Kinematics of the Mw=7.2, 12 November 1999, Duzce, Turkey earthquake

Ayhan M., Burgmann R., McClusky S., Lenk O., Aktug B., Herece E., ...Daha Fazla

GEOPHYSICAL RESEARCH LETTERS, cilt.28, sa.2, ss.367-370, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 2
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1029/2000gl011851
  • Dergi Adı: GEOPHYSICAL RESEARCH LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.367-370
  • Ankara Üniversitesi Adresli: Hayır

Özet

The November 12, 1999 Duzce earthquake ruptured a similar to 40-km-long fault segment of the North Anatolian fault system immediately to the east of the August 17, 1999 Izmit rupture. We use displacements of 32 sites derived from GPS measurements immediately before and after the Duzce earthquake to estimate the geometry and slip distribution of the coseismic rupture. The similar to 51 degrees northward dipping rupture plane, the rake of the slip vector (average 3.76 +/- 0.04 m right-lateral, 0.76 +/- 0.04 m normal slip), and the slip distribution inferred from the GPS data are consistent with seismic observations and the distribution of surface offsets measured in the field. The geodetically determined moment magnitude is M-w = 7.2. The Duzce earthquake had the highest slip-to-rupture-length ratio of any historic earthquake along the North Anatolian fault. This is consistent with the Duzce earthquake being a part of a composite rupture with the preceding Izmit event.