New trigger proposed for record-smashing 2022 Tonga eruption

ScienceDaily
Nov 4, 2024, 3:06 pm335 pts
Fifteen minutes before the massive January 2022 eruption of the Hunga Tonga-Hunga Ha'apai volcano, a seismic wave was recorded by two distant seismic stations. The researchers propose that the seismic wave was caused by a fracture in a weak area of oceanic crust beneath the volcano's caldera wall. That fracture…

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