Hunga Tonga-Hunga Ha'apai eruption

• 15th January 2022
• eruption column 57 km in height
• hazard from volcanic ash (tephra)
• extra explosive due to seawater interacting with magma
• explosion heard in Alaska (9000 km)
• shockwave travelled around the world four times
• tsunami (93 metres) caused by collapse of volcano hit Tonga an island and travelled across the pacific