Articles | Volume 8, issue 3
https://doi.org/10.5194/se-8-697-2017
https://doi.org/10.5194/se-8-697-2017
Research article
 | 
23 Jun 2017
Research article |  | 23 Jun 2017

Dynamics and style transition of a moderate, Vulcanian-driven eruption at Tungurahua (Ecuador) in February 2014: pyroclastic deposits and hazard considerations

Jorge Eduardo Romero, Guilhem Amin Douillet, Silvia Vallejo Vargas, Jorge Bustillos, Liliana Troncoso, Juan Díaz Alvarado, and Patricio Ramón

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Cited articles

Arellano, S., Hall, M., Samaniego, P., Le Pennec, J.-L., Ruiz, A., Molina, I., and Yepes, H.: Degassing patterns of Tungurahua volcano (Ecuador) during the 1999–2006 eruptive period, inferred from remote spectroscopic measurements of SO2 emissions, J. Volcanol. Geoth. Res., 176, 151–162, 2008.
Bernard, B., Bustillos, J., Wade, B., and Hidalgo, S.: Influence of the wind direction variability on the quantification of tephra fallouts: December 2012 and March 2013 Tungurahua eruptions, Avances, 5, A14–A21, 2013.
Bernard, J., Kelfoun, K., Le Pennec, J.-L., and Vargas, S. V.: Pyroclastic flow erosion and bulking processes: comparing field-based vs. modeling results at Tungurahua volcano, Ecuador, B. Volcanol., 76, 1–16, 2014.
Bernard, J., Eychenne, J., Le Pennec, J.-L., and Narváez, D.: Mass budget partitioning during explosive eruptions: insights from the 2006 paroxysm of Tungurahua volcano, Ecuador, Geochem. Geophy. Geosy., 17, 3224–3240, 2016.
Biass, S., Bagheri, G., Aeberhard, W., and Bonadonna, C.: TError: towards a better quantification of the uncertainty propagated during the characterization of tephra deposits, Statistics in Volcanology, 1, 1–27, 2014.
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Short summary
The 1 February 2014 eruption of the Tungurahua volcano (Ecuador) was the second largest one since the re-awakening in 1999. The eruption showed precursory signs only 48 h before the eruption. The main explosions produced a 13 km eruptive column and pyroclastic density currents that reached the base of the volcano. Here we document the deposits related to the eruption and infer eruption mechanisms and transport processes.