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GNDT 1 - Seismometer dataset


Instrument: Guralp CMG-1T 3 component broadband seismometer (360 s-50 Hz)
Investigator: Stephen Monna (INGV)
Project: GNDT-SN1
Observatory: NEMO-SN1

Abstract: This digital database comprises seismological data recorded during the GNDT 1 project by a 3 component broadband seismometer, together with a hydrophone. The sensor was installed on the GEOSTAR deep-sea multidisciplinary observatory, offshore of the Eastern coast of Sicily (Southern Italy) at a depth of 2071 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: This project's main objective was to establish the first node, off-shore eastern Sicily, of multiparameter seafloor observatories which include a seismometer. Long-term broad-band seismic measurements from this site is of great interest given its proximity to the Etna volcano (~ 50 km) and to offshore seismogenic structures where some of the most destructive earthquakes, some of which accompanied by tsunamis, have occurred in Italy.

Quality of data:

period October 09, 2002 - May 12, 2003
coordinates 37.442217 N, 15.393117 E (WGS84)
sampling rate 100 Hz
platform type Fixed benthic node
size -
files count 0
export formats miniSEED
license Creative Commons Attribution 4.0 International License (CC BY 4.0)
dataset progress TBD

xml ATOM - DIF - KML - OAI DublinCore - PANGAEA DublinCore - RDF - SensorML
dissemination GENESI-DEC - NASA GCMD - EMSO Data Portal - ESONET Data Portal - ESONET Sensor
moist identifier moist.emso.western_ionian_sea.gndt-sn1.2002.nemo-sn1.seismometer.27
oai identifier
uuid identifier urn:uuid:B4046AB7-6763-43C5-B4CB-B9988929D91F