Investigation of strong motion records of the May 1, 2003 Bingöl earthquake (Mw-6.4) 1 Mayis 2003 Bingöl depremi (Mw=6.4) kuvvetli hareket kayitlarinin incelenmesi


YALÇINKAYA E.

Yerbilimleri, sa.28, ss.99-108, 2003 (Diğer Kurumların Hakemli Dergileri) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: Konu: 28
  • Basım Tarihi: 2003
  • Dergi Adı: Yerbilimleri
  • Sayfa Sayıları: ss.99-108

Özet

The Bingöl earthquake of May 1, 2003 (Mw=6.4) occurred at 03:27 local time, with the epicenter about 15 km north of the city center of Bingöl. The earthquake resulted in 177 deaths, 530 injures, collapse to 308 buildings, and damage to more than 2000 buildings. The Bingöl earthquake was caused by the right-lateral strike slip faulting, lying in the NW-SE direction approximately normal to the East Anatolian Fault Zone. The earthquake was recorded by 4 strong motion instruments located in the region. The nearest station to the epicenter is Bingöl (BNG) station which is located 8 km far away from the KB-GD fault plane. The maximum acceleration was measured 546 cm/sec2 on the NS component of the BNG station. The peak accelerations recorded at the distance stations are below the empirical predictions, because of probably high attenuation at the region. Records of the BNG station located at southeastern tip of the fault indicate the forward directivity effects. On the time records, S waves clipped during 0.5 sec may be point out to the passing of rupture front from the station. The estimated rupture velocity is 2.5 km/sec. The spectral accelerations are only higher at low periods than the amplitudes of design spectra in the current Turkish code.