Coastal lake records can be successfully used for reconstructing continuous histories of tsunamigenic megathrust earthquakes. Here, we apply a wide range of methods on one Japanese and two Chilean coastal lakes and show that the selection of coring locations benefits significantly from accompanying geophysical survey data. High-resolution seismic profiles display several strong reflectors in all three lake basins, allowing us to map the depth and extent of coarse-grained tsunami deposits. Side scan sonar imagery enables us to reconstruct past tsunami inundation pathways.
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