Application of Full-waveform Inversion to Characterize Quick-clay Landslide Site in Southwest Sweden

Landslides are one of the most commonly occurring natural disasters. Recognition of the geometry of clay layers and the behaviour of their physical properties during and after a disturbance (e.g., excess rainfall) is crucial to understanding the mechanism of a landslide. A multidisciplinary geophysical survey led by Uppsala University was conducted over a landslide scar near the Gta river in southwest Sweden. Here, we present the application of full-waveform inversion/tomography (FWT) to two perpendicular seismic profiles that cross the landslide scar. Obtained high-resolution P-wave velocity models portrait geometry of the low-velocity zones attributed to the quick-clay layer.