The eruption of the underwater volcano Hunga Tonga–Hunga Ha'apai created a tsunami felt across the Pacific Ocean. This includes Australia, where small but measurable tsunami waves were still being recorded as late as Monday afternoon. These may even persist into Tuesday morning.
The sea level gauge at Nuku’alofa, Tonga, recorded a tsunami wave of 1.19 metres before it stopped reporting. The waves that subsequently arrived at the Australian coast were comparable to some of the biggest tsunami waves recorded here, including those generated by the southern Chile earthquake in 1960 – one of the largest on record.
