Magnitude-dependent variance of peak ground acceleration

Autor:	Robert R. Youngs, Norman A. Abrahamson, F. I. Makdisi, K. Sadigh
Rok vydání:	1995
Předmět:	Data set Peak ground acceleration Acceleration Geophysics Standard error Horizontal and vertical Geochemistry and Petrology Magnitude (mathematics) Variance (accounting) Earthquake magnitude Geodesy Seismology Geology
Zdroj:	Bulletin of the Seismological Society of America. 85:1161-1176
ISSN:	1943-3573 0037-1106
Popis:	We examine the variability of peak horizontal and vertical accelerations of the large California strong-motion data set for the time period 1957 to 1991 and find a statistically significant dependence of the standard error on earthquake magnitude. Specifically, the standard error decreases with increasing magnitude. The analysis was conducted using a rigorous methodology that examines both earthquake to earthquake (inter-event) variability and within earthquake (intra-event) variability. The magnitude dependence is stronger for inter-event variability than intra-event variability, and stronger for horizontal peak acceleration than for vertical peak acceleration. The data from the recent Landers, Big Bear, and Northridge earthquakes are consistent with these results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eda522f71c90a0e81b737918a27d0423 https://doi.org/10.1785/bssa0850041161 Zobrazit plný text záznamu