Results 151 to 160 of about 907 (188)
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Journal of Volcanology and Geothermal Research, 2013
Abstract A network of autonomous underwater hydrophones is used to monitor acoustic activity associated with Hunga Ha'apai-Hunga Tonga volcano during a period of 15 months. The data provide a continuous record spanning a surtseyan eruption (VEI 2) in March of 2009, which input ~ 10 13 J of acoustic energy into the ocean soundscape.
Delwayne R Bohnenstiehl +2 more
exaly +2 more sources
Abstract A network of autonomous underwater hydrophones is used to monitor acoustic activity associated with Hunga Ha'apai-Hunga Tonga volcano during a period of 15 months. The data provide a continuous record spanning a surtseyan eruption (VEI 2) in March of 2009, which input ~ 10 13 J of acoustic energy into the ocean soundscape.
Delwayne R Bohnenstiehl +2 more
exaly +2 more sources
The impacts and legacy of the 2022 eruption of Hunga Volcano, Kingdom of Tonga
2023The climax of the 2021-2022 eruption of Hunga Volcano (also called Hunga Tonga – Hunga Ha’apai) on the 15th January 2022 was the most explosive volcanic eruption this century. The eruption generated pressure waves that travelled around the planet multiple times, ash clouds that reached the mesosphere, tsunamis with run-ups over 10 m and severed the ...
Yeo, Isobel Alice +22 more
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Remote Sensing of the Electromagnetic Effects of the Tonga Volcano Eruption on January 15, 2022
Физика земли, 2023The possibility of remote studies of electromagnetic and ionospheric effects caused by the eruption of the Tonga volcano on January 15, 2022 is shown. At distances up to 15 000 km from the source, geomagnetic field variations associated with disturbances of the Schuman resonance (SR), Lamb wave propagation and acoustic-gravitational waves are ...
B. G. Gavrilov +3 more
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Mafic Plinian volcanism and ignimbrite emplacement at Tofua volcano, Tonga
Bulletin of Volcanology, 2011Tofua Island is the largest emergent mafic volcano within the Tofua arc, Tonga, southwest Pacific. The volcano is dominated by a distinctive caldera averaging 4 km in diameter, containing a freshwater lake in the south and east. The latest paroxysmal (VEI 5-6) explosive volcanism includes two phases of activity, each emplacing a high-grade ignimbrite ...
Caulfield, J. T. +3 more
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The Denham Caldera on Raoul Volcano: dacitic volcanism in the Tonga–Kermadec arc
Journal of Volcanology and Geothermal Research, 1999Denham Caldera, on Raoul Volcano in the Tonga–Kermadec arc, is a simple collapse structure. It is 6.5×4 km2 across, >0.3 km deep, represents an erupted magma volume of 8–16 km3, and is considerably larger than previously estimated. Caldera formation was contemporaneous with an eruption of homogeneous dacitic magma at 2.2 ka.
Tim J Worthington +2 more
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Sporadic E responds to the 2022 Tonga volcano eruptions
In this study, we analyzed ionosonde observations in Eastern Asia to investigate the responses of the sporadic E (Es) layer to severe atmospheric disturbances caused by the Tonga volcanic eruptions on 15 January 2022. The most notable feature observed was the disappearance of the Es layer after approximately 10:00 UT, attributed to the vertical drift ...Jin Wang, Yang-Yi Sun
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Electromagnetic ULF noises, caused by the volcanic lightnings of the Tonga volcano
Геофизические исследованияThe eruption of the Tonga volcano on January 15, 2022, and the intense lightning activity that accompanied it led to the occurrence of electromagnetic oscillations in different frequency ranges. The properties of these oscillations were analyzed using data from induction magnetometers in the Far East, located at a distance of about 8000 km from the ...
Danila Stukov, Vyacheslav Pilipenko
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Decades long priming of plumbing system preceding the 2022 eruption of Hunga Tonga Volcano, Tonga
Hunga Tonga volcano, located in the Kingdom of Tonga in the southwest Pacific Ocean northeast of New Zealand, forms part of the Tonga–Kermadec subduction zone and is renowned for its VEI 6 eruption in 2022, the most explosive volcanic event of the past century. This cataclysmic eruption generated a volcanic plume rising to >58 km into the mesosphereEnrico Califano +9 more
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Plumbing System of Hunga Tonga Hunga Ha’apai Volcano
Journal of Earth Science, 2023Román Alvarez, Miguel Camacho
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