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Tsunami and storm surges are major threats on coastal settlements. The Pacific Coast of southwest Japan is impacted by typhoons and tsunamis caused by earthquakes along the Nankai trough. This part of the Philippine Sea to Eurasia Plate subduction zone is expected to cause another earthquake and tsunami in near future. To improve the predictability of potential events, it is important to establish chronologies of former tsunamis as a basis for long-term recurrence intervals. Characterization of potential event deposits following a multi-proxy approach provides information about sediment source, transport dynamics and depositional processes. Sandwiched between a mid-Pleistocene terrace and a beach ridge, the coastal lowlands at Shirasuka, are ideally situated to record evidence of typhoons and tsunamis. Sediment cores from the lowlands include seven potential extreme wave event deposits. Their age …