We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of Sediment Thickness upon Seismic Amplification in the Urban Area of Chiapa de Corzo, Chiapas, Mexico.
- Authors
Ceballo, Roberto Moreno; Herrera, Raúl González; Tenorio, Jorge Antonio Paz; Carboney, Jorge Alfredo Aguilar; Del Carpio Penagos, Carlos Uriel
- Abstract
Local variations in soil type and (to a lesser extent) topography determine seismic amplification, thereby establishing spatial patterns in the damages caused by large earthquakes, such as the two that occurred in Chiapas, Mexico on 6 October 1975 and 7 September 2017. The latter, of Mw 8.2, was the region's strongest during the last 100 years. Based upon damage patterns, an analysis was made to identify the effects of sediment thickness and type upon seismic amplification in the urban zone of Chiapa de Corzo, Chiapas. Salgado et al., (2004) had shown that the fundamental periods of soil vibration in the city vary from0.14 s to0.39 s. From those periods, and using the model presented in Newmark and Rosenbleuth (1976), with an average shear-wave velocity of 150 m/s, the variation of the sediment thicknesses that cause site effects in the area was determined. The thicknesses ranged between 7.12 and 14.6 m. Finally, through the use of a map prepared with GIS software, a spatial correlation was made with the historical earthquake damage recorded within the city.
- Subjects
MEXICO; CITIES &; towns; EARTHQUAKE resistant design; SOIL vibration; SEISMOGRAMS; SEDIMENTS; GEOGRAPHIC information system software; TOPOGRAPHY; EARTHQUAKE damage
- Publication
Earth Sciences Research Journal, 2019, Vol 23, Issue 2, p111
- ISSN
1794-6190
- Publication type
Article
- DOI
10.15446/esrj.v23n2.72623