The highly explosive eruption at Hunga Tonga-hunga Ha'apai and subsequent tsunami in January 2022 has reinforced the necessity to explore and quantify volcanic tsunami sources. However, a lack of previous field data and modelling effort means that volcanogenic tsunami and wave hazard remains less understood than that of other tsunami sources. Numerous localities across the Pacific, including the northern shores of New Zealand, may yet be found to be exposed to such events in the future. Caldera lakes, such as Lake Taupō, may also experience tsunami-like hazards from volcanic eruptions.
