eruption
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Earth
Mauna Loa, the world’s largest active volcano, shows clear warning signs ahead of eruption in 2022
People look at lava from Mauna Loa volcano near Hilo, Hawaii, Thursday, Dec. 1, 2022. Credit: AP Photo/Gregory Bull, File Scientists can’t know exactly when a volcano will erupt, but they can spot telltale signs. It happened two years ago at the world’s largest active volcano. About two months before Mauna Loa spewed a river of glowing orange lava, geologists…
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Earth
Volcanic ash as a nutrient source: the impact of the Hunga Tonga eruption on the South Pacific ecosystem
GEOTRACES GP21 cruise track and Hunga Tonga Hunga Ha’apai (HTHH) volcanic eruption scattering volcanic ash. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-52904-3 The January 2022 eruption of Hunga Tonga Hunga Ha’apai (HTHH) released approximately 2.9 billion tons of volcanic material into the atmosphere and across the South Pacific. In early 2022, a scientific expedition (GEOTRACES GP21) investigated the impact of this…
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Earth
Tonga’s volcanic eruption was caused by an explosion equivalent to ‘five underground nuclear bombs,’ new study reveals
Mr. Jinyin Hu and Dr. Thanh-Son Phạm. Credit: Jamie Kidston/ANU Two years on, new research from the Australian National University (ANU) has revealed the main trigger of one of the largest volcanic eruptions in history, the Hunga Tonga submarine volcano. The study is published in the journal Geophysical Research Letters. Until now, the cause of this disaster has remained a…
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