| Title: | The European Fault-Source Model 2020 (EFSM20) : geologic input data for the European Seismic Hazard Model 2020 |
|---|
| Authors: | ID Basili, Roberto (Author)
ID Danciu, Laurentiu (Author)
ID Beauval, Céline (Author)
ID Sesetyan, Karin (Author)
ID Vilanova, Susana (Author)
ID Adamia, Shota (Author)
ID Atanackov, Jure (Author)
ID Jamšek Rupnik, Petra (Author)
ID Šket Motnikar, Barbara (Author)
ID Zupančič, Polona (Author) |
|---|
| Files: |  PDF - Presentation file, download (5,40 MB)
MD5: 06E86A3AAFB7579DE4FFAA1C4A0BBA4A
 URL - Research data, visit https://www.seismofaults.eu/efsm20
Description: The European Fault-Source Model 2020 (EFSM20) was initially designed as a product of the EU H2020 Project SERA (WP25-JRA3) to fulfill the requirements related to active faulting of the 2020 update of the European Seismic Hazard Model (ESHM20) following the probabilistic framework established for the 2013 European Seismic Hazard Model (ESHM13). EFSM20 is now part of the portfolio of the EFEHR services.
|
|---|
| Language: | English |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: |  GeoZS - Geological Survey of Slovenia
|
|---|
| Abstract: | Earthquake hazard analyses rely on seismogenic source models. These are designed in various fashions, such as point sources or area sources, but the most effective is the three-dimensional representation of geological faults. We here refer to such models as fault sources. This study presents the European Fault-Source Model 2020 (EFSM20), which was one of the primary input datasets of the recently released European Seismic Hazard Model 2020. The EFSM20 compilation was entirely based on reusable data from existing active fault regional compilations that were first blended and harmonized and then augmented by a set of derived parameters. These additional parameters were devised to enable users to formulate earthquake rate forecasts based on a seismic-moment balancing approach. EFSM20 considers two main categories of seismogenic faults: crustal faults and subduction systems, which include the subduction interface and intraslab faults. The compiled dataset covers an area from the Mid-Atlantic Ridge to the Caucasus and from northern Africa to Iceland. It includes 1248 crustal faults spanning a total length of ∼95 100 km and four subduction systems, namely the Gibraltar, Calabrian, Hellenic, and Cyprus arcs, for a total length of ∼2120 km. The model focuses on an area encompassing a buffer of 300 km around all European countries (except for Overseas Countries and Territories) and a maximum of 300 km depth for the subducting slabs. All the parameters required to develop a seismic source model for earthquake hazard analysis were determined for crustal faults and subduction systems. A statistical distribution of relevant seismotectonic parameters, such as faulting mechanisms, slip rates, moment rates, and prospective maximum magnitudes, is presented and discussed to address unsettled points in view of future updates and improvements. The dataset, identified by the DOI https://doi.org/10.13127/efsm20 (Basili et al., 2022), is distributed as machine-readable files using open standards (Open Geospatial Consortium). |
|---|
| Keywords: | earthquakes, hazard, European Fault-Source Model 2020 (EFSM20), Europe |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Publication date: | 19.11.2024 |
|---|
| Year of publishing: | 2024 |
|---|
| Number of pages: | str. 3945-3976 |
|---|
| Numbering: | Vol. 24, issue 11 |
|---|
| PID: | 20.500.12556/DiRROS-20903  |
|---|
| UDC: | 550.3 |
|---|
| ISSN on article: | 1684-9981 |
|---|
| DOI: | 10.5194/nhess-24-3945-2024 |
|---|
| COBISS.SI-ID: | 216121347 |
|---|
| Note: |
|
|---|
| Publication date in DiRROS: | 08.04.2025 |
|---|
| Views: | 626 |
|---|
| Downloads: | 316 |
|---|
| Metadata: |    |
|---|
|
:
|
Copy citation |
|---|
| | | | Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
