| Autor: |
Sharon, Matty, Sagy, Amir, Kurzon, Ittai, Marco, Shmuel, Rosensaft, Marcelo |
| Předmět: |
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| Zdroj: |
Natural Hazards & Earth System Sciences Discussions; 2019, p1-47, 47p |
| Abstrakt: |
We present a methodology for mapping faults that constitute a potential hazard to structures, with an emphasis on special facilities such as dams and nuclear power plants. The methodology categorises faults by hierarchical seismo-tectonic criteria, which are designed according to the degree of certainty for recent activity and the accessibility of the information within a given region. First, the instrumental seismicity is statistically processed to obtain the gridded seismicity of the earthquake density and the seismic moment density parameters. Their spatial distribution reveals the zones of the seismic sources, within the examined period. We combine these results with geodetic slip rates, historical earthquake data, geological maps and other sources to define and categorise faults that are likely to generate significant earthquakes (M ≥ 6.0). Their mapping is fundamental for seismo-tectonic modelling and for PSHA analyses. In addition, for surface rupture hazard, we create a database and a map of capable faults, by developing criteria according to the regional stratigraphy and the seismotectonic configuration. The relationship between seismicity slip dynamics and fault activity through time is an intrinsic result of our analysis that allows revealing the tectonic evolution of a given region. The presented methodology expands the ability to differentiate between subgroups for planning or maintenance of different constructions or for research aims, and can be applied in other regions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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