ingv:https://data.ingv.it/metadata/iso19115/1120.xml eng utf8 dataset Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati pointOfContact 2025-05-28 Linee Guida RNDT 2.0 WGS84 Earthquake Locations in the Etna Volcano using a 3D velocity model during 2005-2024 (EtnaEQ3D_2005-2024) EtnaEQ3D_2005-2024 2025 publication 2025 creation ingv:https://doi.org/10.13127/etnasc/etnaeq3d_2005-2024 Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://www.ingv.it owner Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati resourceProvider Istituto Nazionale di Geofisica e Vulcanologia - INGV ufficiogestionedati@ingv.it http://istituto.ingv.it/it/ufficio-gestione-dati publisher Barberi, Graziella Istituto Nazionale di Geofisica e Vulcanologia (INGV) graziella.barberi@ingv.it https://orcid.org/0000-0002-8273-0458 ORCID author Firetto Carlino, Marco Istituto Nazionale di Geofisica e Vulcanologia (INGV) marco.firettocarlino@ingv.it https://orcid.org/0000-0002-4651-9639 ORCID author Scarfì, Luciano Istituto Nazionale di Geofisica e Vulcanologia (INGV) luciano.scarfi@ingv.it https://orcid.org/0000-0002-5995-3880 ORCID author Digital table ingv:https://doi.org/10.13127/etnasc/etnaeq3d_2005-2024 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. completed Barberi, Graziella Istituto Nazionale di Geofisica e Vulcanologia - INGV graziella.barberi@ingv.it https://orcid.org/0000-0002-8273-0458 ORCID pointOfContact notPlanned https://data.ingv.it/dataset/cover/1120.jpg thumbnail image/jpeg EU open data Local Spatial scope 2019-05-22 publication Etna Volcano Earthquake locations theme otherRestrictions Creative Commons Attribution 4.0 International (CC BY 4.0) otherRestrictions no limitations to public access http://publications.europa.eu/resource/authority/licence/CC_BY unclassified vector 1000 eng utf8 Etna Etna 14.70 15.30 37.50 37.90 2005-01-01 2024-12-31 Istituto Nazionale di Geofisica e Vulcanologia (INGV) ufficiogestionedati@ingv.it http://www.ingv.it distributor https://oedatarep.ct.ingv.it/records/r1w26-m5j92 WWW:LINK-1.0-http--link other homepage accessPoint dataset m 1 Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Publication This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true 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.