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Session: Empirical Modeling of Site Effects [Poster]

Type: Poster

Date: 10/12/2023

Time: 07:00 AM

Room: Stanley Park Ballroom

Site Database for the Strong Motion Stations of NCREE in Taiwan

The site database for the free-field TSMIP (Taiwan Strong Motion Instrumentation Program) has been renewed by Kuo et al. (2017). The database is generally applied to seismology and earthquake engineering studies in Taiwan. However, the National Center for Research on Earthquake Engineering (NCREE) also operates two strong motion networks all over Taiwan Island. They are the Seismic Array of NCREE in Taiwan (SANTA; http://santa.ncree.org) and NCREE Earthquake Early Warning System (NCREE EEWS). The SANTA is a multipurpose seismograph network with 37 seismograph stations to support the research both on seismology and earthquake engineering. Most SANTA stations consist of a strong-motion accelerometer and a broadband seismometer installed at the same site. The NCREE EEWS contains about 100 strong-motion stations installed in schools around Taiwan to provide nearby schools with on-site earthquake early warning service. Because the two networks also provide high-quality real-time strong motion records for analyzing the ground motion characteristics of earthquakes in Taiwan, it is essential to construct the site database for the stations of the two networks. This study collected the historical earthquake and the microtremor records of the stations to estimate the site parameters, including the V_s30, Z_1.0, κ₀, and F₀, by various analyses. The estimated site parameters are compared and discussed with that of the TSMIP to evaluate the site characteristics of Taiwan. It is proved that the comprehensive site parameters of the TSMIP and NCREE stations would be reliable for the studies of strong motion prediction and simulation, and site effect evaluation, etc in Taiwan.

Presenting Author: Che-Min Lin

Additional Authors