ATTENUATION OF CODA WAVES IN WESTERN ANATOLIA
PHYSICS OF THE EARTH AND PLANETARY INTERIORS, cilt.87, ss.155-165, 1994 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 87
- Basım Tarihi: 1994
- Doi Numarası: 10.1016/0031-9201(94)90028-0
- Dergi Adı: PHYSICS OF THE EARTH AND PLANETARY INTERIORS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.155-165
- Dokuz Eylül Üniversitesi Adresli: Hayır
Özet
By analyzing the decay of coda wave amplitude, we have determined coda Q,Q(c), in Western Anatolia (Turkey). Using the single isotropic scattering model, we analyzed 116 earthquakes which registered at the Gebze station by using five narrow frequency bands centered at 1.5, 3, 6, 8 and 10 Hz. Coda Q values were obtained using different lapse times, between 30 and 190 s, in steps of 10 s. Coda Q(c) for Western Anatolia depends on frequency and lapse time. For a lapse time of 30 s, the frequency dependence of Q(c) is Q(c)(f) = 50.7f1.01 and for a lapse time of 190 s it is Q(c)(f) = 183.2f0.76. In this region, the exponential value of the Q(c) frequency dependence is practically constant, between 0.7 and 1.0. The obtained coda Q(c) values were compared with those estimated in other regions. The coda Q(c) values for lapse times between 60 and 100 s for Western Anatolia and Southern Spain are practically the same, indicating similar coda wave attenuation patterns in both regions of the Mediterranean Basin.