Unravelling the links between seismo-acoustic signals and eruptive parameters: Etna lava fountain case study.

ABSTRACT: Deriving eruption source parameters from geophysical data is critical for volcano hazard mitigation, yet remains a challenging task in most volcanoes worldwide. In this work, we explored the temporal relationship between geophysical signals and eruptive parameters measured during six explosive episodes from the New South-East Crater of Mt. Etna (Italy). The quadratic reduced seismic velocity and pressure were calculated to track the temporal variation of volcanic elastic radiation, and the lava fountain height was estimated by thermal camera image processing. The temporal relationships between these geophysical and eruptive time series were studied. In particular, the first considered lava fountain exhibited a "clockwise hysteresis" pattern: higher seismic amplitude with respect to the fou

SUBMITTER: Sciotto M 

PROVIDER: S-EPMC6848099 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature