An extreme explorer expedition in Tonga is aiming to become the first to dive and explore the Horizon Deep within the Tonga Trench. This week the Five Deeps Expedition aims to find out if the Tonga Trench is only the second-deepest in the Pacific or if it might be actually deeper than the Mariana Trench.
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Results for geology
Tuesday 4 June 2019
Thursday 19 March 2009
There was a moment of panic as a boatload of observers had a close encounter with an explosive eruption on Hunga Ha'apai yesterday, 18 March 2009, when they moved in close to take spectacular photographs of an eruption that is continuing today only 34 nautical miles off the coast of the capital Nuku'alofa. FROM OUR ARCHIVES.