Seismic tremor reveals active trans-crustal magmatic system beneath Kamchatka volcanoes

Researchers have uncovered evidence of a highly dynamic, trans-crustal magmatic system beneath the Klyuchevskoy Volcanic Group in Kamchatka using seismic tremor analysis. The study reveals that tremor sources are distributed across extensive spatial regions and crustal depths, connecting multiple volcanoes within the group. Rapid vertical and lateral migrations of tremor activity suggest fast pressure transients and dynamic permeability, challenging traditional models of magma storage and transport. This finding supports a conceptual model of extended, highly dynamic magmatic systems, providing new insights into volcanic processes that could improve our understanding of eruption styles and mechanisms.

Journeau, C., Shapiro, N. M., Seydoux, L., Soubestre, J., Koulakov, I. Y., Jakovlev, A. V., Abkadyrov, I., Gordeev, E. I., Chebrov, D. V., Droznin, D. V., Sens-Schönfelder, C., Luehr, B. G., Tong, F., Farge, G., & Jaupart, C. (2022). Seismic tremor reveals active trans-crustal magmatic system beneath Kamchatka volcanoes. Science Advances, 8(5). https://doi.org/10.1126/sciadv.abj1571