Seismic hazard in the Po Plain and the 2012 Emilia earthquakes
<p>The Emilia earthquakes of May 20, 2012 (Ml 5.9, INGV; Mw 6.11, http://www.bo.ingv.it/RCMT/) and May 29, 2012 (Ml 5.8, INGV; Mw 5.96, http://www.bo.ingv.it/RCMT/) struck an area that in the national reference seismic hazard model [MPS04; http://zonesismiche.mi.ingv.it, and Stucchi et al. 201...
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2012-10-01
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| Series: | Annals of Geophysics |
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| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6158 |
| _version_ | 1818291752216297472 |
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| author | Carlo Meletti Vera D'Amico Gabriele Ameri Andrea Rovida Massimiliano Stucchi |
| author_facet | Carlo Meletti Vera D'Amico Gabriele Ameri Andrea Rovida Massimiliano Stucchi |
| author_sort | Carlo Meletti |
| collection | DOAJ |
| description | <p>The Emilia earthquakes of May 20, 2012 (Ml 5.9, INGV; Mw 6.11, http://www.bo.ingv.it/RCMT/) and May 29, 2012 (Ml 5.8, INGV; Mw 5.96, http://www.bo.ingv.it/RCMT/) struck an area that in the national reference seismic hazard model [MPS04; http://zonesismiche.mi.ingv.it, and Stucchi et al. 2011] is characterized by expected horizontal peak ground acceleration (PGA) with a 10% probability of exceedance in 50 years that ranges between 0.10 g and 0.15 g (Figure 1), which is a medium level of seismic hazard in Italy. The strong impact of the earthquakes on a region that is not included among the most hazardous areas of Italy, and the ground motion data recorded by accelerometric networks, have given the impression to the population and the media that the current seismic hazard map is not correct, and thus needs to be updated. Since the MPS04 seismic hazard model was adopted by the current Italian building code [Norme Tecniche per le Costruzioni 2008, hereafter termed NTC08; http://www.cslp.it/cslp/] as the basis to define seismic action (the design spectra), any modification to the seismic hazard model would also affect the building code. The aim of this paper is to briefly present the data that support the seismic hazard model in the area, and to perform some comparisons between recorded ground motion with seismic hazard estimates and design spectra. All of the comparisons presented in this study are for the horizontal components only, as the Italian hazard model did not perform any estimates for the vertical component. […]</p><br /> |
| first_indexed | 2024-12-13T02:49:03Z |
| format | Article |
| id | doaj.art-789d1ed6dbf6407b95377e7b2f910001 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-13T02:49:03Z |
| publishDate | 2012-10-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-789d1ed6dbf6407b95377e7b2f9100012022-12-22T00:02:07ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2012-10-0155410.4401/ag-61585775Seismic hazard in the Po Plain and the 2012 Emilia earthquakesCarlo Meletti0Vera D'Amico1Gabriele Ameri2Andrea Rovida3Massimiliano Stucchi4Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano/Pavia, MilanoIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano/Pavia, MilanoIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano/Pavia, MilanoIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano/Pavia, MilanoIstituto Nazionale di Geofisica e Vulcanologia, Sezione di Milano/Pavia, Milano<p>The Emilia earthquakes of May 20, 2012 (Ml 5.9, INGV; Mw 6.11, http://www.bo.ingv.it/RCMT/) and May 29, 2012 (Ml 5.8, INGV; Mw 5.96, http://www.bo.ingv.it/RCMT/) struck an area that in the national reference seismic hazard model [MPS04; http://zonesismiche.mi.ingv.it, and Stucchi et al. 2011] is characterized by expected horizontal peak ground acceleration (PGA) with a 10% probability of exceedance in 50 years that ranges between 0.10 g and 0.15 g (Figure 1), which is a medium level of seismic hazard in Italy. The strong impact of the earthquakes on a region that is not included among the most hazardous areas of Italy, and the ground motion data recorded by accelerometric networks, have given the impression to the population and the media that the current seismic hazard map is not correct, and thus needs to be updated. Since the MPS04 seismic hazard model was adopted by the current Italian building code [Norme Tecniche per le Costruzioni 2008, hereafter termed NTC08; http://www.cslp.it/cslp/] as the basis to define seismic action (the design spectra), any modification to the seismic hazard model would also affect the building code. The aim of this paper is to briefly present the data that support the seismic hazard model in the area, and to perform some comparisons between recorded ground motion with seismic hazard estimates and design spectra. All of the comparisons presented in this study are for the horizontal components only, as the Italian hazard model did not perform any estimates for the vertical component. […]</p><br />http://www.annalsofgeophysics.eu/index.php/annals/article/view/61582012 Emilia earthquakesSeismic hazardGround-motion recordingsDesign code spectra |
| spellingShingle | Carlo Meletti Vera D'Amico Gabriele Ameri Andrea Rovida Massimiliano Stucchi Seismic hazard in the Po Plain and the 2012 Emilia earthquakes Annals of Geophysics 2012 Emilia earthquakes Seismic hazard Ground-motion recordings Design code spectra |
| title | Seismic hazard in the Po Plain and the 2012 Emilia earthquakes |
| title_full | Seismic hazard in the Po Plain and the 2012 Emilia earthquakes |
| title_fullStr | Seismic hazard in the Po Plain and the 2012 Emilia earthquakes |
| title_full_unstemmed | Seismic hazard in the Po Plain and the 2012 Emilia earthquakes |
| title_short | Seismic hazard in the Po Plain and the 2012 Emilia earthquakes |
| title_sort | seismic hazard in the po plain and the 2012 emilia earthquakes |
| topic | 2012 Emilia earthquakes Seismic hazard Ground-motion recordings Design code spectra |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6158 |
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