Strombolian-like volcano activity: a common macroscopic behaviour

• Published in: International Journal of Modern Physics B
• Main Authors: DE LAURO E, DE MARTINO S, FALANGA M, PALO M, SCARPA R
• Other Authors: DE LAURO, E, DE MARTINO, S, Falanga, M, Palo, M, Scarpa, R
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2011
• Subjects: Long-Period seismicity; Strombolian activity; Poissonian process; Diffusion; Eruption; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/11588/875156; https://doi.org/10.1142/S0217979209063845

We report the results of the analysis of the occurrence times of the strombolian-like explosions at Stromboli (Italy) and Erebus volcano (Antarctica). The distribution of the inter-times between successive explosion-quakes is exponential for both volcanoes, the only difference being the occurrence rate. It suggests that the signature of the standard Strombolian activity can be identified in a Poissonian process that rules the mechanism of generation of the explosions. Finally, we adopt coalescence Chandrasekar-Landau mean-field model for the formation of the exploding gas bubbles. The model provides a size distribution that is in a good agreement with the observed bubble dimensions.