An Oscillation of the Crack-like Conduit at Nevado del Ruiz Volcano, Colombia, Inferred from Multi-band Analyses of Very Long Period Seismic Events

Yuta Maeda1, Hiroyuki Kumagai2, John Makario Londono3, Cristian M Lopez3, Lina M Castaño3, Beatriz Galvis3 and Lina García3, (1)Nagoya University, Graduate School of Environmental Studies, Nagoya, Japan, (2)Nagoya University, Nagoya, Japan, (3)Colombia Geological Survey, Manizales, Colombia