Fabio Manta - Academia.edu (original) (raw)

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Papers by Fabio Manta

Research paper thumbnail of Volcano in the lab: An analogue investigation of bubble-driven surface displacement

This dataset contains all the data recorded during the analogue experiment run to simulate a volc... more This dataset contains all the data recorded during the analogue experiment run to simulate a volcanic elastic conduit and relative ground deformation associated to Strombolian activity. This dataset also contain the codes used to process the data.

Research paper thumbnail of GNSS TEC‐Based Detection and Analysis of Acoustic‐Gravity Waves From the 2012 Sumatra Double Earthquake Sequence

Journal of Geophysical Research, 2021

Research paper thumbnail of Correlation Between GNSS‐TEC and Eruption Magnitude Supports the Use of Ionospheric Sensing to Complement Volcanic Hazard Assessment

Journal of Geophysical Research: Solid Earth

Research paper thumbnail of Multivariate approaches to infer volcanic system parameters, timing, and size of explosive eruptions

Research paper thumbnail of Rapid identification of tsunamigenic earthquakes using GNSS ionospheric sounding

Scientific Reports

The largest tsunamis are generated by seafloor uplift resulting from rupture of offshore subducti... more The largest tsunamis are generated by seafloor uplift resulting from rupture of offshore subductionzone megathrusts. The rupture of the shallowest part of a megathrust often produces unexpected outsize tsunami relative to their seismic magnitude. These are so called 'tsunami earthquakes', which are difficult to identify rapidly using the current tsunami warning systems, even though, they produce some of the deadliest tsunami. We here introduce a new method to evaluate the tsunami risk by measuring ionospheric total electron content (TEC). We examine two M w 7.8 earthquakes (one is a tsunami earthquake and the other is not) generated in 2010 by the Sunda megathrust, offshore Sumatra, to demonstrate for the first time that observations of ionospheric sounding from Global Navigation Satellite System (GNSS) can be used to evaluate the tsunamigenic potential of earthquakes as early as 8 min after the mainshock.

Research paper thumbnail of New insight into a volcanic system: Analogue investigation of bubble‐driven deformation in an elastic conduit

Journal of Geophysical Research: Solid Earth

Analogue and numerical simulations have been widely used to describe the mechanisms of bubble and... more Analogue and numerical simulations have been widely used to describe the mechanisms of bubble and slug ascent during volcanic eruptions as well as their formation and explosion mechanisms. Nevertheless, little is known about the mechanical interaction between the fluid and the surrounding medium. In this work, we report the results from analogue experiments designed to show how deformation of the conduit walls induced by the rising slugs is related to the radiation and propagation of seismic and geodetic signals. For the first time, we investigate the dynamics of bubbles in an elastic conduit unveiling the relationship between slugs and crustal strain accumulation around the conduit. Moreover, we discuss the retroactive effects of the deformed conduit wall on the dynamics of a rising slug, particularly, how the flow is affected, and the eventual implications on the intensity of the eruption. Our results show that the combination of an elastic conduit with a large volume of gas may lead to the development of a new type of slug, here defined as a "super slug," characterized by tapering towards the tail and a much higher ascent velocity and inner pressure compared with ordinary slugs. This newly observed behavior could be linked to vigorous explosive events.

Research paper thumbnail of A Bayesian Approach to Infer Volcanic System Parameters, Timing, and Size of Strombolian Events From a Single Tilt Station

Journal of Geophysical Research: Solid Earth

Research paper thumbnail of Three-dimensional hydrogeological reconstruction based on geological depositional model: A case study from the coastal plain of Arborea (Sardinia, Italy)

Engineering Geology, 2016

Research paper thumbnail of Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review

Journal of Volcanology and Geothermal Research, 2013

Research paper thumbnail of Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review

Journal of Volcanology and Geothermal Research, 2013

Research paper thumbnail of Volcano in the lab: An analogue investigation of bubble-driven surface displacement

This dataset contains all the data recorded during the analogue experiment run to simulate a volc... more This dataset contains all the data recorded during the analogue experiment run to simulate a volcanic elastic conduit and relative ground deformation associated to Strombolian activity. This dataset also contain the codes used to process the data.

Research paper thumbnail of GNSS TEC‐Based Detection and Analysis of Acoustic‐Gravity Waves From the 2012 Sumatra Double Earthquake Sequence

Journal of Geophysical Research, 2021

Research paper thumbnail of Correlation Between GNSS‐TEC and Eruption Magnitude Supports the Use of Ionospheric Sensing to Complement Volcanic Hazard Assessment

Journal of Geophysical Research: Solid Earth

Research paper thumbnail of Multivariate approaches to infer volcanic system parameters, timing, and size of explosive eruptions

Research paper thumbnail of Rapid identification of tsunamigenic earthquakes using GNSS ionospheric sounding

Scientific Reports

The largest tsunamis are generated by seafloor uplift resulting from rupture of offshore subducti... more The largest tsunamis are generated by seafloor uplift resulting from rupture of offshore subductionzone megathrusts. The rupture of the shallowest part of a megathrust often produces unexpected outsize tsunami relative to their seismic magnitude. These are so called 'tsunami earthquakes', which are difficult to identify rapidly using the current tsunami warning systems, even though, they produce some of the deadliest tsunami. We here introduce a new method to evaluate the tsunami risk by measuring ionospheric total electron content (TEC). We examine two M w 7.8 earthquakes (one is a tsunami earthquake and the other is not) generated in 2010 by the Sunda megathrust, offshore Sumatra, to demonstrate for the first time that observations of ionospheric sounding from Global Navigation Satellite System (GNSS) can be used to evaluate the tsunamigenic potential of earthquakes as early as 8 min after the mainshock.

Research paper thumbnail of New insight into a volcanic system: Analogue investigation of bubble‐driven deformation in an elastic conduit

Journal of Geophysical Research: Solid Earth

Analogue and numerical simulations have been widely used to describe the mechanisms of bubble and... more Analogue and numerical simulations have been widely used to describe the mechanisms of bubble and slug ascent during volcanic eruptions as well as their formation and explosion mechanisms. Nevertheless, little is known about the mechanical interaction between the fluid and the surrounding medium. In this work, we report the results from analogue experiments designed to show how deformation of the conduit walls induced by the rising slugs is related to the radiation and propagation of seismic and geodetic signals. For the first time, we investigate the dynamics of bubbles in an elastic conduit unveiling the relationship between slugs and crustal strain accumulation around the conduit. Moreover, we discuss the retroactive effects of the deformed conduit wall on the dynamics of a rising slug, particularly, how the flow is affected, and the eventual implications on the intensity of the eruption. Our results show that the combination of an elastic conduit with a large volume of gas may lead to the development of a new type of slug, here defined as a "super slug," characterized by tapering towards the tail and a much higher ascent velocity and inner pressure compared with ordinary slugs. This newly observed behavior could be linked to vigorous explosive events.

Research paper thumbnail of A Bayesian Approach to Infer Volcanic System Parameters, Timing, and Size of Strombolian Events From a Single Tilt Station

Journal of Geophysical Research: Solid Earth

Research paper thumbnail of Three-dimensional hydrogeological reconstruction based on geological depositional model: A case study from the coastal plain of Arborea (Sardinia, Italy)

Engineering Geology, 2016

Research paper thumbnail of Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review

Journal of Volcanology and Geothermal Research, 2013

Research paper thumbnail of Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review

Journal of Volcanology and Geothermal Research, 2013

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