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 Tonga Trench
Tuesday 4 June 2019
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Nuku'alofa, Tonga

Thursday 6 February 2014
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Nuku'alofa, Tonga
A shallow M5.3 earthquake with an epicenter located 72km east of ‘Ohonua, ‘Eua was recorded at 4:04am this morning, February 6, according to the USGS.

Sunday 3 November 2013
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Nuku'alofa, Tonga
A M6.4 earthquake rattled Vava'u, in northern Tonga at 7:53am this morning, November 3, but no damage has been reported.

Tuesday 22 October 2013
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Nuku'alofa, Tonga
The first exploration of the Tonga Trench by a deep sea submersible vehicle to understand and document the environmental conditions and living species that exist in the second deepest point in the ocean was completed by Japanese researchers from October 7-20.

Tuesday 1 October 2013
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Nuku'alofa, Tonga
A short strong tremor was felt in Nuku'alofa this morning but no damage has been reported. The USGS Earthquake Information Center recorded a deep M5.4 earthquake centred 38km north east of Nuku'alofa at a local time of 11:41am.
