2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 1

AYSEGUL KUSMEZER

AS A NATIONAL EARTHQUAKE MONITORING AS A NATIONAL EARTHQUAKE MONITORING CENTER OF KOERICENTER OF KOERI

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 2

OBJECTIVESOBJECTIVES

MONITORING OF SEISMIC EVENTSMONITORING OF SEISMIC EVENTS

TO DETERMINE PARAMETERS OF TO DETERMINE PARAMETERS OF

EARTHQUAKESEARTHQUAKES

PROVIDING EARPROVIDING EARTTHQUAKE STATISTICSHQUAKE STATISTICS

DATA DATA SHARINGSHARING

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 4

THE DISTRIBUTION OF SEISMIC STATIONSTHE DISTRIBUTION OF SEISMIC STATIONS

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 5

PROPERTIES OF THE BROADBAND STATIONS

Seismometer

DigitizerPeriod (s)

AcqusitionCommunication

Count

CMG-3TD Guralp 360 Scream Satellite 5

CMG-3TD Guralp 120 Scream Satellite 42

CMG-3SPD Guralp 30 Scream Satellite 34

CMG-6TD Guralp 30 Scream Satellite 2

CMG-T40 Guralp 30 Scream Satellite 3

CMG-T40HRD24 (nmx)

30 NmxacqRadio Telemetry

2

CMG-3TD Guralp 360 Scream Leased Line 1

CMG-3TD Guralp 360 SeedLink Internet 1

STS (GFZ) Quanterra 300 SeedLink Internet 2

Number of stations: 92

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 6

•SATELLITE

•RADIO TELEMETRY

•LEASED LINE

•INTERNET

COMMUNICATION TYPES

•GURALP/SCREAM

•SEED-LINK

•NANOMETRICS

ACQUSITION SOFTWARE

COMMUNICATIONCOMMUNICATION

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 7

DATA PROCESSINGDATA PROCESSING

SOFTWARE

Earhtworm •Temporary Storage•Converter•Event Detection

zSacWin •EQ Processing•Broadcasting•Web Page•SMS•Answering Machine•e-Mail•Fax•CB-Radio

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 8

Basic working order of the KOERI anlysis software zSacWinBasic working order of the KOERI anlysis software zSacWin

Pull waveform data (from EW)Visualize Data and Pick PhasesLocate event and calculate MCMT Solution

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 9

EARTHQUAKE PROCESSING RESULTS (software futures)EARTHQUAKE PROCESSING RESULTS (software futures)

EVENT LOCATIONEVENT LOCATION

MAGNITUDE CALCULATIONSMAGNITUDE CALCULATIONSDURATION (Md)

LOCAL(ML)

SURFACE WAVE (Ms)

MOMENT (Mw)

FAULT PLANE SOLUTIONSFAULT PLANE SOLUTIONSFIRST MOTION

MOMENT TENSOR INVERSION (CMT)

PARAMETRIC DATA DISTRIBUTIONPARAMETRIC DATA DISTRIBUTIONWEB, SMS, eMAIL, FAX, etc.

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 10

WAVEFORM DATA DISTRUBITIONWAVEFORM DATA DISTRUBITION

Our waveform data is open publicly. Anyone can connect to the login page using http://barbar.koeri.boun.edu.tr/sismo/zKDRS/login.asp link

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 13

SEISMICITY OF THE REGION

Seismicity of the Marmara Region between 2000-2007. Explosions are extracted from data.

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 14

SEISMIC STATIONS

Green indicates Short Period and Black signs show Broadband Stations in Marmara Region

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 17

DATA PREPERATION

PARAMETRIC DATA

ISC (1964-2000) + ISK – KOERI (2000-NOW)

NORDIC FILE FORMAT

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 18

WAVEFORM DATA PREPERATION

SAC DATA

ASCII

NORDIC (ASCII) NORDIC (BINARY)

ISKSEI2 SEIASC

zSacWin

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 19

CALIBRATION FILES IN GSE2 FORMAT

CAL2 VANB BH E CMG-3T .67E-01 1. 50.00000 2001/ 9/ 6/12:30PAZ2 1 V .43414900E+02 4 4 Laplace transfor -.12315040E-01 .12315040E-01 -.12315040E-01 -.12315040E-01 -.50265480E+03 .18849550E+03 -.50265480E+03 -.18849550E+03 .00000000E+00 .00000000E+00 .00000000E+00 .00000000E+00 .00000000E+00 .00000000E+00 .00000000E+00 .00000000E+00DIG2 2 .79051380E+06 50.00000 T3727

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, 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 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 21

DISPLACEMENT

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 22

DATA QUALITY

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 23

SPECTRUM

2nd 2nd NEAMTWSNEAMTWS Task Team Meeting Task Team Meeting 30 September-1 October 200830 September-1 October 2008, Southampton, UK, Southampton, UK 24

OUR FUTURE PLANS

Getting the spectrum automatically

To compare : Converging grid search method – GA

Reliable Magnitude determination