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Gasparini, Calvino
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Gasparini, Calvino
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- PublicationOpen AccessThe November 23, 1980 Irpinia earthquake: an analysis with the new procedure of intensity evaluation(1993)
; ; ; ; ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;De Rubeis, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Maramai, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Murru, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; ; 129 354 - PublicationOpen AccessTyrgeonet: a global positioning system geodetic network for the geodynamical survey of the Italian peninsula(1993)
; ; ; ; ; ; ;Achilli, V.; Dipartimento di Ingegneria Civile Edile,Università di Roma Tor Vergata, Italia ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Baldi, P.; Dipartimento di Fisica, Settore Geofisica Università di Bologna, Italia ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Marsella, M.; Dipartimento di Ingegneria, Università di Bologna, Italia ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; ; ; ; 168 318 - PublicationRestrictedStudy of the seismic sequence of Porto S. Giorgio (Marche)-3 july 1987(1989-07)
; ; ; ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Tertulliani, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; In this paper we present some remarks about the Porto S. Giorgio seismic sequence, occurred in central Italy on 3 July 1987 with a main shock of Md=4.9. The sequence, occurred in a low seismicity zone, was characterized by absence of foreshocks. Focal mechanisms of the four greatest shocks, derived from P-first arrivals, show compressive solution with negligible strike components; it seems to confirm the tectonic trend of thrust faults remarked by some authors. Some characteristics of the sequence underline the coupling between the cumulative frequency vs. time trend and the modality of a Kelvin's solid strain release which has a time relaxation of about 5 days. Furthermore we analyse b-value and Gutemberg relation to evaluate the energy release. Finally macroseismic analysis related to the felt area is shown with isoseismal map175 27 - PublicationOpen AccessRocca di Papa observatory reborn museum(2005-11)
; ;Gasparini, C.; INGV – Istituto Nazionale di Geofisica e Vulcanologia, RomaThanks to comune of Rocca di Papa and Istituto Nazionale di Geofisica e Vulcanologia, the historical building of geodynamic observatory, become a geophysics museum: a journey to discover the unreached126 174 - PublicationOpen AccessNorthern Sicily, September 6, 2002earthquake: investigation on peculiarmacroseismic effects(2003)
; ; ; ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Tosi, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;De Rubeis, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; The Northern Sicily, September 6, 2002 earthquake (Ml = 5.6, MW = 5.9) is investigated under macroseismic aspect: peculiar effects are collected besides standard effects normally used to define Mercalli-Cancani-Sieberg (MCS) intensity. They include sound heard during the quake, fear felt and a simple qualitative description of ground movement felt. Spatial coverage of such information is dense enough to be statistically processed, to give an interpolated, smoothed field for each data type. Sound heard is compared with theoretical sound field produced considering source geometry and transmission of waves to air, it also confirms the Southern Sicily amplification disclosed by macroseismic intensity values. Fear felt is also in agreement with macroseismic intensity field while type of ground motion is a partly independent aspect.191 416 - PublicationOpen AccessAn analytic method for separating local from regional effects on macroseismic intensity(1995-03)
; ; ; ;Tosi, P.; Istituto Nazionale di Geofisica, Roma, Italy ;De Rubeis, V.; Istituto Nazionale di Geofisica, Roma, Italy ;Gasparini, C.; Istituto Nazionale di Geofisica, Roma, Italy; ; nterpretation of macroseismic data is hazardous, due to its qualitative nature. This, linked with errors in eval- uation,) and the variations of local intensity, makes it difficult to draw valid conclusions. This study presents a statistical method as the basis for distinguishing the diverse components that constitute a macroseismic field. The method is based on the polar transformation of the coordinate system and on the analysis of the fractal di- mension of the intensity values, exposed to the gradually increasing action of a two-dimensional filter. The fractal dimension is shown to be an ideaI parameter with which to measure out the filtering process in order to separate the local components from the regional trend. This method has been applied to two Italian events and to an earthquake which took pIace in the Former Yugoslavian Republic of Macedonia (FYROM).155 342 - PublicationOpen AccessLA RETE SISMICA DELLA PIANA DI GUIDONIA (LAZIO): DATI PRELIMINARI(2004-12-14)
