2026-10-11T07:53:40Z https://oai.datacite.org/oai

doi:10.13127/etnasc/etnaeq3d_2005-2024 2025-05-28T09:28:48Z WNGN CRUI.INGV

2 CRUI.INGV 10.13127/ETNASC/ETNAEQ3D_2005-2024 Barberi, Graziella Graziella Barberi https://orcid.org/0000-0002-8273-0458 Istituto Nazionale di Geofisica e Vulcanologia (INGV) Firetto Carlino, Marco Marco Firetto Carlino https://orcid.org/0000-0002-4651-9639 Istituto Nazionale di Geofisica e Vulcanologia (INGV) Scarfì, Luciano Luciano Scarfì https://orcid.org/0000-0002-5995-3880 Istituto Nazionale di Geofisica e Vulcanologia (INGV) Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2025 Hypocentre parameters of earthquakes recorded in the Etna Volcano between 01 January 2005 to 31 December 2024 Etna Volcano Earthquake locations Barberi, Graziella Graziella Barberi https://orcid.org/0000-0002-8273-0458 Istituto Nazionale di Geofisica e Vulcanologia (INGV) Istituto Nazionale di Geofisica e Vulcanologia (INGV) https://ror.org/00qps9a02 2005-01-01/2024-12-31 2005-01-01/2024-12-31 2025 2025 2025 10.1038/s43247-022-00398-6 10.1029/2009gc002709 10.13127/etnasc/2000_2010 10.13127/etnasc/2011_2013 10.13127/etnasc/2014_2016 10.13127/etnasc/2017_2019 10.13127/etnasc/etnarsc2020 1.24 MB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Open Access Creative Commons Attribution 4.0 International This catalogue presents the seismicity recorded in the Etna volcano area by the INGV-OE seismic network between 01 January 2005 and 31 December 2024. During this period, local magnitudes (ML) ranged from 0.1 to 4.8. Events were selected with at least six observations, root-mean-square time residuals (RMS) ≤ 0.50 s at the stations, and horizontal (ERH) and vertical (ERZ) location uncertainties ≤ 5.0 km. Questo catalogo presenta la sismicità registrata nell’area del vulcano Etna dalla rete sismica dell’INGV-OE tra il 1° gennaio 2005 e il 31 dicembre 2024. In questo periodo, le magnitudo locali (ML) sono comprese tra 0.1 e 4.8. Gli eventi sono stati selezionati con almeno sei osservazioni, residui quadratici medi (RMS) ≤ 0.50 s alle stazioni, e incertezze di localizzazione orizzontali (ERH) e verticali (ERZ) ≤ 5.0 km. The earthquake dataset was relocated using the tomoDDPS algorithm (Zhang et al., 2009), applying a three-dimensional velocity model developed through the integration of both passive and active seismic data (Firetto Carlino et al., 2022), in order to enhance the precision of hypocentral determinations. Earthquakes' initial parameters were derived from Alparone et al. (2015, 2020a, 2020b, 2022) and Barberi et al. (2020). The tomoDDPS benefits from combining absolute travel times with differential arrival-time measurements between pairs of nearby seismic events, which follow nearly identical propagation paths to a common station. As these paths are essentially the same, any variation in arrival times can be reliably linked to the relative positions of the events in space. The application of 3D relocation led to a more defined clustering of seismicity and produced a reduction in travel-time residuals between observed and computed data by about 37%, with a mean residual of 0.014 seconds. The final hypocentral locations show horizontal and vertical uncertainties of less than 0.8 km. The hypocenters of 474 events were located above sea level, very close to the topographic surface. Since their depth could not be reliably constrained, we fixed them at the topographic elevation—which falls within the depth uncertainty range—and marked these in the notes field. The table (EtnaEQ3D_2005-2024) shows the origin time and the hypocentre parameters of locations. Specifically: ID= identification number; Date (day- month-year); Origin Time (hour, minute, second and cent); Lat = latitude north in degrees; Long = longitude east in degrees; Depth in km; ML= local magnitude; Notes=depth fixed at the topographic elevation. Etna Etna 14.7 15.3 37.5 37.9