Evidence of persistent seismo-volcanic activity at Marsili seamount

• Published in: Annals of geophysics Vol. 55; no. 2
• Main Authors: Antonino D'Alessandro, Giorgio Mangano, Giuseppe D'Anna
• Format: Journal Article
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 01-01-2012
• Subjects: Marsili Seamount; OBS/H; Seismo-volcano activity
• ISSN: 1593-5213; 2037-416X
• DOI: 10.4401/ag-5515

The Marsili submarine volcano is the largest European volcano, and it can be considered as the key to our understanding of the dynamics of the spreading and back-arc lithosphere formation in the Tyrrhenian sector [Marani et al. 2004, and references therein]. Despite its size, it is very difficult to monitor due to its geographical position [D'Alessandro et al. 2011], and it still remains little known. In 2006, the Centro Nazionale Terremoti (National Earthquake Centre) of the Istituto Nazionale di Geofisica e Vulcanologia (INGV) deployed a broadband ocean-bottom seismometer with hydrophone (OBS/H) [Mangano et al. 2011] on the flat top of Marsili volcano, at a depth of ca. 790 m. In only nine days, the instrument recorded ca. 800 seismo-volcanic events [D'Alessandro et al. 2009]. This revealed the intense seismo-volcanic activity of Marsili volcano for the first time. […]