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Geophysical characterization of the Chilean seismological stations; first results

F. Leyton, A. Leopold, G. Hurtado, C. Pasten, S. Ruiz, G. Montalva and E. Saez
Geophysical characterization of the Chilean seismological stations; first results
Seismological Research Letters (March 2018) 89 (2A): 519-525


The Chilean Seismological Network has been rapidly growing in recent years, going from a few dozens stations working before 2010 to nearly a 100 installed all over the territory. Even more, nearly 300 strong-motion stations from the Accelerographic National Network have recently complemented this network, mainly deployed in large cities, at a variety of site conditions. All of these stations are currently providing useful information of Chilean earthquakes and are expected to record moderate-to-large events. However, the lack of appropriate site characterization sets an important limit to its usefulness. In this work, we present the geophysical characterization of 163 stations, the first results of larger effort to complete the characterization at all sites, based on array measurements of microtremors and horizontal-to-vertical spectral ratios. This information will help improve our understanding of the dynamic behavior of soils during earthquakes, providing relevant information for seismic design and seismic codes.

ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: 89
Serial Issue: 2A
Title: Geophysical characterization of the Chilean seismological stations; first results
Affiliation: Universidad de Chile, Centro Sismologico Nacional, Santiago, Chile
Pages: 519-525
Published: 201803
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
References: 36
Accession Number: 2018-052326
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch map
S56°00'00" - S17°45'00", W76°00'00" - W67°00'00"
Secondary Affiliation: Universidad de Concepcion Casilla, CHL, ChilePontificia Universidad Catolica de Chile, CHL, Chile
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2018
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