Database of Active Faults in Slovenia: Compiling a New Active Fault Database at the Junction Between the Alps, the Dinarides and the Pannonian Basin Tectonic Domains
| Autor: | Bogomir Celarc, Jure Atanackov, Petra Jamšek Rupnik, Blaž Milanič, Miloš Bavec, Jernej Jež, Matevž Novak, Vanja Kastelic, Anže Markelj |
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| Rok vydání: | 2021 |
| Předmět: |
Eastern Alps
010504 meteorology & atmospheric sciences Mass movement Science Active fault Fault (geology) 010502 geochemistry & geophysics computer.software_genre 01 natural sciences Dinarides active faults 0105 earth and related environmental sciences geography geography.geographical_feature_category Database seismic hazard Tectonics Seismic hazard Denudation geologic data input Data quality Geological survey General Earth and Planetary Sciences computer Geology Southern Alps |
| Zdroj: | Frontiers in Earth Science, Vol 9 (2021) |
| ISSN: | 2296-6463 |
| DOI: | 10.3389/feart.2021.604388 |
| Popis: | We present the compilation of a new database of active faults in Slovenia, aiming at introducing geological data for the first time as input for a new national seismic hazard model. The area at the junction of the Alps, the Dinarides, and the Pannonian Basin is moderately seismically active. About a dozen Mw > 5.5 earthquakes have occurred across the national territory in the last millennium, four of which in the instrumental era. The relative paucity of major earthquakes and low to moderate fault slip rates necessitate the use of geologic input for a more representative assessment of seismic hazard. Active fault identification is complicated by complex regional structural setting due to overprinting of different tectonic phases. Additionally, overall high rates of erosion, denudation and slope mass movement processes with rates up to several orders of magnitude larger than fault slip rates obscure the surface definition of faults and traces of activity, making fault parametrization difficult. The presented database includes active, probably active and potentially active faults with trace lengths >5 km, systematically compiled and cataloged from a vast and highly heterogeneous dataset. Input data was mined from published papers, reports, studies, maps, unpublished reports and data from the Geological Survey of Slovenia archives and dedicated studies. All faults in the database are fully parametrized with spatial, geometric, kinematic and activity data with parameter descriptors including data origin and data quality for full traceability of input data. The input dataset was compiled through an extended questionnaire and a set of criteria into a homogenous database. The final database includes 96 faults with 240 segments and is optimized for maximum compatibility with other current maps of active faults at national and EU levels. It is by far the most detailed and advanced map of active faults in Slovenia. |
| Databáze: | OpenAIRE |
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