A5055438083- Seismology and Earthquake Studies
- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- Seismic Performance and Analysis
- earthquake and tectonic studies
- Structural Health Monitoring Techniques
- Anomaly Detection Techniques and Applications
University of Trieste
2022-2024
Istituto Nazionale di Geofisica e Vulcanologia
2024
A strong motion monitoring network records data that provide an excellent way to study how source, path, and site effects influence the ground motion, specifically in near-source area. Such are essential for updating seismic hazard maps consequently building codes earthquake-resistant design. This paper aims present Italian Strong Motion Network (RAN), describing its current status, employment, further developments. It has 648 stations is result of a fruitful co-operation between government,...
Small earthquakes are frequently modeled as point sources or ruptures with a simple circular geometry. While these representations sufficiently accurate within specific range of frequencies, the actual rupture processes inherently more complex.Earthquake waveforms represent convolution source and propagation effects, requiring their separation to enable independent analysis each component. To investigate earthquake source, isolating time function is crucial. Kinematic models commonly...
The seismic motion can be modified by local geological conditions, which cause changes in the amplitude, frequency, and duration of earthquake’s waves. For this reason, alongside an assessment a large scale basic hazard, it is primary importance to evaluate takes into account geomorphological features that characterize studied area. Sediments soft soils, through resonance phenomena, topography, focus effects, collaborate modify waves, usually causing amplification. In Italy, these...
Second-degree seismic moments provide a simple description of the spatiotemporal extent earthquake source. Finite source attributes such as rupture length, width, duration, velocity, and propagation direction can be estimated by computing second-degree without need for predefined model. This is achieved analyzing properties apparent time functions (ASTFs) obtained from signals recorded at different stations after eliminating instrument responses path effects. In this study, to define limits...
Rupture processes of large earthquakes have been studied by seismic waveform analysis and directivity effects also observed in moderate and small earthquakes. This effect leads to azimuthal spectral variations ground motion that can be used estimate the fault plane orientation or a predominant rupture propagation direction particular region during seismic sequence. For moderate-to-strong events, at low frequencies result potentially destructive pulses with motions,...