismic induced environmental effects so as to be able to forecast scenarios of future large events (i.e. with M>5.5), and 2) to develop new empirical relationships connecting landslide distribution and seismic parameters. Method: We first revised the database of seismic-induced environmental effects connected to the CFTI historical seismic catalogue, collecting and analysing new historical sources and revising those already studied in the past. In addition, we analysed recent scientific articles and technical reports and made comparisons with other digital archives such as the CEDIT (https://doi.org/10.4408/IJEGE.2012- 02.O-05) and the EEE catalogues (http://eeecatalogue.isprambiente.it/). As a second step, we tried to accurately locate the historical EILs in a GIS environment using the coeval descriptions and comparing them with topographic maps and geographic names. In some cases, it was possible to associate individual EILs with landslides already included and described in the Italian Landslide Inventory (IFFI database https://www.progettoiffi.isprambiente.it/). The third step was aimed at the development of new empirical attenuation relationships using the implemented database. To do so, we related the variation of EILs density with distance from the epicentre as a function of the earthquake magnitude. The seismic events were subdivided into three magnitude classes to account for the different extent of the maximum area affected by EILs and released energy. In addition, using the shake maps of 38 out 159 historical earthquakes of our dataset, we also developed a new empirical relationship relating the variation of EILs density with distance as a function of the peak ground acceleration. Results: The result of this work is a new database of historical EILs, composed of more than 1,000 landslides associated with more than 150 historical earthquakes or seismic sequences occurred between 117 b.C.E. and 1997. Each EIL is classified on the basis of the accuracy of its location and of the slope movement type. The updated dataset is collected in the new CFTI Landslides database, connected to but independent from the CFTI5Med database, and it is publicly accessible online through a dedicated open-source geographic interface, designed to be interoperable with both INGV and external databases through dedicated web services. As empirical results, we found that the cumulative density of EILs decreases with distance from the earthquake epicentre following a power law relationship and the power law relationship derived from PGA value shows the increasing landslide density with increasing acceleration, defining a threshold value of PGA between 0.2-0.3 g. Conclusions: The implementation of the new historical EIL database for the Italian territory, on one hand allowed for a better definition of the environmental effects triggered following large earthquakes, on the other hand, dramatically increased the number of data points available for deriving empirical relationships and consequently their statistical significance.3 1 - ProductOpen AccessCFTI5Med, Catalogo dei Forti Terremoti in Italia (461 a.C.-1997) e nell’area Mediterranea (760 a.C.-1500)(2018)
; ; ; ; ; ; ; ;; ; ; ; ; 235 1186 - ProductOpen AccessCatalogue of Strong Earthquakes in Italy (461 B.C.-1997) and Mediterranean Area (760 B.C.-1500)(2007-08)
; ; ; ; ; ; ;Guidoboni, E.; SGA Storia Geofisica Ambiente ;Ferrari, G.; SGA Storia Geofisica Ambiente ;Mariotti, D.; SGA Storia Geofisica Ambiente ;Comastri, A.; SGA Storia Geofisica Ambiente ;Tarabusi, G.; SGA Storia Geofisica Ambiente ;Valensise, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;; ; ; ; The Catalogue lists earthquakes that occurred in Italy between 461 B.C. and 1997, and earthquakes that occurred in the general Mediterranean area between the VIII century b.C. and the XV century. Italian earthquakes are based on the latest release of the Catalogo dei Forti Terremoti in Italia (Catalogue of Strong Italian Earthquakes), commonly referred to as CFTI3 (Boschi et al., 2000), with subsequent additions and improvements. The CFTI4 contains all Italian earthquakes having epicentral intensity VIII or larger and a selection of smaller earthquakes (total number of earthquakes: 1257). All data supplied in the Catalogue are based on ad hoc historical investigations and on specifically reinterpreted and discussed historical sources. Since its first 1995 release the Catalogo dei Forti Terremoti has been substantially extended and improved with respect to a) the earthquakes analyzed, b) the number of historical sources considered, and c) the number of assessed intensities. Mediterranean earthquakes are based on two catalogues: the Catalogue of Ancient Earthquakes in the Mediterranean area up to the 10th century (Guidoboni et al., 1994), containing 300 earthquakes that involved 19 present-day countries around the Mediterranean, and on the Catalogue of Earthquakes and Tsunamis in the Mediterranean area from the 11th to the 15th century (Guidoboni and Comastri, 2005), containing 383 earthquakes relative to 19 countries. Overall the CFTI4 containes 1,739 earthquakes, 482 of which occurred outside of Italy. Both catalogues report historical sources in their original language. The Catalogue is accessible through a specifically designed web-GIS interface. All commands are easy to use and fully described in English in the Help section. Due to the nature and history of the Catalogue, however, the comment texts that accompany all Italian earthquakes are currently available only in Italian. To allow their visualization in the web-GIS environment of the Catalogue, data on Mediterranean earthquakes have been reorganized following the same standards and format as the data on Italian earthquakes. Nevertheless, some of the information available for Italian earthquakes may not be readily available for all Mediterranean earthquakes. General information on the adopted method of historical research and on the structure and contents of the Catalogue is given in a series of articles published in a special issue of ANNALI DI GEOFISICA (vol.43, N. 4, August 2000) along with CFTI3 (Boschi et al., 2000). Although there have been significant advancements since the year 2000, these articles describe satisfactorily the main research issues, most of which are still the object of scientific debate.1037 2201 - PublicationOpen Access<> earthquakes: a growing contribution to the Catalogue of Strong Italian Earthquakes(2000-08)
