Acknowledgements DANA (Dense Array for Northern Anatolia) is part of the Faultlab project, a collaborative effort by the University of Leeds, Bogaziçi University Kandilli Observatory and Earthquake Research Institute (BU-KOERI) and Sakarya University. Major funding was provided by the UK Natural Environment Research Council (NERC) under grant NE/I028017/1. Equipment was provided and supported by the NERC Geophysical Equipment Facility (SEIS-UK) Loan 947. This project is also supported by Bogaziçi ˘ University Scientific Research Projects (BAP) under grant 6922 and Turkish State Planning Organization (DPT) under the TAM project, number 2007K120610. The authors thank the Editor, two anonymous reviewers and A. Arda Özacar for their comments wh...