GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 1.1 GNGTS 2024 4. Conclusions We present further data concerning the estmaton of the detecton capacity of earthquakes by a hydraulic pressure device (HPD) (boreholes S13 and S14 in De Luca et al., 2018, Fig. 1) placed very near to UL, by comparing earthquakes detected by the INGV seismic staton GIGS, located in UL. The detecton capability of the HPD was compared to the currently published bibliography (e.g., Galli, 2000; Manga and Wang, 2015). In the period May 2015 and December 2022, the HPD recognized 130 earthquakes compared to the 974 analysed. The results confrm the sensitvity of the HPD higher than the known values and recorded so far on a global scale (Manga and Wang, 2015). Considering (i) the hydrogeological versus seismotectonic importance of GSA, (ii) the hydrological sensitvity to earthquakes of the HPD, which is placed in the GSA core, so that in a unique and strategic locaton, and (iii) the encouraging and signifcant results, the hydrological versus seismic monitoring of the HPD is contnuing. References Adinolf Falcone R., Carucci V., Falgiani A., Maneta M., Parisse B., Petta M., Rusi S., Spizzico M., Tallini M.; 2012: Changes on groundwater fow and hydrochemistry of the Gran Sasso carbonate aquifer due to the 2009 L'Aquila earthquake . Ital. J. Geosci. (Boll. Soc. Geol. It.), 131, 459-474, doi: 10.3301/IJG.2011.34. Belf J., Beverini N., Bosi F., Carelli G., Cuccato D., De Luca, G., et al.; (2017): Deep underground rotaton measurements: Gingerino ring laser gyroscope in Gran Sasso . Rev. Sci. Instrum. 88:034502, doi: 10.1063/1.4977051. De Luca G., Di Carlo G., Tallini M.; 2016: Hydraulic pressure variatons of groundwater in the Gran Sasso underground laboratory during the Amatrice earthquake of August 24, 2016 . Annals of Geophysics 59, Fast Track 5, doi: 10.4401/AG-7200. De Luca G., Di Carlo G., Tallini M.; 2018: A record of changes in the Gran Sasso groundwater before, during and afer the 2016 Amatrice earthquake, central Italy . Scientfc Reports, G:15982, doi: 10.1038/s41598-018-34444-1. Di Virgilio, A.D.V. et al.; 2017: GINGER: A feasibility study . Eur. Phys. J. Plus, 132, 157, htps:// doi.org/10.1140/epjp/i2017-11452-6. Galli P.; (2000): New empirical relatonships between magnitude and distance for liquefacton . Tectonophysics, 324, 169–187, doi: 10.1016/S0040-1951(00)00118-9. Manga M., Wang C.-Y.; (2015): Earthquake Hydrology . In: Gerald Schubert (editor-in-chief), Treatse on Geophysics, 2 nd editon, Vol 4. Oxford: Elsevier, 305–328, htps://doi.org/10.1016/ B978-0-444-53802-4.00082-8. Petta, M., Tallini, M.; 2002: Idrodinamica soterranea del massiccio del Gran Sasso (Abruzzo): indagini idrologiche, idrogeologiche e idrochimiche (1994–2001) . Boll. Soc. Geol. It., 121, 343–363. Corresponding author: isayadomenico@live.it