monitoring and seismic characterization of archaeological sites and structures

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Seismogenesis in Central Apennines, Italy: an integrated analysis of minor earthquake sequences and structural data in the Amatrice-Campotosto area

We present a seismotectonic study of the Amatrice-Campotosto area (Central Italy) based on an integrated analysis of minor earthquake sequences, geological data and crustal rheology. The area has been affected by three small-magnitude seismic sequences: August 1992 (M=3.9), June 1994 (M=3.7) and October 1996 (M=4.0). The hypocentral locations and fault plane solutions of the 1996 sequence are based on original data; the seismological features of the 1992 and 1994 sequences are summarised from literature. The active WSWdipping Mt. Gorzano normal fault is interpreted as the common seismogenic structure for the three analysed sequences. The mean state of stress obtained by inversion of focal mechanisms (WSW-ENE-trending deviatoric tension) is comparable to that responsible for finite Quaternary displacement, showing that the stress field has not changed since the onset of extensional tectonics. Available morphotectonic data integrated with original structural data show that the Mt. Gorzano Fault extends for ~28 km along strike. The along-strike displacement profile is typical of an isolated fault, without significant internal segmentation. The strong evidence of late Quaternary activity in the southern part of the fault (with lower displacement gradient) is explained in this work in terms of displacement profile readjustment within a fault unable to grow further laterally. The depth distribution of seismicity and the crustal rheology yield a thickness of ~15 km for the brittle layer. An area of ~530 km2 is estimated for the entire Mt. Gorzano Fault surface. In historical times, the northern portion of the fault was probably activated during the 1639 Amatrice earthquake (I = X, M~ 6.3), but this is not the largest event we expect on the fault. We propose that a large earthquake might activate the entire 28 km long Mt. Gorzano Fault, with an expected Mmax up to 6.7

Les facteurs à petite échelle affectent la taille des populations du Mulot (Apodemus sylvaticus) dans une île méditerranéenne (Sardaigne)

La variation de la taille des populations de Mulot (Apodemus sylvaticus) a été étudiée le long de30 transects indépendants sur l’île de Sardaigne (Italie), avec un accent mis sur la relation entre la taille de la population et les variables environnementales (type de boisement, épaisseur de la litière, diversité et taille des arbres, nombre de souches, couverture du sol, couverture buissonnante, bois mort). Les études ont été conduites selon un protocole de capture-marquage-recapture à l’aide de pièges placés le long des transects et surveillés au printemps et en automne. Sept variables environnementales ont été confrontées aux estimations de taille de population sur chaque transect, estimations obtenues à partir de cinq modèles démographiques distincts pour populations fermées. Des différences inter-saisonnières significatives ont été observées dans le nombre de spécimens capturés (pic au printemps) mais, en dépit de variations considérables selon les transects, la taille des populations de Mulot ne différait pas de manière significative entre les types d’habitats forestiers. La taille des populations de l’espèce est apparue positivement influencée par (i) la couverture au sol, (ii) le nombre de souches, et (iii) le % d’Erica arborea ; à l’inverse elle est apparue négativement influencée par (a) la hauteur des buissons de Rubus ulmifolius et (b) par le % de Rubus ulmifolius. Les raisons de ces patterns sont envisagées et discutéesThe variation of population size of the Wood Mouse (Apodemus sylvaticus) was studied across 30 independent transects in Sardinia island (Italy), with emphasis on the relationships between population size and environmental variables (type of wood, litter depth, tree diversity, tree size, number of stumps, ground cover, shrub cover, dead wood). Studies were conducted through a capture-mark-recapture protocol with live traps placed along line transects, and surveyed in both spring and autumn. Seven environmental variables were contrasted to population size estimates in each transect, with estimates of population size being obtained from five distinct demography models for close populations. There were significant inter-seasonal differences in the number of captured specimens (peak in springtime), but the population size of the Wood Mouse, despite varying considerably by transect, did not differ significantly among types of forest habitats. Population size of this species was positively influenced by (i) ground cover, (ii) number of stumps, and (iii) % Erica arborea; conversely, it was negatively influenced by (a) height of Rubus ulmifolius bushes and (b) by % Rubus ulmifolius. The possible reasons behind these patterns were explored and discusse

CONFRONTO DEI PARAMETRI GEOTECNICI E GEOFISICI PRE E POST BLAST TEST PRESSO IL SITO SPERIMENTALE DI MIRABELLO (FE)

