Correlation between the Points of Different Seismic Intensity Scales

Aptikaev, F. F.; Erteleva, O. O.; Tokmulina, G. M.

doi:10.3103/s0747923921010035

Cited by 3 publications

(1 citation statement)

References 21 publications

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“…The average estimation of acceleration level on reverse fault was found to be 1.7 time higher than in the case of strike-slip faulting. Further in other studies close estimations were obtained (Aptikaev and Kopnichev, 1980;Campbell, 1981;1997;Boore et al, 1997;Sadigh et al, 1997;Youngs et al, 1997). In far-eld zone this effect was not observed.…”

Section: In Uence Of Faulting Typementioning

confidence: 60%

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Sharma

Baruah

Gogoi

2023

Preprint

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Understanding the behaviour of soil and site in highly seismically active Assam valley, Shillong-Mikir Hills Plateau and Eastern Himalayan Syntaxis of Northeastern India is important for seismic hazard assessment. Constrained by this tectonic interaction, we estimate the ground motion parameters of these tectonic domains through the inversion of 129 three component strong motion records of earthquakes with magnitude Mw>4.0 & Mw<6.0. Remarkably, parameters estimated at 9 different sites help to classify the region into four different site class subjected to magnitude and epicentral distance of the earthquake. Higher spectral acceleration observed at low period in Diphu, Nongstoin, Tezpur and Guwahati infer embedded site condition as rock subjected to removal of source and path effect. On the other, low spectral acceleration at high period in Kokrajhar, Golaghat, Goalpara and Nagaon indicate distinctly thick alluvial basin. Fourier spectrum width in Guwahati, Diphu, Nongstoin and Tezpur, within 2-10 Hz indicate the presence of compact & hard subsurface strata while the broad spectrum width of Kokrajhar, Golaghat, Boko, Nagaon and Goalpara within 0.5 – 10 Hz suggests presence of loose alluvium soil or soft sediments. Simultaneously, site specific response study on 11/08/2009, M5.6 Myanmar-Manipur Border earthquake indicate that high spectral acceleration is evolved due to thrust mechanism. This integrative approach comprising site specific fourier spectra, design response, influence of fault type and horizontal to vertical spectral amplitude ratios offer an unique method to characterize the site in various seismically active regions of the world.

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Section: In Uence Of Faulting Typementioning

confidence: 60%

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Sharma

Baruah

Gogoi

2023

Preprint

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Reappraisal of the 2012 magnitude (M _W ) 6.7 Negros Oriental (Philippines) earthquake intensity and ShakeMap generation by using ESI-2007 environmental effects

Naik,

Rimando,

Mittal

et al. 2024

Geomatics, Natural Hazards and Risk

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Analyzing the Temporal Variation in Macroseismic Intensity Rating Values and Predicting Macroseismic Intensity on the Tibetan Plateau

Liu,

Yu,

Xiao

2023

Bulletin of the Seismological Society of America

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China has relatively rich macroseismic isoseismal maps, which play an important role in seismic hazard analysis and the development of reliable earthquake loss models. The macroseismic intensity is assessed based on the Chinese Seismic Intensity Scale, which is constantly being revised as research progresses and the seismic defense capability is enhanced. To investigate whether intensity rating values show consistency across time in statistical significance, this study collected 543 isoseismal lines for 216 earthquakes on the Tibetan Plateau from 1960 to 2020. Taking intensity prediction equations (IPEs) as a reference, statistical tests of the residuals indicate that there is temporal variation in intensity rating values, which is inconsistent with the default assumption that intensity rating values are consistent for different time periods when developing IPEs. Therefore, we analyze the characteristics of intensity rating values by statistical tests and investigate the mechanism by which the temporal variation in intensity rating values affects IPEs by residual decomposition. The results show that despite the temporal variation in intensity rating values, they can still be used to develop IPEs, and that temporal variability can be reduced by adjustment. Finally, we obtain the regression process of IPEs based on the partially nonergodic assumption considering the temporal variation in intensity rating values, and perform a case study, using the Tibetan Plateau as an example.

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Correlation between the Points of Different Seismic Intensity Scales

Cited by 3 publications

References 21 publications

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Reappraisal of the 2012 magnitude (M _W ) 6.7 Negros Oriental (Philippines) earthquake intensity and ShakeMap generation by using ESI-2007 environmental effects

Analyzing the Temporal Variation in Macroseismic Intensity Rating Values and Predicting Macroseismic Intensity on the Tibetan Plateau

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Correlation between the Points of Different Seismic Intensity Scales

Cited by 3 publications

References 21 publications

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Scaling and Integration of site specific fourier spectra, response spectra, design response and ratios of H/V spectra of earthquakes in North-eastern India and vicinity : implication in seismic hazard assessment

Reappraisal of the 2012 magnitude (M W ) 6.7 Negros Oriental (Philippines) earthquake intensity and ShakeMap generation by using ESI-2007 environmental effects

Analyzing the Temporal Variation in Macroseismic Intensity Rating Values and Predicting Macroseismic Intensity on the Tibetan Plateau

Contact Info

Product

Resources

About

Reappraisal of the 2012 magnitude (M _W ) 6.7 Negros Oriental (Philippines) earthquake intensity and ShakeMap generation by using ESI-2007 environmental effects