[HTML][HTML] Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography
Nevado del Ruiz volcano (NRV), Columbia, is one of the most dangerous volcanoes in the
world and caused the death of 25,000 people in 1985. Using a new algorithm for repeated
tomography, we have found a prominent seismic anomaly with high values of the Vp/Vs ratio
at depths of 2–5 km below the surface, which is associated with a shallow magma reservoir.
The amplitude and shape of this anomaly changed during the current phase of unrest which
began in 2010. We interpret these changes as due to the ascent of gas bubbles through …
world and caused the death of 25,000 people in 1985. Using a new algorithm for repeated
tomography, we have found a prominent seismic anomaly with high values of the Vp/Vs ratio
at depths of 2–5 km below the surface, which is associated with a shallow magma reservoir.
The amplitude and shape of this anomaly changed during the current phase of unrest which
began in 2010. We interpret these changes as due to the ascent of gas bubbles through …
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