Vulcanian explosions in the process of building-destruction of the lava dome of andesitic volcano: Insight from the seismic signals recorded at Volcán de Colima, México

•Three types of the seismic signals of Vulcanian explosions are defined.•Multi-stage conceptual model of explosive process is proposed.•Explosive seismic signals give a useful tool for analysis of an eruption.•Seismic signals with LF initial phase are dominant during post-effusive stage.•Seismic signals with HF initial phase are significantly increased in number during co-effusive stage.