1,721,093 research outputs found
Teachings from the Tohoku-Oki event: tsunami hazard scenarios along Japanese and Italian coasts
No full textThe Tohoku-Oki earthquake (M=9.0) has provided an unprecedented opportunity to utilize Japan’s monitoring networks (e.g., GPS, seismic and DART buoys) to gather data. The implications of the new observations, especially about the dynamical properties of tectonic faults, need to be further explored and integrated in sound physical models of earthquakes to go towards better quantification of the related hazards. The “scenario based” tsunami hazard assessment applications to selected areas of the Japanese and Italian coasts (i.e., Adriatic Sea) will be discusse
Seismic and tsunami hazard investigation in valparaiso in the framework of the project mar vasto “Manejo de riesgos en Valparaiso”
No full textGround motions scenario in the Catania area for a Magnitude 7.0 earthquake on the Hyblean fault
No full text
Scenario based assessment of seismic hazard: A must for the effective protection of historical buildings.
No full textEarthquake scenarios and seismic input for cultural heritage: applications to the cities of Rome and Florence
No full textFor historical buildings and monuments, i.e. when considering time intervals of about a million year (we do not want to loose cultural her- itage), the applicability of standard estimates of seismic hazard is really questionable. A viable alternative is represented by the use of the scenario earthquakes, characterized at least in terms of magnitude, distance and faulting style, also taking into account the complexity of the source rup- turing process. Scenario-based seismic hazard maps are purely based on geophysical and seismotectonic features of a region and take into account the occurrence frequency of earthquakes only for their classi cation into exceptional (catastrophic), rare (disastrous), sporadic (very strong), occa- sional (strong) and frequent. Therefore they may provide an upper bound for the ground motion levels to be expected for most regions of the world. The neo-deterministic approach naturally supplies realistic time series of ground motion, which represent also reliable estimates of ground displace- ment readily applicable to seismic isolation techniques, useful to preserve historical monuments and relevant man made structures. This methodology has been successfully applied to many urban areas worldwide for the pur- pose of seismic microzoning, to strategic buildings, lifelines and cultural heritage sites. We will discuss its application to the cities of Florence and, more extensively, Rome
The Alps and the deep revolution against standard plate tectonics: polarized plate tectonics.
No full textThe asymmetries between W-directed (e.g. Apennines) and E- or NE- directed (e.g. Alps) subduction zones are robust features of a polarized geodynamics and they can be ascribed to the generalized westward drift of the lithosphere relative to the underlying mantle
Recent developments in Europe for the definition of realistic seismic input for structures provided with innovative antiseismic systems
No full text- …
