MARMARA-DM - Seismometer dataset
Guralp CMG-40T 3 component broadband seismometer (30 s-50 Hz)
Stephen Monna (INGV)
Abstract: This digital database comprises seismological data recorded continuously during the MARMARA-DM 1 project by a 3 component broadband seismometer. The sensor was installed on a GEOSTAR-class deep-sea multidisciplinary observatory, deployed in the Marmara Sea at a depth of 167 m. The seismometer is installed in a dedicated vessel integrated in a separate structure connected to the observatory via a special mechanical release. To guarantee a good coupling with the sea bottom, the structure is disconnected just after the observatory touch-down and kept linked to the frame by a slack rope (Favali et al., 2006). The sensor was connected to a 24 bit digitizer, and its time reference came from an external rubidium clock connected to the digitizer.
Purpose: The major scientific goal of the SN-4 experiment is to contribute to the knowledge on the relationship between gas seepage and seismic signals. To observe a large variety of seismic signals we use a broadband seismometer. The deployment site is on the sea prosecution of the active North Anatolian fault,which has been the source of many destructive earthquakes, and presents a continuous seismic activity and methane degassing.
Quality of data:
|period||October 05, 2009 - March 15, 2010|
|coordinates||40.729087 N, 29.398833 E (WGS84)|
|sampling rate||100 Hz|
|platform type||Fixed benthic node|
|license||Creative Commons Attribution 4.0 International License (CC BY 4.0)|
|science keywords||SOLID EARTH > SEISMOLOGY > EARTHQUAKE DYNAMICS
SOLID EARTH > SEISMOLOGY > EARTHQUAKE OCCURRENCES
|xml||ATOM - DIF - KML - OAI DublinCore - PANGAEA DublinCore - RDF - SensorML|
|dissemination||GENESI-DEC - NASA GCMD - EMSO Data Portal - ESONET Data Portal - ESONET Sensor|