Publication Date:
2017-04-04
Description:
Data of local seismicity recorded in the Etna area during the time span 2005-2011 have been selected for
sharing. Basically they are of three types. First, raw continuous signals from permanent digital stations,
equipped with three-component broad band sensors 40s period, for the most part. The sample rate of the
signals is 100 Hz. Taking into account criteria such as: signal quality, availability of at least 3 year of data
for each station, and sufficient azimuthal coverage of the Etnean volcanic area, we obtained a network of
about twenty stations. We also provide an earthquake catalogue, obtained from off-line analysis of the digital
seismograms daily performed by expert personnel at Osservatorio Etneo (INGV). The data are in ASCII
format, and concern parametric information (latitude, longitude, depth, magnitude, etc.) about the hypocenter
of ca 800 earthquakes, which occurred in the area of Mount Etna between 2005 and 2011. This catalogue
reports shocks with magnitude greater than or equal to 2.0 and error threshold not greater than fixed values
(e.g., horizontal and vertical hypocentral errors less than or equal to 2.0 km, RMS travel-time residual less
than or equal to 0.35s, etc.). The third type of data is the RMS amplitude value of the continuous background
seismic signal. These values are calculated by an automatic tool which processes the on-line signal from
remote seismic stations. The amplitude data are calculated both in the whole unfiltered continuous signal,
and in frequency bands 1 Hz wide, between 0.5 and 15 Hz. The format of data is ASCII. For treatment and
characterization of each type of data, appropriate metadata, concerning station position, instrumental and
processing specifications and any other useful information, have been considered.
Description:
Published
Description:
Nicolosi (Catania, Italy)
Description:
4IT. Banche dati
Description:
open
Keywords:
Etna
;
Seismological data
;
05. General::05.02. Data dissemination::05.02.02. Seismological data
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
Poster session
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