Topographic Maps of Mount Etna’s Summit Craters, updated to December 2015

Neri, Marco; Maio, Marina De; Crepaldi, Stefano; Suozzi, Enrico; Lavy, Muriel; Marchionatti, Federico; Calvari, Sonia; Buongiorno, M. F.

doi:10.1080/17445647.2017.1352041

Cited by 37 publications

(27 citation statements)

References 40 publications

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“…Explosive activity from this crater increased in intensity and became almost regular since 27 October, climaxing with a sequence of four paroxysmal events between 3 and 5 December (Vulpiani et al, 2016;Bonaccorso and Calvari, 2017;Neri et al, 2017). The four explosive events interrupted the usual trend of inflation observed at Mt.…”

Section: Lava Fountain From Vor 3-5 December 2015mentioning

confidence: 92%

“…; Vulpiani et al, 2016;Corsaro et al, 2017). Tephra fallout accumulated mostly within the summit crater, resulting in a fountain-fed rheomorphic lava of ∼7.2 × 10 6 m 3 (Corsaro et al, 2017;Neri et al, 2017). The strain data constrained the depth of the magmatic source …”

Section: Lava Fountain From Vor 3-5 December 2015mentioning

confidence: 99%

“…We know very little about the episode occurring in 2014 (Table 1) because of poor weather conditions. Neri et al, 2017), with the NE Crater, Voragine, the NW and SE pits of Bocca Nuova, the SE Crater, and the New SE Crater (NSEC) built up on its east flank since 2011. (c) Map of the SE flank of Etna volcano, modified after Calvari et al (2011), showing the location of the thermal (red circles) and visual (yellow circles) monitoring cameras used in this paper.…”

Section: Lava Fountaining From Nsec 2011-2013mentioning

confidence: 99%

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Paroxysmal Explosions, Lava Fountains and Ash Plumes at Etna Volcano: Eruptive Processes and Hazard Implications

et al. 2018

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Lava fountains have a major impact on the local population since they cause ash plumes that spread several kilometers above and hundreds of kilometers away from the crater. Ash fallout is responsible for disrupting airports and traffic on the motorways well beyond the area of the volcano itself, as well as affecting the stability of buildings and causing public health issues. It is thus a primary scientific target to forecast the impact of this activity on local communities on the basis of parameters recorded by the monitoring network. Between 2011 and 2015, 49 paroxysmal explosive episodes occurred at two of Mt Etna's five summit craters: the New South-East Crater (NSEC) and the Voragine (VOR). In this paper, we examine the features of the 40 episodes occurring at the NSEC during 2011-2013, and of the 4 events at VOR in December 2015. We study these paroxysms using geophysical monitoring data, characterize the episodes, and analyse all available data statistically. Our main results are two empirical relationships allowing us to forecast the maximum elevation of the ash plume from the average height of the lava fountain, useful for hazard assessment and risk mitigation. For Etna, and using the examples described in this paper, we can infer that wind speed <10 m s −1 generally results in strong to intermediate plumes rising vertically above the crater, whereas wind speed >10 m s −1 is normally associated with weak plumes, bent-over along the wind direction and reaching lower elevations.

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Section: Lava Fountain From Vor 3-5 December 2015mentioning

confidence: 92%

Section: Lava Fountain From Vor 3-5 December 2015mentioning

confidence: 99%

Section: Lava Fountaining From Nsec 2011-2013mentioning

confidence: 99%

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Paroxysmal Explosions, Lava Fountains and Ash Plumes at Etna Volcano: Eruptive Processes and Hazard Implications

et al. 2018

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“…Mount Etna, with its height of 3,324 m (in 2015; Neri et al, ), is the largest active onshore volcano in Europe. The volcanic activity is presently characterized by summit eruptions from five craters, and by fissural eruptions mainly clustered along three rift zones extending from the summit toward northeast, south, and west, respectively (Cappello et al, ).…”

Section: Introductionmentioning

confidence: 99%

DInSAR Analysis and Analytical Modeling of Mount Etna Displacements: The December 2018 Volcano‐Tectonic Crisis

Novellis

Atzori

Luca

et al. 2019

Geophysical Research Letters

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We investigate the 24–27 December 2018 eruption of Mount Etna occurred from fissures located on the volcano eastern flank and accompanied by a seismic swarm, which was triggered by the magma intrusion and continued for weeks after the end of the eruption. Moreover, this swarm involved some of the shallow volcano‐tectonic structures located on the Mount Etna flanks and culminated on 26 December with the strongest event (ML 4.8), occurred along the Fiandaca Fault. In this work, we analyze seismological data and Sentinel‐1 Differential Interferometric Synthetic Aperture Radar (DInSAR) measurements, the latter inverted through analytical modeling. Our results suggest that a dike source intruded, promoting the opening of the eruptive fissures fed by a shallower dike. Moreover, our findings indicate that the activation of faults in different sectors of the volcano may be considered as a response to accommodate the deformations induced by the magma volumes injection.

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“…Today five craters are active on the summit of Mt Etna (Neri et al, 2017): the North-East Crater (NEC), the Voragine (VOR), the Bocca Nuova (BN), the SouthEast Crater (SEC), and the New South-East Crater (NSEC). NEC, VOR, and BN formed inside the old Central Crater in 1911, 1945 and 1968, respectively.…”

Section: Introductionmentioning

confidence: 99%

Mapping Volcanic Deposits of the 2011–2015 Etna Eruptive Events Using Satellite Remote Sensing

et al. 2018

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Estimates of lava volumes provide important data on the lava flooding history and evolution of a volcano. For mapping volcanic deposits, including lava flows, the advancement of satellite remote sensing techniques offers a great potential. Here we characterize the eruptive events occurred at Mt Etna between January 2011 and December 2015 leading to the emplacement of numerous lava flows and to the formation of a new pyroclastic cone (NSEC) on the eastern flank of the South East Crater. The HOTSAT system is used to analyze remote sensing data acquired by the SEVIRI sensor in order to detect the thermal anomalies from active lava flows and calculate the associated radiative power. The time-series analysis of SEVIRI data provides an estimation of event magnitude and intensity of the effusive material erupted during each event. The cumulative volume estimated from SEVIRI images from 2011 to 2015 adds up to ∼106 millions of cubic meters of lava, with a time-averaged rate of ∼0.68 m 3 s −1 . This estimate is independently supported and bounded using a topographic approach, i.e., by subtracting the last topography of Etna updated to 2005 from a 2015 digital elevation model (DEM), produced using tri-stereo Pléiades satellite images acquired on December 18, 2015. The total volume of products erupted from 2005 to 2015, calculated from topography difference by integration of the thickness distribution over the area covered, is about 287 × 10 6 m 3 , of which ∼55 × 10 6 m 3 is the volume of the NSEC cone. This 10-year volume is below the typical erupted volumes on decadal scale at Mt Etna, interrupting its stable and resilient output trend.

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Topographic Maps of Mount Etna’s Summit Craters, updated to December 2015

Cited by 37 publications

References 40 publications

Paroxysmal Explosions, Lava Fountains and Ash Plumes at Etna Volcano: Eruptive Processes and Hazard Implications

Paroxysmal Explosions, Lava Fountains and Ash Plumes at Etna Volcano: Eruptive Processes and Hazard Implications

DInSAR Analysis and Analytical Modeling of Mount Etna Displacements: The December 2018 Volcano‐Tectonic Crisis

Mapping Volcanic Deposits of the 2011–2015 Etna Eruptive Events Using Satellite Remote Sensing

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