Trial of a site specific seismic hazard evaluation based on seismic observation records

2014 ◽  
pp. 2145-2150
Author(s):  
S Nakamura
Keyword(s):  
Seismic Hazard ◽  
Hazard Evaluation ◽  
Site Specific ◽  
Seismic Observation ◽  
A Site ◽  
Seismic Hazard Evaluation

Site-Specific Ground Motion Studies for a Deep Soil Site Near Ahmedabad, Gujarat

2018 ◽  
pp. 31-65
Author(s):  
A. Boominathan ◽  
Krishna Kumar ◽  
R. Vijaya
Keyword(s):  
Seismic Hazard ◽  
Hazard Analysis ◽  
Response Analysis ◽  
Ground Response ◽  
Ground Response Analysis ◽  
Site Specific ◽  
Linear Approach ◽  
Specific Analysis ◽  
Soil Site ◽  
A Site

Design ground motions are usually developed by one of two approaches: by performing site-specific analyses or from provisions of building codes. Although contemporary codes consider the site effects to an extent, they provide more conservative estimates. Hence, site-specific analysis, which involves both the seismic hazard analysis and ground response analysis, is a preferred approach to obtain design ground motions. This chapter presents a site-specific analysis for a site near Ahmedabad, Gujarat. The seismic hazard analysis was carried out by DSHA approach. The site is predominantly characterized by deep stiff sandy clay deposits. Extensive shear wave velocity measurement is used for site classification and ground response analysis. The ground response analysis was carried out by using two approaches: the equivalent linear approach using SHAKE2000 and the non-linear approach using FLAC2D. The deep-stiff-soil site is found to amplify the ground motion. The response from nonlinear analysis is found to be considerably higher than those obtained from the equivalent linear approach.

Seismic Hazard Evaluation Using Markov Chains: Application to the Japan Area

2005 ◽  
Vol 162 (6-7) ◽  
pp. 1347-1366 ◽  
Author(s):  
F. Alejandro Nava ◽  
Claudia Herrera ◽  
José Frez ◽  
Ewa Glowacka
Keyword(s):  
Markov Chains ◽  
Seismic Hazard ◽  
Hazard Evaluation ◽  
Seismic Hazard Evaluation

Updated seismotectonic zoning scheme of Metropolitan France, with reference to geologic and seismotectonic data

2013 ◽  
Vol 184 (3) ◽  
pp. 225-259 ◽  
Author(s):  
Stéphane Baize ◽  
Edward Marc Cushing ◽  
Francis Lemeille ◽  
Hervé Jomard
Keyword(s):  
Seismic Hazard ◽  
Hazard Assessment ◽  
Active Faults ◽  
Seismic Hazard Assessment ◽  
Tectonic Activity ◽  
Hazard Evaluation ◽  
Boundary Location ◽  
Seismotectonic Zones ◽  
Seismic Hazard Evaluation ◽  
Surface Geology

Abstract This work presents the seismotectonic zoning scheme of Metropolitan France developed by the IRSN (French Institute for Radioprotection and Nuclear Safety) within the framework of its seismic hazard assessment activities. It is the outcome of many years of work following the publication of the “seismotectonic atlas” in 1993 [Grellet et al., 1993]. This scheme supports the assessment of seismic hazard by IRSN. It takes into account the most recent data concerning the deep and surface geology, as well as those related to seismotectonics and tectonic activity. It finally includes 67 surface seismotectonic zones (STZ), as well as a catalogue of 74 faults or structures (named hereafter “potential active faults”) for which indications of Neogene to Quaternary displacement can be inferred. The description of the zoning scheme comes along with an estimation of the uncertainty on the boundary location between adjacent STZ. We also qualitatively determine a “relevance order” for each limit, so as to illustrate their reliability to separate regions of different seismogenic potential. Also, we attributed to the faults an indication whose purpose is to reflect the recent character of their activity, and thus their seismotectonic potential. This assessment of uncertainties was undertaken to better integrate the zoning scheme in the general approach, which arises from recent studies, namely the propagation of the uncertainties in seismic hazard evaluation, whether deterministic or probabilistic.

scholarly journals Fault segmentation, paleostress and paleoseismic investigation in the Dodoma Area, Tanzania: implications for seismic hazard evaluation

Afrika Focus ◽  
2008 ◽  
Vol 21 (2) ◽  
pp. 118-119
Author(s):  
Athanas Simon Macheyeki ◽  
Marc De Batist ◽  
Abdulkarim Mruma ◽  
Damien Deluaux
Keyword(s):  
Seismic Hazard ◽  
Hazard Evaluation ◽  
Fault Segmentation ◽  
Seismic Hazard Evaluation
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