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NIWA - Taihoro Nukurangi
@niwa_science

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Tonga volcano breaks even more records. 🌋 As well as being the largest eruption ever recorded with modern technology, new research has also found that the 2022 Hunga Tonga–Hunga Ha’apai eruption triggered the fastest underwater flow ever recorded. The eruption sent a huge surge of rock, ash and gas out along the seabed. NIWA and the UK’s National Oceanography Centre determined that these flows travelled at speeds of up to 122km/hour – 50% faster than any other recorded. 💨 The flows not only devastated marine life in the area, but also caused extensive damage to Tonga’s underwater telecommunication cables some 80km away. The cable lay in a valley south of the volcano, meaning the flows had enough power to go uphill over huge ridges and back down again to reach it. 😮   Read the full story at the link in our bio. 🔗 #thenipponfoundation #seabed2030 #volcano #tonga #hungatongahungahaapai #tongavolcano #seabedmapping #hazard #eruption #explosion #tsunami #bathymetry #seafloor #welovescience #underwaterflow