Structure of the Shallow Supply System at Stromboli Volcano, Italy, through Integration of Muography, Digital Elevation Models, Seismicity, and Ground Deformation Data

Tioukov, V.; Giudicepietro, Flora; Macedonio, Giovanni; Calvari, Sonia; Traglia, Federico Di; Fornaciai, Alessandro; Favalli, Massimiliano

doi:10.1002/9781119722748.ch6

Cited by 8 publications

(9 citation statements)

References 102 publications

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“…The drone survey carried out in September 2021, when compared to the previous profile obtained in June 2020 by Civico et al (2021), shows several zones of growth and accumulation of erupted products around most of the summit vents (Figure 5F), involving an increased hazard of further failures. In addition, a recent survey detected a significant volume increase of the talus building up the NE flank of the summit cone (Tioukov et al, 2022), thus confirming the summit area of the volcano as being prone to further collapses.…”

Section: Hazard Assessmentmentioning

confidence: 86%

“…Since the end of the 2007 flank eruption (Patané et al, 2007;Neri and Lanzafame 2009), the summit crater terrace depression grew mainly on its NE margin building up a thick talus by accumulation of debris, spatter and ejecta erupted during the persistent explosive activity by the NEC vents (Harris and Ripepe, 2007;Di Traglia et al, 2020;Schmid et al, 2021;Tioukov et al, 2022). This rapidly grown constructional morphology is also frequently affected by small collapses (~10 4 -10 5 m 3 ; Falsaperla et al, 2006;Civico et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Multi-parametric study of an eruptive phase comprising unrest, major explosions, crater failure, pyroclastic density currents and lava flows: Stromboli volcano, 1 December 2020–30 June 2021

et al. 2022

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Open conduit volcanoes like Stromboli can display elusive changes in activity before major eruptive events. Starting on December 2020, Stromboli volcano displayed an increasing eruptive activity, that on 19 May 2021 led to a crater-rim collapse, with pyroclastic density currents (PDCs) that spread along the barren NW flank, entered the sea and ran across it for more than 1 km. This episode was followed by lava flow output from the crater rim lasting a few hours, followed by another phase of lava flow in June 2021. These episodes are potentially very dangerous on island volcanoes since a landslide of hot material that turns into a pyroclastic density current and spreads on the sea surface can threaten mariners and coastal communities, as happened at Stromboli on 3 July and 28 August 2019. In addition, on entering the sea, if their volume is large enough, landslides may trigger tsunamis, as occurred at Stromboli on 30 December 2002. In this paper, we present an integration of multidisciplinary monitoring data, including thermal and visible camera images, ground deformation data gathered from GNSS, tilt, strainmeter and GBInSAR, seismicity, SO2 plume and CO2 ground fluxes and thermal data from the ground and satellite imagery, together with petrological analyses of the erupted products compared with samples from previous similar events. We aim at characterizing the preparatory phase of the volcano that began on December 2020 and led to the May–June 2021 eruptive activity, distinguishing this small intrusion of magma from the much greater 2019 eruptive phase, which was fed by gas-rich magma responsible for the paroxysmal explosive and effusive phases of July–August 2019. These complex eruption scenarios have important implications for hazard assessment and the lessons learned at Stromboli volcano may prove useful for other open conduit active basaltic volcanoes.

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Section: Hazard Assessmentmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Multi-parametric study of an eruptive phase comprising unrest, major explosions, crater failure, pyroclastic density currents and lava flows: Stromboli volcano, 1 December 2020–30 June 2021

et al. 2022

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“…Stromboli is a volcanic island in the Mediterranean Sea characterized by a persistent explosive activity that produces hundreds of moderate explosions per day. Three main vent regions are located in the upper part of the volcano: the North East (NE), the Central (C), and the South West (SW) vent regions (Figure 1) [18][19][20][21][22]. In recent decades, geophysical and volcanological studies have indicated that the ordinary explosive activity of Stromboli shows a variety of eruptive mechanisms and products, whose signature is distinguishable in the geophysical signals generated by the explosions (e.g., seismic and infrasonic signals).…”

Section: Introductionmentioning

confidence: 99%

Changes in the Eruptive Style of Stromboli Volcano before the 2019 Paroxysmal Phase Discovered through SOM Clustering of Seismo-Acoustic Features Compared with Camera Images and GBInSAR Data

et al. 2022

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Two paroxysmal explosions occurred at Stromboli on July 3 and August 28, 2019, the first of which caused the death of a young tourist. After the first paroxysm an effusive activity began from the summit vents and affected the NW flank of the island for the entire period between the two paroxysms. We carried out an unsupervised analysis of seismic and infrasonic data of Strombolian explosions over 10 months (15 November 2018–15 September 2019) using a Self-Organizing Map (SOM) neural network to recognize changes in the eruptive patterns of Stromboli that preceded the paroxysms. We used a dataset of 14,289 events. The SOM analysis identified three main clusters that showed different occurrences with time indicating a clear change in Stromboli’s eruptive style before the paroxysm of 3 July 2019. We compared the main clusters with the recordings of the fixed monitoring cameras and with the Ground-Based Interferometric Synthetic Aperture Radar measurements, and found that the clusters are associated with different types of Strombolian explosions and different deformation patterns of the summit area. Our findings provide new insights into Strombolian eruptive mechanisms and new perspectives to improve the monitoring of Stromboli and other open conduit volcanoes.

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“…The constant flux and the high penetration power of muons allow passive and remote imaging of the shallow density structures in volcanoes at a spatial resolution of few meters (Macedonio et al., 2022; Miyamoto et al., 2022; Nishiyama et al., 2014; Oláh et al., 2018). Muography has already been used to image the spatio‐temporal evolution of magmatic materials—for example, ascent and descent of magma within a volcanic vent (Tanaka et al., 2014), magma degassing (Tanaka et al., 2009), and plug formation underneath deactivated craters (Oláh et al., 2019)—and to observe structural changes (Lo Presti et al., 2022; Tioukov et al., 2022) and hydrothermal activities (Gibert et al., 2022) in volcanic systems. The early warning capabilities of muography have also been studied (Leone et al., 2021; Nomura et al., 2020; Oláh & Tanaka, 2022a).…”

Section: Methodsmentioning

confidence: 99%

Muon Imaging of Volcanic Conduit Explains Link Between Eruption Frequency and Ground Deformation

Oláh

Gallo

Hamar

et al. 2023

Geophysical Research Letters

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Structure of the Shallow Supply System at Stromboli Volcano, Italy, through Integration of Muography, Digital Elevation Models, Seismicity, and Ground Deformation Data

Cited by 8 publications

References 102 publications

Multi-parametric study of an eruptive phase comprising unrest, major explosions, crater failure, pyroclastic density currents and lava flows: Stromboli volcano, 1 December 2020–30 June 2021

Multi-parametric study of an eruptive phase comprising unrest, major explosions, crater failure, pyroclastic density currents and lava flows: Stromboli volcano, 1 December 2020–30 June 2021

Changes in the Eruptive Style of Stromboli Volcano before the 2019 Paroxysmal Phase Discovered through SOM Clustering of Seismo-Acoustic Features Compared with Camera Images and GBInSAR Data

Muon Imaging of Volcanic Conduit Explains Link Between Eruption Frequency and Ground Deformation

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