Conveners
Sardinia Geology, Long and Short term measurements
- Gilberto Saccorotti (Istituto Nazionale di Geofisica e Vulcanologia)
- Luca Naticchioni (INFN Roma)
The geological characterization preceding the construction of a large-scale underground structure, such as the Einstein Telescope (ET), is a mandatory step of civil engineering studies. The ET Italian candidate site is located in the Variscan basement of Sardinia because of its geodynamic quietness, very low seismicity and anthropogenic seismic noise. The ET layout is currently projected as an...
In the framework of the Project Einstein Telescope Sos Enattos, we report the preliminary results of the active-source seismic surveys performed by the INGV team in sites P2 (labelled as Onani) and P3 (labelled as Bitti) in July and September 2021. The main goal of these surveys was the reconstruction of the shallow subsurface velocity structure in correspondence of the two drilling sites....
During the last two years, Sos Enattos has been the subject of an extensive seismic characterization campaign with the installation of several permanent and temporary seismic stations. In this presentation, I will give an overview of this long-term characterization campaign highlighting the main results that have been obtained so far, including the very low noise levels that have been measured...
In this talk I present an update of the long term measurement campaign
going on in Sardinia, for the environmental noise characterization of the
ET candidate vertexes. I will mainly focus on the magnetic noise measured
both in surface and underground of the Sos Enattos site, as well as in P2
(Bitti). A comparison of the Schumann resonances behavior in both sites
and a projection of their...
The region surrounding the dismissed mine of Sos Enattos (Sardinia, Italy) is the Italian candidate site for hosting Einstein Telescope (ET), the next-generation gravitational wave (GW) detector. The site that will host ET must fulfill stringent requirements on seismic disturbances, particularly in the bandwidth 1-10 Hz, where the seismic noise is expected to be dominated by sources of...
In this talk we discuss the preparation of two boreholes at the corners, named P2 and P3, of the ET triangle in Sardinia. The boreholes are designed to host broadband seismometers dedicated to a long-term seismic monitoring at about 250m underground. We also report the principal aspects of the geophysical logs of the boreholes and the sensor installation downhole. Finally, we present the...
