Wilkinson, M. and Bonforte, A. and Jones, R. and Wadsworth, F. and Roberts, Gerald P. and Guglielmino, F. (2023) The performance of differential point positioning using low-cost GNSS in comparison to DInSAR for monitoring coseismic displacement of the Provenzana–Pernicana fault system (Mt. Etna, 2018 December eruptive phase). Geophysical Journal International 234 (2), pp. 1012-1023. ISSN 0956-540X.
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Wilkinson et al. 2023 Etna eruption and fault slip with GNSS.pdf - Published Version of Record Available under License Creative Commons Attribution. Download (17MB) | Preview |
Abstract
Mt. Etna is a perfect laboratory for testing new approaches and new technologies in a very active geodynamic environment. It offers, in fact, the opportunity for measuring active crustal deformation, related to volcanic activity as well as to seismic faulting on its flanks. In this work, a network of low-cost/low-power Global Navigation Satellite System stations has been installed and tested on Mt. Etna, across a very active fault, the Provenzana–Pernicana system, cutting its north-eastern flank. During the test period, a lateral eruption occurred (starting on 2018 December 24), with a forceful dyke intrusion that stressed all the flanks of the volcano, soliciting all the main faults dissecting the edifice. Also the Provenzana–Pernicana fault system, where this network was recording, was activated during the dyke intrusion, producing a significant seismic swarm. The low-cost/low-power network data analysis allowed the fault slip during the intrusion to be clearly traced in time and space at all the stations lying on the hangingwall mobile block of the fault. All the stations lying south of the fault trace showed an eastward displacement, in very good agreement with the usual kinematics of the fault and the temporal duration of the M3.5 December 24 earthquake, related to the seaward dislocation of the eastern mobile flank of the volcano, promoted and accelerated by dyke emplacement on the upper part of the edifice.
Metadata
| Item Type: | Article |
|---|---|
| Keyword(s) / Subject(s): | Geodetic instrumentation, Satellite geodesy, Time-series analysis |
| School: | Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences |
| Research Centres and Institutes: | Earth and Planetary Sciences, Institute of |
| Depositing User: | Gerald Roberts |
| Date Deposited: | 11 Jan 2024 13:13 |
| Last Modified: | 11 Jan 2024 13:35 |
| URI: | https://eprints.bbk.ac.uk/id/eprint/52786 |
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