Evolution of submarine eruptive activity during the 2011?2012 El Hierro event as documented by hydroacoustic images and remotely operated vehicle observations - Somoza, Luis; González, F. Javier; Barker, S. J.; Madureira, Pedro; Mdialdea, Teresa; de Ignacio, C.; Lourenço, Nuno; León, R.; Vázquez, J. T.; Palomino, D. (2017)