On 2022-01-15, the Hunga Tonga-Hunga Haʻapai undersea volcano in Tonga explosively erupted with around seven times the energy of its previous eruption on 2021-12-20, ejecting a cloud of water vapour and ash that grew to 150 km in diameter in less than one hour. The sound of the eruption was heard as far away as New Zealand. The imagery above is from the Japanese Himawari geostationary weather satellite. The eruption created a tsunami which measured 3.9 metres in Nuku’alofa, Tonga and flooded coastal areas.
Here is a longer report fro Force Thirteen AU with additional imagery. Note the apparent shock waves propagating outward from the explosion.