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Remote Sens. 2016, 8(4), 298; doi:10.3390/rs8040298

Observing Volcanoes from the Seafloor in the Central Mediterranean Area

1
Istituto Nazionale di Geofisica e Vulcanologia (INGV), via di Vigna Murata 605, 00143 Rome, Italy
2
EMSO interim office, via di Vigna Murata 605, 00143 Rome, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: Zhong Lu, Peter Webley and Prasad S. Thenkabail
Received: 2 October 2015 / Revised: 16 February 2016 / Accepted: 16 March 2016 / Published: 1 April 2016
(This article belongs to the Special Issue Volcano Remote Sensing)
View Full-Text   |   Download PDF [10349 KB, uploaded 1 April 2016]   |  

Abstract

The three volcanoes that are the object of this paper show different types of activity that are representative of the large variety of volcanism present in the Central Mediterranean area. Etna and Stromboli are sub-aerial volcanoes, with significant part of their structure under the sea, while the Marsili Seamount is submerged, and its activity is still open to debate. The study of these volcanoes can benefit from multi-parametric observations from the seafloor. Each volcano was studied with a different kind of observation system. Stromboli seismic recordings are acquired by means of a single Ocean Bottom Seismometer (OBS). From these data, it was possible to identify two different magma chambers at different depths. At Marsili Seamount, gravimetric and seismic signals are recorded by a battery-powered multi-disciplinary observatory (GEOSTAR). Gravimetric variations and seismic Short Duration Events (SDE) confirm the presence of hydrothermal activity. At the Etna observation site, seismic signals, water pressure, magnetic field and acoustic echo intensity are acquired in real-time thanks to a cabled multi-disciplinary observatory (NEMO-SN1 ). This observatory is one of the operative nodes of the European Multidisciplinary Seafloor and water-column Observatory (EMSO; www.emso-eu.org) research infrastructure. Through a multidisciplinary approach, we speculate about deep Etna sources and follow some significant events, such as volcanic ash diffusion in the seawater. View Full-Text
Keywords: EMSO; seafloor observatories; stand-alone monitoring systems; volcano seismology; volcanic ash clouds EMSO; seafloor observatories; stand-alone monitoring systems; volcano seismology; volcanic ash clouds
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Giovanetti, G.; Monna, S.; Lo Bue, N.; Embriaco, D.; Frugoni, F.; Marinaro, G.; De Caro, M.; Sgroi, T.; Montuori, C.; De Santis, A.; Cianchini, G.; Beranzoli, L.; Favali, P. Observing Volcanoes from the Seafloor in the Central Mediterranean Area. Remote Sens. 2016, 8, 298.

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