; ; ; ;Mariotti, D.; SGA, Storia Geofisica Ambiente, Bologna, Italy ;Comastri, A.; SGA, Storia Geofisica Ambiente, Bologna, Italy ;Guidoboni, E.; SGA, Storia Geofisica Ambiente, Bologna, Italy; ; The particular structure of the research into historical seismology found in this catalogue has allowed a lot of information about unknown seismic events to be traced. This new contribution to seismologic knowledge mainly consists in: i) the retrieval and organisation within a coherent framework of documentary evidence of earthquakes that took place between the Middle Ages and the sixteenth century; ii) the improved knowledge of seismic events, even destructive events, which in the past had been "obscured" by large earthquakes; iii) the identification of earthquakes in "silent" seismic areas. The complex elements to be taken into account when dealing with unknown seismic events have been outlined; much "new" information often falls into one of the following categories: simple chronological errors relative to other well-known events; descriptions of other natural phenomena, though defined in texts as "earthquakes" (landslides, hurricanes, tornadoes, etc.); unknown tremors belonging to known seismic periods; tremors that may be connected with events which have been catalogued under incorrect dates and with very approximate estimates of location and intensity. This proves that this was not a real seismic "silence" but a research vacuum.220 552 - PublicationOpen AccessAn unknown destructive earthquake in 18th century Sicily(1995-11)
; ;Mariotti, D.; SGA, Storia Geofisica Ambiente, Bologna, ItalyThe current Italian seismic catalogues are generally considered complete, as regards the destructive seismic events which occurred from the 17th century onwards. In fact, research performed using target methodologies still reveal earthquakes of high intensity, not yet known to the seismological tradition. This is the case of an earthquake which occurred on 14 September 1780, which caused serious damage and victims in some towns of the Tyrrhenian coast of North-eastern Sicily (I0, = VIII MCS). The information reported in an anonymous printed account was verified in the administrative records; this allowed a reconstruction of a macroseismic outline of great interest, which may make more precise the seismic hazard assessment in an area at high environmental risk due to the presence in Milazzo of an important chemico-industrial complex.176 219 - PublicationRestrictedVesuvius: Earthquakes from 1600 up to the 1631 eruption(2011)
; ; ;Guidoboni, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;Mariotti, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;his study examines the seismicity of Vesuvius in the decades leading up to the great eruption of 16th December 1631. The period 1600–1631 is analyzed with the aims to point out any long-term seismic precursor of the eruption. The historical research has focused on contemporary Neapolitan memoirs and a large screening of diplomatic correspondence from the main Italian courts of the age (Florence, Mantua, Parma, Venice and the Vatican). Information was gathered on 18 earthquakes that were felt in Naples between 1601 and 1630. These data were listed with the sequence of 34 shocks that took place in November and December 1631, that preceded the beginning of the eruption. The 52 seismic events that have been highlighted overall are unknown in the parametric catalogues of Italian historical seismicity and 17 are unknown even in the scientific literature. The authors' view is that it makes little sense to talk of one single previous seismic precursor in this case, given the frequent seismic sequences and tremors noted by contemporaries from January 1616 onwards. The present state of knowledge suggests that seismic activity is a strong, early and persistent warning sign of an eruption of Vesuvius, of the same type as that of December 1631.192 26 - PublicationOpen AccessAppendix to volume 44 N° 4, 2001(2000-08)
; ; ; ; ; ; ;Boschi, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia ;Guidoboni, E.; SGA, Storia Geofisica Ambiente, Bologna, Italia ;Ferrari, G.; SGA, Storia Geofisica Ambiente, Bologna, Italia ;Mariotti, D.; SGA, Storia Geofisica e Ambiente, Bologna, Italia ;Valensise, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Gasperini, P.; Università di Bologna, Dipartimento di Fisica, Settore Geofisica, Bologna, Italia; ;; ; ; 264 552 - PublicationOpen AccessI terremoti dell'Appennino umbro-marchigiano. Area centrale e meridionale dal I secolo a.C. al 2000(2007-09-26)
; ; ; ; ; ; ; ;Bertolaso, G.; Dipartimento Protezione Civile ;Boschi, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia ;Guidoboni, E.; SGA Storia Geofisica Ambiente ;Ferrari, G.; SGA Storia Geofisica Ambiente ;Castenetto, S.; Dipartimento Protezione Civile ;Mariotti, D.; SGA Storia Geofisica Ambiente ;Valensise, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; ;; ; ; 397 1676 - PublicationRestrictedIl terremoto e il maremoto del 1908: effetti e parametri sismici(2008-12)
; ; ;Guidoboni, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;Mariotti, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;; ; ; ; ; ;Bertolaso, G.; Dipartimento della Protezione Civile ;Boschi, E.; Istituto Nazionale di Geofisica e Vulcanologia ;Guidoboni, E; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia ;Valensise, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; ; Fra i più forti eventi sismici accaduti in Italia per perdite umane e impatto economico, questo terremoto fu paragonato a una guerra perduta. Sulla base di relazioni scientifiche del tempo e documenti istituzionali è qui delineata l’immagine degli effetti nei paesi danneggiati, di cui 462 in Calabria e 240 in Sicilia. Questa grande impronta sul territorio non è solo una drammatica pagina di storia sociale del Paese, ma anche un insieme di dati preziosi per localizzare la sorgente sismica e comprenderne la dinamica.634 227 - ProductOpen AccessCFTIlandslides, Italian database of historical earthquake-induced landslides(2024-02-08)
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