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Natural Hazards

, Volume 24, Issue 2, pp 133–146 | Cite as

The Tsunami of August 17, 1999 in Izmit Bay, Turkey

  • Y. Altinok
  • S. Tinti
  • B. Alpar
  • A. C. Yalçiner
  • Ş Ersoy
  • E. Bortolucci
  • A. Armigliato
Article

Abstract

The Kocaeli 1999 Earthquake with an Mw = 7.4 caused major hazards throughout the NW of Turkey from Tekirdag to Bolu. Historical data indicates that some of the earthquakes around Izmit Bay have caused tsunamis. In this study, tsunami research for the Kocaeli 1999 Earthquake has been made also taking into consideration historical data. In this research more than about 70 data at 35 localities have been used to determine the tsunami evidences in the bay. Coastal observations indicated runups which were ranging from 1 to 2.5 m along the shores. However, the wave runups are more complex along the south coast due to the presence of coastal landslides (Değirmendere, Halidere, Ulasli, Karamürsel) and subsided areas (Kavakli to Yeniköy) along the shore. West of Yalova, evidence of tsunami rapidly diminished. In addition, possible tectonic mechanism has been determined by using 33 single-channel high-resolution digital seismic reflection profiles which were acquired following the Kocaeli 1999 Earthquake. As a result it has been determined that the Kocaeli Earthquake has created tsunami in Izmit Bay.

Tsunami Izmit Bay Marmara Sea Coastal Landslides Slumps 

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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Y. Altinok
    • 1
  • S. Tinti
    • 2
  • B. Alpar
    • 3
  • A. C. Yalçiner
    • 4
  • Ş Ersoy
    • 1
  • E. Bortolucci
    • 2
  • A. Armigliato
    • 5
  1. 1.Engineering FacultyUniversity of IstanbulTurkey
  2. 2.Department of PhysicsUniversity of BolognaItaly
  3. 3.Institute of Marine Sciences and ManagementUniversity of IstanbulTurkey
  4. 4.Department of Civil EngineeringMiddle East Technical UniversityAnkaraTurkey
  5. 5.DIP.TE.RISUniversity of GenovaItaly

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