The Etnean instrumental catalogue collects local earthquakes recorded by the stations belonging to the Permanent Seismic Network, operated by Istituto Nazionale di Geofisica e Vulcanologia-Osservatorio Etneo (INGV-OE), from January 1, 2020. The earthquakes contained within the catalogue are localized by a staff of experienced analysts, working in the seismological division of the INGV-OE. In order to make available to the scientific community a reliable product, the hypocentral localizations satisfy high scientific criteria, which are agreed upon and shared by the staff. The hypocentral parameters of earthquakes are obtained by using several purpose-written softwares, developed by an expert team of the INGV-OE, and the computer program Hypoellipse 2.0 (Lahr, 1989). The crustal velocity model used is the one by Hirn et al. (1991). Each earthquake, and the provided parameters, are stored within a database consisting of a plurality of fields, which can be interrogated, according to the user requirements. The optimal coverage and the density of the seismic network, as well as the high quality of the collected data, ensure a good detection performance, and an accurate hypocentral parameters estimation for the Etna volcanic area. Moreover, the permanent seismic network configuration, also integrated by the stations belonging to the seismic mobile network, allows the determination of the focal mechanisms with the standard FPFIT algorithm (Reasenberg and Oppenheimer, 1985).

The map shows the events located in the last ten days.


The seismic parameters and any other information reported in this website and in all related pages of the "Istituto Nazionale di Geofisica e Vulcanologia" are devoted to qualified users. The parameters reported are the best estimates based on the available data and are constantly revised and subject to change, according to new acquired data. Even if all the parameters have been checked by analysts, no warranty, implicit or explicit, is attached to the data. INGV provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data. Every risk due to the improper use of data or the use of inaccurate information is assumed by the user.


Information and data contained in this web-site is provided by the staff of the INGV-CT. All the rights of intellectual property related to these information and data are owned by the Institute and are under the protection of the present laws. Please reference these data as:

Permission to copy or reproduce parts of the web content is granted subject to full acknowledgement of the source.

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Distributed with License Attribution 4.0 International (CC BY 4.0).
Istituto Nazionale di Geofisica e Vulcanologia, sezione di Catania, Osservatorio Etneo.

Mt. Etna Revised Seismic Catalog from 2020 (EtnaRSC)
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