Istituto Nazionale di Oceanografia e di Geofisica Sperimentale

between Elba Island and Monte Argentario promontory, was performed to reappraise the Tuscan shelf tectonic evolution. Despite the almost flat geometry of the seafloor, seismic profiles show a corrugated morphology of the pre-neogenic deformed acoustic basement, organized in structural highs and narrow, mostly N-S and NNW-SSE basins. We identified an intimate relationship between the thrust-related structural highs and the position of the basins, principally located at the forelimb and backlimb of major antiforms, a legacy of a primarily Miocene compressional stage. During the middle Miocene, the Tyrrhenian Sea opening set up, and the extensional front migrated from west to east, progressively activating and deactivating the observed high-angle faults, blandly controlling the sedimentation within the basins. After the late Messinian, a regional collapse stage led to the deepening and widening of the basins. A progressive deactivation of all the normal faults is recorded from the lower Pliocene. After the Late Pliocene/early Pleistocene, the area turned into a passive and widespread sinking stage without any frank tectonic activity. Results show that regional thrusts shaped the main architecture of the Tuscan Shelf shallow crust, while the neogenic depocenters started to develop as thrust-top basins along the flanks of the inherited antiforms. Intriguingly and partially in contrast with previous works, no evidence of lowangle normal fault was observed. We propose an innovative model that poses new questions on the crustal-scale mechanisms responsible for Tyrrhenian extensional process-related features, also establishing a new and unique starting point for fully unraveling the tectonic evolution of this portion of central Italy's offshore domain.

The earthquake of 7 June 1925, which occurred in south-western Colombia, is one of the most important intraplate seismic events in the region. This earthquake caused damage at several localities along the Cauca valley. The distribution of the intensity data points reveals a trend line in the SW-NE direction, corresponding to the Andean mountain range, which coincides with the strike of the main geological faults existing in the SW of the country. In this work, earthquake parameters are computed from macroseismic data. The moment magnitude obtained is 6.6 ± 0.2. The epicentre is located at the coordinates 3.29° N and 76.91° W, at approximately 50 km SW from the town of Cali.

Empirical relationships between macroseismic intensity and different recorded ground motion parameters (GMP) are developed for the Italian territory in the framework of the project for the update of the national seismic hazard model (MPS19). The relationships are derived from a dataset of GMPs, e.g. peak ground acceleration (PGA) and peak ground velocity (PGV) from ITACA 2.3 (Luzi et al., 2017; Lanzano et al., 2018), and macroseismic intensities from DBMI15 (Locati et al., 2016). In order to obtain the most complete dataset of available macroseismic intensity data, a series of publications with the results of macroseismic surveys on recent earthquakes in Central Italy (Galli et al., 2016) not yet included in DBMI15 are also considered. The final dataset is being developed correlating strong motion stations and macroseismic intensity observations generally within 6 km from each other. The adopted functional form is non-linear and relates the logarithm of GMP and macroseismic intensity

An Italian macroseismic intensity attenuation model has been calibrated as function of Mw and distance from of 16.261 MDPs (subset of DBMI15, the Italian Macroseismic Database), that are related to 118 post900 earthquakes (subset of CPTI15, the Parametric Catalogue of Italian Earthquakes), after trends and residuals analysis. The intensity (I) attenuation function is calibrated as a Log-Linear model of epicentral distance (x in km) and a linear model of Mw: I=1.8125 - 0.0038551*R-2.6096*LogR+1.4206Mw with R=(x 2 +(9.87) 2 ) 0.5 The standard deviation is s=0.75.

Which are the trends that are transforming research management and how do research organizations respond to these changes? What are the available services to support research during EC projects’ life-cycles? Are there research information systems in use and to which extent are they integrated? The paper is structured as follows: a survey conducted over a sample of universities and research centers in Italy is presented in section 2. Section 3 describes significant case studies. Section 4 illustrates mobility figures and trends in EU funded projects. Section 5 concludes with considerations about trends and suggestions for improvement.

Recent developments in paleomagnetism and environmental magnetism provide new tools for the detailed correlation of climatically induced magnetic mineralogy changes in sedimentary sequences. Studies of these changes contribute to the reconstruction of climate history for the glacial^interglacial cycles of the Late Pleistocene and to the delineation of the range of natural variability for global climate during the past hundred thousands years. Here we show that sharp coercivity minima observed in fine-grained sediments from the continental rise of the western Antarctic Peninsula correlate to the major rapid cooling events of the northern Atlantic (Heinrich layers). We interpret such an environmental magnetic signal in terms of variations in deep sea diagenetic processes of sulfide formation, which reflect changes in the input of detrital organic matter controlled by sea-ice extent. With the inherent uncertainties in age controls, the sedimentary paleoclimatic markers of the two hemispheres are almost contemporaneous, but interhemispheric time lags or leads of the order of 1-2 kyr (such as those recently reported from the Greenland and Antarctic ice cores) are also compatible with the data.