Karlıova Üçlü Ekleminde Koda Dalga Analizi

Öz

Bu çalışmada, Erzincan-Karlıova-Bingöl üçgeni arasında kalan bölgede oluşan 70 adet deprem kullanılarak Koda dalga analizi yapılmıştır. 2006–2008 yıllarında oluşmuş depremlerin B.Ü. KRDEA a ait Bingöl (BINT) istasyonu kayıtları kullanılmıştır. Depremlerin episantır uzaklıkları 15-70 km magnitüdleri 3.1-4.8 ve derinlikleri 5-20 km arasında değişmektedir. Tek saçılma metodu kullanılan çalışmada, 30sn kesme zamanı ile veriler merkez frekansı 1.5, 3, 6, 9, 12 ve 18 Hz olan Butterworth filtresi ile süzgeçlenmiş, sismogramların koda genliklerinin eğimlerinden koda kalite faktörü Qc(f)=45f0.76 olarak hesaplanmıştır. Düşük Qo değeri ve frekansa fazla bağımlılık bölgenin yüksek tektonik aktivitesini karakterize etmektedir.

Coda Wave Analysis in Vicinity of Karliova Triple Junction

Abstract

In the study, we analyzed 70 local earthquakes occurred in vicinity of Karliova Triple Junction. The data were recorded at the network operated by B.U. Kandilli Observatory and Earthquake Research Institute (KOERI) during 2006-2008 at Bingöl station (BINT). The earthquake had epicenter distances between 15 and 70 km, local magnitudes ranging from 3.1 to 4.8 and their focal depths ranging from 5 and 20km. The single scattering method was applied. The quality factor (Qc) calculated at frequencies 1.5, 1.5, 3, 6, 9, 12 and 18 Hz Butterworth filter and a lapse time 30sec. The mean Qc value calculated was Qc(f)=45f0.76. The relatively low Qo and high frequency dependency agree with the values of a region characterized by a high tectonic activity.

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