; ; ; ; ;Pagliuca, N. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Pirro, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Di Maro, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; ; After the seismic period during 2001-2002 that has interested the Plain of Guidonia, situated about fifteen kilometres NE of Rome, which events greatest resentment reached the V-VI MCS, have been installed a local seismic purchased by Comune of Guidonia-Montecelio (Rm). The seismic network (RLG) consists of three digital seismic stations with distances of each other about 2 kilometers, activated to leave from the June 2004 and equipped with three components 1 Hz sismometer. Subsequently, the RLG has enriched of other four digital stations equipped with three components 5 Hz sismometer This network has like main objective the high quality data that agree a better definition of the seismic local activity. These data, that integrate those of the Seismographic Centralized National Network (SCNN), agreed a better ipocentre location. Network geometriy was chosen so as to give back the RLG an independent structure to carry out reliable seismicity locations that characterizes the plain of Guidonia. Unfortunately, industrial and human activity, increases in considerable manner the seismic noise, giving back difficult the record of small events. For this motive the location of the sites was more times changed, and lately, after a seismic crisis in the northern side of the Mountains Cornicolani, that has presented with the same features of that of 2001 of Guidonia, some stations were moved in the neighboring village of Palombara Sabina (Rm).234 1118 - PublicationOpen AccessIl Museo Geofisico di Rocca di Papa: tra divulgazione e ricerca scientifica(2007-11)
; ; ; ;Pagliuca, N. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Pietrangeli, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; ; The Geophysical Museum of Rocca di Papa is located in an historical, three floor building, of the small town Rocca di Papa, twentyfive kilometres from Rome. The edifice was, until 1931, the place of the Geodynamic Observatory, created in 1889 by the famous seismologist Michele Stefano De Rossi. The museum is due to an agreement between the Town Council of Rocca di Papa and the Istituto Nazionale di Geofisica (INGV, one of the most important European Research Institutions operating in geophysics) signed in 2000. After bureaucratic passages and two years of important restoration the museum was open to the public at 26th February 2005. The main aim of the Geophysical Museum is to illustrate how experimental data and information, accumulated by science in the course of time, led to new hypotheses on the internal structure of the Earth. The target of the educational and of the scientific disciplines of the Museum is mainly school students of all ages, but also local residents, and tourists: since its opening, approximately two years ago, the Museum has been visited by more than eight-thousand people. Posters, movie presentations, plastics, games and interactive experiments explain to visitors the main topics of geophysics and the stages of scientific research which led to the modern concept of the Earth internal model. Seismic instruments and games are easily accessible so that the visitor can interact with them: experimental data are recorded in real time and displayed through different monitors placed throughout the rooms. The museum has also a small cinema for three dimensional projections which allow visitors to experience a virtual tour on the Alban Hills, the seismic zone where the museum is located, and also on some other Italian tectonic belts where earthquakes occurred in past. The article introduces the museum and the seismological characteristics of the area, and describes the activities, the exhibits of the Museum and their methodology.335 261 - PublicationOpen AccessCrustal activities monitoring program in the Albani Hills volcanic group (Rome, central Italy)(1989-09-04)
; ; ; ; ; ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Achilli, V. ;Strollo, R.; ; ; ; ;; ; ;Schenk, V.Scenkova, Z.A geodetic and seismic research program is starting in the Albani Hills volcanic area (central Italy).185 358 - PublicationOpen AccessRecent seismicity of the «Acque Albule» travertine basin(2002)
; ; ; ; ; ;Gasparini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Di Maro, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Pagliuca, N. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Pirro, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Marchetti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; The seismic period which occurred in a portion of Guidonia Montecelio and Tivoli territory, two towns situated about twenty kilometres NE of Rome, affected four areas with a high density of population: Guidonia, Collefiorito, Villalba and Bagni di Tivoli. Even though the events had a very low magnitude (less than 3.0), local phenomena, like rumbles and strong vibrations of the ground, frightened inhabitants also because some months before (January 26, 2001) in a village named Marcellina situated a few kilometres away from Guidonia, a large sinkhole (600 m) had appeared without fore signals. The «Istituto Nazionale di Geofisica e Vulcanologia» (INGV) installed some digital stations that monitored the seismic phenomena. This paper has the aim to process all the information acquired during the period, both from the micro and macro seismic point of view, in order to explain the phenomenology that involved the area. The synergy of the two methodologies lead us to the conclusion that two different seismotectonic structures originated the events, one in an anti-apenninic direction, the other in a N-S direction.262 494