Location performance of seismic networks by a numerical simulation: Application to BU-KOERI (Turkey)

Abstract

BU-KRDAE sismik istasyonlarına uygulanan SNES (Seismic Network Evaluation through Simulation) yöntemi, sismik ağın, yerel ve bölgesel depremlerin yerlerinin belirlenmesindeki performansını, sismik istasyonların gürültü seviyelerini ve lokasyon işleminde kullanılan kabuk hız modelinin uygunluğunu değerlendirmektedir. Ayrıca, bu yöntem, istasyonlar tarafından yeterli ölçüde kapsanamayan depremsel alanların belirlenmesini sağlar.

In this study, SNES method is applied to the BU-KOERI (Boğaziçi University - Kandilli Observatory Earthquake Research Institute) seismic network to evaluate and quantify its performance for locating local and regional seismicity. This application has allowed to identify the background noise levels of the KOERI seismic stations and to evaluate the goodness of the velocity model used in the location routine. Furthermore, the SNES method has allowed identifying some seismogenic areas on the national territory that are currently not enough covered instrumentally. The upgrading of the network in these areas could be optimized using the SNES technique.