2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 1 AYSEGUL KUSMEZER AS A NATIONAL EARTHQUAKE MONITORING CENTER OF KOERI

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 2OBJECTIVES MONITORING OF SEISMIC EVENTS TO DETERMINE PARAMETERS OF EARTHQUAKES PROVIDING EARTHQUAKE STATISTICS DATA SHARING

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 3 The seismicity of Turkey and its surrounding area (1900 – 2008 ) (Red stars indicate the earthquakes of magnitude larger than 7.0)

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 4 THE DISTRIBUTION OF SEISMIC STATIONS

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 5 PROPERTIES OF THE BROADBAND STATIONS SeismometerDigitizerPeriod (s)AcqusitionCommunicationCount CMG-3TDGuralp360ScreamSatellite5 CMG-3TDGuralp120ScreamSatellite42 CMG-3SPDGuralp30ScreamSatellite34 CMG-6TDGuralp30ScreamSatellite2 CMG-T40Guralp30ScreamSatellite3 CMG-T40HRD24 (nmx)30NmxacqRadio Telemetry2 CMG-3TDGuralp360ScreamLeased Line1 CMG-3TDGuralp360SeedLinkInternet1 STS (GFZ)Quanterra300SeedLinkInternet2 Number of stations: 92

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 6 SATELLITE RADIO TELEMETRY LEASED LINE INTERNET COMMUNICATION TYPES GURALP/SCREAM SEED-LINK NANOMETRICS ACQUSITION SOFTWARE COMMUNICATION

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 7 DATA PROCESSING SOFTWARE Earhtworm Temporary Storage Converter Event Detection zSacWin EQ Processing Broadcasting Web Page SMS Answering Machine Fax CB-Radio

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 8 Basic working order of the KOERI anlysis software zSacWin Pull waveform data (from EW) Visualize Data and Pick Phases Locate event and calculate M CMT Solution

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 9 EARTHQUAKE PROCESSING RESULTS (software futures) EVENT LOCATION MAGNITUDE CALCULATIONS DURATION (Md) LOCAL(ML) SURFACE WAVE (Ms) MOMENT (Mw) FAULT PLANE SOLUTIONS FIRST MOTION MOMENT TENSOR INVERSION (CMT) PARAMETRIC DATA DISTRIBUTION WEB, SMS, , FAX, etc.

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 10 WAVEFORM DATA DISTRUBITION Our waveform data is open publicly. Anyone can connect to the login page using link

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 11 THE APPLICATION OF SEISAN SEISMIC PACKAGE AND ARISEN PROBLEMS TO ROUTINE OBSERVATIONS OR DATA PROCESSING IN KANDILLI OBSERVATORY KOSEOGLU KUSMEZER A. Bogazici University, Kandilli Observatory and Earthquake Research Institute, Istanbul, Turkey

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 12 GEOLOGIC AND TECTONIC SETTINGS The western part of the NAF zone across the Marmara Sea is shown in bathymetric and topographic map. Main active faults are plotted as bold lines. (X Le Pichon 2001)

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 13 SEISMICITY OF THE REGION Seismicity of the Marmara Region between Explosions are extracted from data.

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 14 SEISMIC STATIONS Green indicates Short Period and Black signs show Broadband Stations in Marmara Region

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 15 WHY SEISAN It includes most useful packages and analysis tools for seismologists, User friendly programs, Allows to archive data in parametric and/or waveform formats for easy retrieval and processing, Allows determination of different magnitude scaling systems, It is open source, therefore the package can be modified for any needs.

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 16 OUR OBJECTIVES FOR USING SEISAN Expected big earthquake in Marmara Region Magnitude saturation problem, Mo is influential especially earthquakes between 4.5<M<9.0 Enables to digitally analysis for big earthquakes Allows us to compare Moment Tensor Inversion solutions.

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 17 DATA PREPERATION PARAMETRIC DATA ISC ( ) + ISK – KOERI (2000-NOW) NORDIC FILE FORMAT

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 18 WAVEFORM DATA PREPERATION SAC DATA ASCII NORDIC (ASCII) NORDIC (BINARY) ISKSEI2 SEIASC zSacWin

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 19 CALIBRATION FILES IN GSE2 FORMAT CAL2 VANB BH E CMG-3T.67E / 9/ 6/12:30 PAZ2 1 V E Laplace transfor E E E E E E E E E E+00 DIG E T3727

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 20 WAVEFORM FILE It answers most useful programs for seismologists, User-handy programs, Allow to archive data both parametric and/or waveform one Determination of different magnitude values. Its source codes are open.

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 21 DISPLACEMENT

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 22 DATA QUALITY

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 23 SPECTRUM

2nd NEAMTWS Task Team Meeting 30 September-1 October 2008, Southampton, UK 24 OUR FUTURE PLANS Getting the spectrum automatically To compare : Converging grid search method – GA Reliable Magnitude determination