Attenuation of Strong Ground Motion in Peninsular India
2004; Seismological Society of America; Volume: 75; Issue: 4 Linguagem: Inglês
10.1785/gssrl.75.4.530
ISSN1938-2057
AutoresRN Iyengar, S. T. G. Raghu Kanth,
Tópico(s)Seismic Waves and Analysis
ResumoOther| July 01, 2004 Attenuation of Strong Ground Motion in Peninsular India R. N. Iyengar; R. N. Iyengar Department of Civil Engineering Indian Institute of Science Bangalore 560012 India rni@civil.iisc.ernet.in Search for other works by this author on: GSW Google Scholar S. T. G. Raghu Kanth S. T. G. Raghu Kanth Department of Civil Engineering Indian Institute of Science Bangalore 560012 India rni@civil.iisc.ernet.in Search for other works by this author on: GSW Google Scholar Author and Article Information R. N. Iyengar Department of Civil Engineering Indian Institute of Science Bangalore 560012 India rni@civil.iisc.ernet.in S. T. G. Raghu Kanth Department of Civil Engineering Indian Institute of Science Bangalore 560012 India rni@civil.iisc.ernet.in Publisher: Seismological Society of America First Online: 09 Mar 2017 Online ISSN: 1938-2057 Print ISSN: 0895-0695 © 2004 by the Seismological Society of America Seismological Research Letters (2004) 75 (4): 530–540. https://doi.org/10.1785/gssrl.75.4.530 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation R. N. Iyengar, S. T. G. Raghu Kanth; Attenuation of Strong Ground Motion in Peninsular India. Seismological Research Letters 2004;; 75 (4): 530–540. doi: https://doi.org/10.1785/gssrl.75.4.530 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySeismological Research Letters Search Advanced Search Abstract Earthquakes in India occur in the plate-boundary region of the Himalayas as well as in the intraplate region of peninsular India (PI). Devastating events have occurred in PI in the recent past, which is a warning about the possibility of such earthquakes in the future. But very limited recorded data are available about ground motion in PI for engineers to rely upon. The present paper, after a review of available data, develops an attenuation relationship based on a statistically simulated seismological model. The proposed equation for peak ground acceleration (PGA), under bed rock conditions, is of the form \[\ \mathrm{ln}(\mathrm{PGA{/}g})=c_{1}+c_{2}(M-6)+c_{3}(M-6)^{2}-\mathrm{ln}(R)-c_{4}R+\mathrm{ln}{\varepsilon},\] (1) with c1 = 1.6858, c2 = 0.9241, c3 = -0.0760, c4 = 0.0057, and σ(lnϵ) = 0.4648. Correction factors for other site conditions are also computed. In the absence of a robust database of strong-motion records, seismological modeling is a rational alternative until sufficient instrumental records become available in PI. It is observed that attenuation of strong motion in PI is similar to that in other intraplate regions of the world. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
Referência(s)