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 Kumagai1, John Makario Londono2, Cristian M Lopez2, Lina M Castaño2, Beatriz Beatriz2 and Lina García2, (1)Nagoya University, Nagoya, Japan, (2)Colombia Geological Survey, Manizales, Colombia