Hydrothermal system behind White Island eruption
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(Marty Melville/Getty Images)
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Monday’s deadly eruption of the White Island volcano off the east coast of New Zealand’s North Island came without warning because the volcano has a hydrothermal system that suddenly releases pressure, scientists say. An earthquake, rising gas, variations in the water level of the lake and other forces can lead to a short-lived, steam-driven eruption within minutes or seconds, scientists say. Volcanos are fascinating and deadly. click on title above to access the short article and video (after clicking the little “not right now” box.