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Baumont, D.
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Baumont, D.
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- PublicationOpen AccessThe SHARE European Earthquake Catalogue (SHEEC) 1000-1899(2013)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;Stucchi, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Rovida, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Gomez Capera, A. A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Alexandre, P.; Observatoire Royal de Belgique ;Camelbeeck, T.; Observatoire Royal de Belgique ;Demircioglu, M. B.; Bogazici University, Kandilli Observatory and Earthquake Research Institute ;Gasperini, P.; Università di Bologna, Dipartimento di Fisica ;Kouskouna, V.; University of Athens, Department of Geophysics and Geothermics ;Musson, R. M.W.; British Geological Survey ;Radulian, M.; National Institute for Earth Physics ;Sesetyan, K.; Bogazici University, Kandilli Observatory and Earthquake Research Institute ;Vilanova, S.; Institute for Structural Engineering, Territory and Construction ;Baumont, D.; Institut de Radioprotection et de Sûréte Nucléaire ;Bungum, H.; NORSAR ;Faeh, D.; Swiss Seismological Service ;Lenhardt, W.; Zentralanstalt für Meteorologie und Geodynamik ;Makropoulos, K.; University of Athens, Department of Geophysics and Geothermics ;Martinez Solares, J. M.; Instituto Geografico Nacional ;Scotti, O.; Institut de Radioprotection et de Sûréte Nucléaire ;Živčić, M.; Agencija Republike Slovenije za okolje ;Albini, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Batllo, J.; Universidade de Lisboa, Faculdade de Ciências ;Papaioannou, C.; Institute for Engineering Seismology and Earthquake Engineering ;Tatevossian, R.; Russian Academy of Sciences, Institute of Physics of the Earth ;Locati, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Meletti, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Viganò, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia ;Giardini, D.; Swiss Seismological Service; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; In the frame of the European Commission project “Seismic Hazard Harmonization in Europe” (SHARE), aiming at harmonizing seismic hazard at a European scale, the compilation of a homogeneous, European parametric earthquake catalogue was planned. The goal was to be achieved by considering the most updated historical dataset and assessing homogenous magnitudes, with support from several institutions. This paper describes the SHARE European Earthquake Catalogue (SHEEC), which covers the time-window 1000-1899. It strongly relies on the experience of the European Commission project “Network of Research Infrastructures for European Seismology” (NERIES), a module of which was dedicated to create the European “Archive of Historical Earthquake Data” (AHEAD) and to establish methodologies to homogenously derive earthquake parameters from macroseismic data. AHEAD has supplied the final earthquake list, obtained after sorting duplications out and eliminating many fake events, and the most updated historical dataset. Macroseismic data points (MDPs) provided by AHEAD have been processed with updated, repeatable procedures, regionally calibrated against a set of recent, instrumental earthquakes, to obtain earthquake parameters. From the same data, a set of epicentral intensity-to-magnitude relations has been derived, with the aim of providing another set of homogeneous Mw estimates. Then, a strategy focussed on maximizing the homogeneity of the final epicentral location and Mw, has been adopted. Special care has been devoted also to supply location and Mw uncertainty. The paper focuses on the procedure adopted for the compilation of SHEEC and briefly comments on the achieved results.1316 252 - PublicationRestrictedCoulomb stress changes caused by repeated normal faulting earthquakes during the 1997 Umbria-Marche (central Italy) seismic sequence(2005-05-25)
; ; ; ; ; ;Nostro, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Chiaraluce, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Cocco, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Baumont, D.; Institut de Radioprotection et de Suretè Nuclèaire, France ;Scotti, O.; Institut de Radioprotection et de Suretè Nuclèaire, France; ; ; ; We investigate fault interaction through elastic stress transfer among a sequence of moderate-magnitude main shocks (5 < Mw < 6) which ruptured distinct normal fault segments during a seismic sequence in the Umbria-Marche region (central Apennines). We also model the spatial pattern of aftershocks and their faulting mechanisms through Coulomb stress changes. We compute stress perturbations caused by earthquake dislocations in a homogeneous half-space. Our modeling results show that seven out of eight main shocks of the sequence occur in areas of enhanced Coulomb stress, implying that elastic stress transfer may have promoted the occurrence of these moderate- magnitude events. Our modeling results show that stress changes caused by normal faulting events reactivated and inverted the slip of a secondary N-S trending strike-slip fault inherited from compressional tectonics in its shallowest part (1–3 km). Of the 1517 available aftershocks, 82% are located in areas of positive stress changes for optimally oriented planes (OOPs) for Coulomb failure. However, only 45% of the 322 available fault plane solutions computed from polarity data is consistent with corresponding focal mechanisms associated with the OOPs. The comparison does not improve if we compute the optimally oriented planes for Coulomb failure by fixing the strike orientation of OOPs using information derived from structural geology. Our interpretation of these modeling results is that elastic stress transfer alone cannot jointly explain the aftershock spatial distribution and their focal mechanisms.362 28 - PublicationOpen AccessThe 14 August 1708 Manosque, France earthquake: new constraintson the damage area from in-depth historical studies(2004)
; ; ; ; ;Quenet, G.; Département d Histoire, Université de Versailles-Saint-Quentin-en-Yvelines, France ;Baumont, D.; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France ;Scotti, O.; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France ;Levret, A.; Groupe APS, Site de Ruscino, Château-Roussillon, Perpignan, France; ; ; In this paper, we re-evaluate the damage area of the 14 August 1708 Manosque earthquake, Southeast France. It is the strongest event (Io = VIII MSK) of a seismic sequence that lasted from March to October 1708. We show that the spatial repartition of the damage that can be proposed based on the existing sources, is clearly biased by the abundant narrative information concerning Manosque. This sparseness in the information can be attributed to differences in communication routes or strategies between the different localities, and affects the global perception of the event, especially in the rural area. To tackle this bias, we propose to inventory the building repairs reported in non-narrative sources in order to capture the effects of the Manosque earthquake in the surrounding region. The debates and accounts (between mid-1708 and 1710) show that moderate to heavy repairs consistently affect localities in the epicentral area, covering a region of at least 12 km radius around Manosque. These building repairs, indirectly attesting to earthquake damage, provide valuable and complementary information, which resulted in a better knowledge of this event. In particular, we propose new intensity estimates (I >VI) at six localities.887 497 - PublicationOpen AccessThe French macroseismic database SISFRANCE: objectives, resultsand perspectives(2004)
; ; ; ; ;Scotti, O.; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France ;Baumont, D.; Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, France ;Quenet, G.; Département d 'Histoire, Université de Versailles-Saint-Quentin-en-Yvelines, France ;Levret, A.; Groupe APS, Site de Ruscino, Château-Roussillon, Perpignan, France; ; ; To comply with nuclear safety requirements, an in-depth research program for the revision of existing catalogues was initiated back in 1974. The priority of the partners involved in the SISFRANCE project was to establish the most exhaustive documentary databank in order to construct an intensity macroseismic database, concerning both epicentral and punctual observations. The architecture of the SISFRANCE database is presented. The strength of this parametric database is the attribution of reliability coefficients at all levels of interpretations going from the documentary sources to the final intensity estimate. To ensure homogeneity of the database, a general guideline was defined. The resulting macroseismic relational database SISFRANCE contains 65000 intensity observations attesting to the existence of 5283 earthquakes (575 with Io = VI) that have been felt on the French metropolitan territory over the past one thousand years. Thanks to the homogeneous methodology and to the continuous collaboration between BRGM, EDF and IRSN for the past 30 years, SISFRANCE is today a reference database and a key tool for seismic hazard assessment.257 329