The Graham and Terrible volcanic province (NW Sicilian Channel): gravimetric constraints for the magmatic manifestations

Lodolo, Emanuele; Zampa, Luigi; Civile, Dario

doi:10.1007/s00445-019-1274-0

Cited by 4 publications

(5 citation statements)

References 43 publications

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“…On top of the Terribile Bank, a field of numerous (ca 30) flattened truncated cones, isolated or clustered, sometimes coalescent, are spread over a 25 km 2 wide area ranging in depth from 100 to 40 m bsl (Figures 2A,C,E), giving origin to the TVF. Few of these cones were also identified in previous studies (i.e., Falzone et al, 2009;Coltelli et al, 2016;Civile et al, 2018;Lodolo et al, 2019b), while most of them are recognized for the first time in this work. Although the lack of high-resolution bathymetric data does not allow a detailed morphological analysis of the TVF, generally the cones show a smaller size in comparison with those of the GVF; indeed their width ranges between 100 and 300 m, while height from 10 to 50 m. The cones have a circular or elliptical (with maximum axis showing a predominant NW-SE FIGURE 7 | (A) ROV dive on top of the Ferdinandea shoal (S4).…”

Section: Morphological Analysis Of the Terribile Banksupporting

confidence: 76%

“…Thus, two main tectonic systems, N-S and NW-SE trending, consistent with the main regional tectonic lineaments affecting the Sicily Channel, seem to control the arrangement of the volcanic fields and the other volcanic centers of the surrounding area (as also inferred by Civile et al, 2018;Spatola et al, 2018;Lodolo et al, 2019a,b). These two preferential orientations are also confirmed by the occurrence of magnetic (Colantoni et al, 1975;Lodolo et al, 2012) and gravity (Civile et al, 2008;Lodolo et al, 2019b) anomalies.…”

Section: Distribution Of Volcanic Seamounts and Tectonic Controlmentioning

confidence: 70%

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The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

Cavallaro

Coltelli

2019

Front. Earth Sci.

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Section: Morphological Analysis Of the Terribile Banksupporting

confidence: 76%

Section: Distribution Of Volcanic Seamounts and Tectonic Controlmentioning

confidence: 70%

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

Cavallaro

Coltelli

2019

Front. Earth Sci.

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“…Extension of the SSRZ began ~7 Ma, with minor volcanism occurring during the late Miocene (Messinian) and the vast majority of volcanism occurring during the Plio-Pleistocene (Calanchi et al, 1989;Rotolo et al, 2006;Coltelli et al, 2016;Lodolo et al, 2019;Martinelli et al, 2019). Volcanic seamounts are primarily located in one of three areas within the SSRZ (Figure 1; Aissi et al, 2015): ( 1 Washington, 1909;Kelly et al, 2014;Cavallaro and Coltelli, 2019.…”

Section: Geologic Settingmentioning

confidence: 99%

Geochemical constraints on basalt petrogenesis in the Strait of Sicily Rift Zone (Italy): Insights into the importance of short lengthscale mantle heterogeneity

et al. 2020

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“…For the Graham, Terrible, and Nerita banks (e.g. [368,369]), an important historical record of submarine eruption exists (e.g., the formation of the Ferdinandea island in 1831). While the potential for tsunamigenic gravitational instability seems rather low, eruptive activity potentially generating tsunamis cannot be excluded [333].…”

Section: Gela Margin (Gm) and Sicily Channel (Sc)mentioning

confidence: 99%

Tsunami risk management for crustal earthquakes and non-seismic sources in Italy

et al. 2021

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Destructive tsunamis are most often generated by large earthquakes occurring at subduction interfaces, but also other “atypical” sources—defined as crustal earthquakes and non-seismic sources altogether—may cause significant tsunami threats. Tsunamis may indeed be generated by different sources, such as earthquakes, submarine or coastal landslides, volcano-related phenomena, and atmospheric perturbations. The consideration of atypical sources is important worldwide, but it is especially prominent in complex tectonic settings such as the Mediterranean, the Caribbean, or the Indonesian archipelago. The recent disasters in Indonesia in 2018, caused by the Palu-Sulawesi magnitude Mw 7.5 crustal earthquake and by the collapse of the Anak-Krakatau volcano, recall the importance of such sources. Dealing with atypical sources represents a scientific, technical, and computational challenge, which depends on the capability of quantifying and managing uncertainty efficiently and of reducing it with accurate physical modelling. Here, we first introduce the general framework in which tsunami threats are treated, and then we review the current status and the expected future development of tsunami hazard quantifications and of the tsunami warning systems in Italy, with a specific focus on the treatment of atypical sources. In Italy, where the memory of historical atypical events like the 1908 Messina earthquake or the relatively recent 2002 Stromboli tsunami is still vivid, specific attention has been indeed dedicated to the progressive development of innovative strategies to deal with such atypical sources. More specifically, we review the (national) hazard analyses and their application for coastal planning, as well as the two operating tsunami warning systems: the national warning system for seismically generated tsunamis (SiAM), whose upstream component—the CAT-INGV—is also a Tsunami Service Provider of the North-eastern Atlantic, the Mediterranean and connected seas Tsunami Warning System (NEAMTWS) coordinated by the Intergovernmental Coordination Group established by the Intergovernmental Oceanographic Commission (IOC) of UNESCO, and the local warning system for tsunamis generated by volcanic slides along the Sciara del Fuoco of Stromboli volcano. Finally, we review the state of knowledge about other potential tsunami sources that may generate significant tsunamis for the Italian coasts, but that are not presently considered in existing tsunami warning systems. This may be considered the first step towards their inclusion in the national tsunami hazard and warning programs.

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The Graham and Terrible volcanic province (NW Sicilian Channel): gravimetric constraints for the magmatic manifestations

Cited by 4 publications

References 43 publications

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

The Graham Volcanic Field Offshore Southwestern Sicily (Italy) Revealed by High-Resolution Seafloor Mapping and ROV Images

Geochemical constraints on basalt petrogenesis in the Strait of Sicily Rift Zone (Italy): Insights into the importance of short lengthscale mantle heterogeneity

Tsunami risk management for crustal earthquakes and non-seismic sources in Italy

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