Body and surface wave reconstruction from seismic noise correlations between arrays at Piton de la Fournaise volcano

Researchers successfully reconstructed body and surface waves propagating through Piton de la Fournaise volcano using ambient seismic noise correlations. By applying double beamforming techniques between three dense geophone arrays, they isolated waves traveling through the active magmatic system, including direct, reflected, and multipathing signals. This approach also revealed the impact of uneven noise source distribution on wave reflections. The study demonstrates a novel method for enhancing volcano imaging and monitoring by leveraging ambient seismic noise, offering valuable insights into subsurface structures and processes.

Nakata, N., Boué, P., Brenguier, F., Roux, P., Ferrazzini, V., & Campillo, M. (2016). Body and surface wave reconstruction from seismic noise correlations between arrays at Piton de la Fournaise volcano. Geophysical Research Letters, 43(3), 1047–1054. Portico. https://doi.org/10.1002/2015gl066997