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EnglishThe seismic to geodetic moment ratio (Mo/MG) related to seven magma intrusion episodes, occurring at Mt. Etna volcano between 1981 and 2008, are considered. The lateral eruptions show a moment ratio of 0.04–0.06; meaning that only about 5% of the stress energy accumulated with ground deformation was released by earthquakes. Significantly higher values instead characterized vertical (0.25–0.50) and non-eruptive (0.17) dike intrusions. This paper proposes a simple relationship, in order to estimate, during the early phases of an eruption, the intruding magma volumes by the cumulative seismic moment (of the ongoing seismicity) and elapsed time.
| Titolo: | Seismic vs. geodetic moments at Mt. Etna volcano: a tool for a rapid understanding the eruptive behaviour? |
| Autori interni: | GRESTA, Stefano (Corresponding) |
| Data di pubblicazione: | 2018 |
| Rivista: | |
| Handle: | http://hdl.handle.net/20.500.11769/364652 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 2018_JVGR_Moments_Etna.pdf | Versione Editoriale (PDF) | Administrator |
http://hdl.handle.net/20.500.11769/364652
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