L'articolo presenta alcuni risultati preliminari derivanti dal primo esperimento di liquefazione indotta tramite blast test realizzato in Italia, presso Mirabello (FE), comune fortemente colpito da fenomeni di liquefazione durante la sequenza sismica verificatasi in Emilia-Romagna nel 2012. In particolare diverse indagini in sito con tecniche invasive e non invasive sono state eseguite prima e dopo le detonazioni per confrontare la variazione dei parametri geotecnici e geofisici nel tempo

seismic response of a deep continental basin including velocity inversion the sulmona intramontane basin central apennines italy

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Erratum: Lipase-catalyzed regioselective acylation of resorcin[4]arenes (Journal of Molecular Catalysis B: Enzymatic (2002) 16 (24-247) PII: S1381117701000686)

10Immobilized lipase from Mucor miehei (RML) catalyzed the regioselective acylation of the C-2 side-chain of the C-alkyl resorcin[4]arene tetra-alcohol 1 in the 1,2-alternate form in organic solvents using vinyl acetate as acylating reagent. The influence of reaction parameters and solvent choice were also studied. Docking simulations allowed the determination of the binding geometry of 1, revealing the importance of Trp88 residue in stabilizing the Michaelis–Menten complex between enzyme and substrate.reservedmixedBotta, Bruno; Zappia, Giovanni; Tafi, Andrea; Botta, Maurizio; Manetti, Fabrizio; Cernia, Enrico; Milana, Giuliana; Palocci, Cleofe; Soro, Simonetta; Delle Monache, GiulianoBotta, Bruno; Zappia, Giovanni; Tafi, Andrea; Botta, Maurizio; Manetti, Fabrizio; Cernia, Enrico; Milana, Giuliana; Palocci, Cleofe; Soro, Simonetta; Delle Monache, Giulian

insights into bedrock paleomorphology and linear dynamic soil properties of the cassino intermontane basin central italy

Abstract Seismic amplifications are dictated by the depth of the bedrock and the stratigraphy and dynamic properties of the soil deposits. Quantifying these properties, together with their uncertainty, is a necessary task to perform a reliable assessment of the seismic risk at an urban scale. In this paper, a multidisciplinary analysis is presented, where information of different nature is combined. Borehole logs, geophysical, geological and geotechnical surveys are interpreted with the aid of analytical, numerical and geostatistical techniques to characterise the complex shape of the bedrock and the linear dynamic properties of the sedimentary deposits filling the Cassino basin, a Quaternary intermontane basin located in central Italy. The regional and local seismic hazard is firstly identified with geological surveys that reveal an active seismogenic fault capable of producing earthquakes with estimated magnitudes up to 6.5. Boreholes reaching depths variable up to a maximum of 180 meters and microtremor measurements, revealing the sharp impedance contrast at the transition between the sedimentary/arenaceous bedrock and the soft Quaternary infilling, are combined to identify the depth of the bedrock and the linear dynamic properties of soil deposits. These are one of the key factors governing the propagation to the ground level of seismic waves, and their assessment represents the first step for the seismic hazard characterisation of the plain

Shallow subsurface geology and seismic microzonation in a deep continental basin. The Avezzano Town, Fucino basin (central Italy)

We present detailed geological investigations aimed at the reconstruction of the shallow subsurface geology, and associated local seismic hazard, of the Avezzano town in the Quaternary Fucino basin (central Apennines). This work shows a basic (Level 1) seismic microzonation (SM) of the Avezzano town, focusing the attention on geologic constraints. We also discuss some methodological procedures of SM. Level 1 SM involves a reconstruction of the subsurface geological model achieved by a multidisciplinary approach synthesized in two main thematic maps and geologic sections. The first map, containing essential geologic information, is formed by overlapping layers (geological units, litho-technical units, and geomorphological/structural features). The second map is a summary map, easily accessible to non-geologist earthquake scientists/technicians, which synthesizes surface geology, subsurface data and resonance frequencies into homogeneous microzones. The two maps are tools for land and urban planning. The Avezzano area provides a case study of shallow subsurface geology and site effects in a deep continental basin environment, and is of potential interest for similar geologic contexts worldwide. Within the investigated area, almost all the possible earthquake-induced effects can occur, such as (a) stratigraphic amplifications in a wide range of resonance frequencies (from 0.4 to > 10 Hz); (b) liquefaction; (c) coseismic surface faulting; (d) basin-edge effects; and (e) slope instability

Site characterization of station IV.LAV9 (LANUVIO) of Italian National Seismic Network

Final report illustrating array measurements performed at IV.LAV9 station of the Italian national seismic network. This report is part of the Project: DPC-INGV 2016 agreement All. B2 Task B: Seismic characterization of accelerometric sites